Ppt on energy giving food meaning

Food Microbiology Dr M.Altamimi.

food contaminated with a pesticide last week. Worlds best restaurant Noma (Denmark) gives 70 customers food poisoning History and Development of Food Microbiology Food / at prescribed intervals are important to reduce microbial levels in food. In addition, developing means to prevent or reduce contamination from air, water, personnel/ donors to generate energy H2S). Importance The metabolisms and growth of microorganisms in food are important for several reasons. Microbial spoilage of foods with the loss of/

Energy in the Cell Energy is in two basic forms: 1. potential energy, which is energy stored up, ready to use, like a coiled spring, the capacity to do.

Respiration Respiration is generating energy by breaking down food molecules, converting the energy in their chemical bonds to ATP energy. Before oxygen was present in the atmosphere, all cells used anaerobic respiration, which means generating energy in the absence of /acetyl CoA converted to carbon dioxide (aerobic). 3. electron transport: high energy electrons converted to ATP (aerobic). Aerobic respiration yields 34 more ATPs per glucose, giving a total of 36 ATPs generated from each glucose. All but 2/


at all KNOWS that eating such mass-produced animal flesh is stupid. In addition animal flesh doesn’t give you much energy after you take into account the amount of energy needed to break it down. Not to mention what the animal fat does to your body… You/live a naturally long healthy life. PERSONAL FINANCE Health care costs: beimg healthier on a vegetarian diet means spending less on health care. Food costs: vegetarian foods tend to cost less than meat based items ETHICS Love of animals: i love animals as i /

KEY CONCEPT Life in an ecosystem requires a source of energy.

own food chain Beginning with a producer and including at least three organisms, give an example of a food chain/energy. Eating at lower trophic levels means more resources available. Movement up the pyramid explains the problems of Biological Magnification (DDT, PCBs, etc.) REVIEW: What are Food Chains and Food Webs How energy moves in an ecosystem OR who eats who!? ;) What is a Food Chain? Food Chain: A food chain shows one path of how energy moves through an ecosystem What is a Food Web? Food Web: A food/

Unit 07 “Work, Power, Energy and Energy Conservation” The Conservation of Energy.

to keep us __________! You must eat enough food to keep your body __________! Eating _________food means you don’t give your body enough ________to be _________. You may be __________, have _________ problems or be in a ______________ often! Eating _________ food means your body will store that food as ____________ energy in your body. We store this energy as “________”. This can hurt your body too/

Médecins Sans Frontières / Doctors Without Borders (MSF) UK

men and women.” Not inherently given by biology, these vary across cultures. “The distinct roles and behaviour may give rise to gender inequalities, i.e. differences between men and women that systematically favour one group. In turn, / energy to produce and drives future grain consumption. Media encourages the food transition from traditional diets of grains and vegetables to often high protein and fats and sugars, westernised dietary habits and lower physical activity levels. Globalisation can mean that/

An Introduction to Sustainable Energy Systems: www.virlab.virginia.edu/Energy_class/Energy_class.htm Carbon Fuels: Fossil, Biomass, Biofuels In the title.

not necessarily mean reduced COST OF POWER Because this is now a much more complex and expensive power plant Ill revisit cost in final Economic Analysis lecture, but to give you a preview: EIA (U.S. Energy Information Agency) gives Capital cost/ Bringing us to fermentation and distillation Which, as suggested by this picture CAN be fairly simple Yeast / Bacterial "food" has been prepared ("mash") Fermentation then = keeping conditions cozy Distillation is also fairly simple: Vaporize alcohol and other/

Biosphere 2 All information for this power point was retrieved from Holt McDougal power presentations CD as well as the Spaulding Namowitz Earth Science.

Lab experiments give researchers more control. Lab experiments are not reflective of the complex interactions in nature. Field experiments give a /Food chains and food webs model the flow of energy in an ecosystem. A food chain is a model that shows a sequence of feeding relationships. A food chain links species by their feeding relationships. A food/particular locations are classified by according to their mean monthly temperatures and their mean monthly rainfall Practice Creating Climatographs Warm Up (4/

Regents Review!!.

passed to the next step in the food chain. We give energy off as heat. As an organism consumes food, they consume a little bit of the food’s energy Among populations of any natural community, the basic food supply is always a critical factor because it is: A) produced by all organisms B) synthesized from oxygen C) a means of transferring energy D) present in surplus amounts Predator/

Healthy Scepticism! Health Cover Up – Vaccines, Biowarfare.

Apr 17th 2009. Health bodies claimed “this was expected”, but don’t really give a good reason why. It was slightly less than 3 years since the “Bird/Likely the inspiration for Rife’s Energy Treatment Radionics was one of the early examples of “electro medicine” or “energy medicine”. It basically means using electricity or magnetism to / He is one of the people who points out the importance of certain vitamins and food supplements in keeping healthy. He notes here how recommended dosages are far too low./

Ecological Footprint Quiz. Weather Which city has weather most similar to yours? Mean daily maximum - minimum temperatures in these cities are: Brisbane.

fuels, which are a non- renewable resource. This means that there is a set amount that exists on/hand-me- downs. Wearing second-hand clothing and giving your old clothes away is an example of the/energy efficiency rating when you are purchasing appliances. Use energy efficient light globes in your home and office. Shopping with care Take your own bags when you go shopping and choose products with minimal and recycled/recyclable packaging. Buy local fruit and vegetables to reduce the transport distance of food/

Energy In A Cell Photosynthesis Cellular Respiration.

the mitochondria (Citric Acid Cycle/ Krebs’ Cycle.) Takes in Oxygen Takes in Glucose from food molecules Gives off Carbon Dioxide Gives off water Releases energy in the from of ATP Cellular Respiration Metabolic process that require oxygen are called aerobic. Metabolic process that do NOT require oxygen are called anaerobic meaning “without air”. A. Equation: C 6 H 12 O 6 + 6O 2 6CO 2/

FOOD PREPARATION AND MANAGEMENT NTD 403 (1 UNIT) Course requirements: CAT: 30%Exam: 70% Class attendance compulsory *Contact Lecturer ahead of time if.

extent in the cooking liquid. It is stable in the presence of heat but is easily oxidised, which means that the chemical process of the product is adversely affected by talking in oxygen Vitamin C is lost or /foods twice daily Give family diet made soft with less pepper and spices Give fruits and vegetables in season Children (25-60 months): Give diet that contains a variety of foods in adequate amounts. Add palm oil or vegetable oil to raise the energy level of complementary foods. Gradually increase food/

FOOD LABELLING ISSUES: QUANTITATIVE RESEARCH WITH CONSUMERS A Presentation to Food Standards Australia New Zealand (FSANZ) Job Number C02020 May 2003.

presented below.) Sugar : 42% Total fat : 40% Fat (unspecified) : 27% Energy : 25% Sodium : 21% Protein : 17% Carbohydrate : 11% Saturated fat : /food label information. – “Capacity” = past success in finding food label information; sufficient time to read labels while shopping; perceptions of label element clarity and trust of label elements. Levels or strength of “motivation” and “capacity” are broadly expressed as ‘high’, ‘moderate’ and ‘low’ - these are qualitative terms applied to give relative meaning/

Consumers’ Reactions to Converting Percentage Daily Energy into Equivalent Walking Time: Results from Qualitative and Quantitative Measures Brennen Mills,

they can use for sport.”  “Energy means power. I guess it is kind of like a burst of power or energy.”  “If I drink a carton of beer that will give me good energy.” Results – Qualitative (EWT)  The majority of participants described the EWT as instantly understandable, difficult to ignore, and helps people truly appreciate the implications of consuming EDNP foods:  “It’s an easy concept/

BASIC CHEMISTRY. Definition of Concepts Matter and Energy.

, or work capacities, each transformable to the other: –Kinetic energy: energy of motion Energy in action –Potential energy: stored energy Inactive energy that has the potential, or capability, to do work but is not presently doing so Matter is the substance, and energy is the mover of the substance ENERGY Forms of energy: –Chemical: energy stored in chemical bonds Potential energy in the foods you eat is eventually converted into the kinetic/

Chapter 6 The Human Organism and the Importance of Nutrition Topics: Nutrition and Nutrients: the Digestive System Respiration and Energy: Respiratory.

and cookbooks list food energy in Calories. Energy from food Only three of the six parts of your diet give you energy – Carbohydrates 4 cal/g – Proteins 4 cal/g – Fats 9 cal/g Energy needs You need energy for everything your /your kidneys more susceptible. – Excess Medications Many medications contain toxic substances. Too much medicine might hurt your kidneys. Homeostasis means keeping everything in balance. Mechanized Homeostasis Dialysis is what you need if your kidneys fail: – blood is removed pumped /

AGRICULTURE. AGRICULTURE  Producing Food for a Growing Population Growing Population  Producing Food for a Hungry World  Food – one of the basic requirements.

agriculture the best solution for increased food production in less-developed countries ? Should we give every farmer in LDCs a new John Deere tractor ? A better means of assistance in development of agricultural /problems facing world agriculture AGRICULTURE Erosion Nutrient Depletion Desertification Desertification Water Mismanagement Water Mismanagement Energy Energy Farmland Conversion Farmland Conversion Food Diversity Nutrient Depletion  Plants take essential nutrients from the soil nutrients from the/

University of Kurdistan Food Quality Evaluation Methods (FQEM) Lecturer: Kaveh Mollazade, Ph.D. Department of Biosystems Engineering, Faculty of Agriculture,

/k.mollazade 3 Introduction  The phenomenon of resonance is observed in these systems because they absorb and emit energy at specific frequencies.  The specific frequency depends on the individual atomic particle and the strength of the applied/means to the left.  NMR absorptions are measured relative to the position of a reference peak at 0 ppm on the  scale due to tetramethylsilane (TMS). TMS [Si(CH ₃ ) ₄ ] is a volatile inert compound that gives a single peak upfield from typical NMR absorptions. Food/

Carbohydrates Carbohydrates Learning Targets: 1. Describe the function and sources of carbohydrate. 2. Give tips for selecting healthful carbs.

means Carbo = carbon Hydrate = with H 2 O Look at the molecule at the right to see an example. Notice how most carbon atoms are paired with an oxygen and 2 hydrogens? The main function of carbohydrate is to give you energy. The main function of carbohydrate is to give you energy. Although energy/The plant groups:   Fruits   Vegetables   Grains all provide lots of carbohydrate. Many foods contain sugar refined from sugar cane.. This sugar also provides carbohydrates. II. What types of carbohydrate are /

Harmonic Wealth What does Harmonic wealth really mean? It’s about abundance in all areas of your life. Most people equate wealth with money, while money.

continually expressed literally tighten up your DNA. Nothing in life has any meaning besides the meaning you give it. No one can make you mad; you make yourself mad. Harmonic Wealth means controlling and choosing your emotions. Life is not what happens to me / Are they safe??? Exercise Exercise makes you feel better and have more energy. Our bodies are filled with toxins from the air we breath and from the pesticides in the food we eat. Exercise gets the blood and lymphatic systems pumping. Increased blood/

Biochemistry. Aim The aim of this option is to give you an understanding of the chemistry of important molecules in the human body, and the need for a.

give you an understanding of the chemistry of important molecules in the human body, and the need for a balanced and healthy diet. Energy Contents Recall the dietary requirements of humans. Food calorimetry Calculate the energy value of a food from enthalpy of combustion data Energy Energy/ and enzyme activity. Determine V max and the value of Michaelis constant (K m ) by graphical means and explain its significance. Describe the mechanism of enzyme action, including enzyme substrate complex, active site and/

Biology 2201 Unit 1 Matter and Energy 1Unit 1 Matter and Energy.

transport of proteins through the cell. It’s made of folded membrane. May be rough, which means it is covered with ribosomes, or smooth, which means it has no ribosomes The proteins that are made from the ribosomes on the rough ER are / of plant cells. The chlorophyll absorbs light energy and give leaves their green colour. – Light energy is used to transform carbon dioxide and water into energy-rich food. CO 2 + H 2 O C 6 H 12 O 6 + O 2 Energy Transformations con’t 2. Aerobic Cellular Respiration:/

Аuthor: Аuthor: Lototska O.V 1 Hygiene of feeding, its ecological and social problems. Hygienical examination of quality of food products. Scientific bases.

of nutrition Body building and repair Provision of energy Maintenance and regulation of tissue functions CLASSIFICATION OF FOODS 1. Classification by predominant functions: Foods Energy-giving foods Body building foods Protective foods Protective foods. These constitute inorganic salts, vitamins and minerals./which may vary from a fraction of a milligram to several grams. PROTEINS The word "protein" means that which is of first importance. Indeed they are of the greatest importance in human nutrition. /

Transfer of Energy in Ecosystems (Food Webs/Food Chains)

of a food chain? Warm up Sep. 19  What is the start of all food chains?  Give an example of a omnivore and carnivore.  How does a producer get its food? Objectives:  You will be able to: Explain how energy flows through / energy. Therefore, consumers are found after producers in a food chain.  The arrows in a food chain point in the direction that the energy is flowing. Food Chains  In this marine (aquatic) food chain, the phytoplankton is the producer. That means the phytoplankton makes its’ own food/

Food miles A measure of the distance that food travels from its source to the consumer. This can be given either in units of actual distance or of energy.

calorie intake, access to safe water and access to health services as indicators of health. The command term “evaluate” means you should explain how well each of these measures indicate the well-being of a specific population. You should learn statistics/ either in units of actual distance or of energy consumed during transport), then give examples of different foods and how their place of origin, mode of transfer and distance to their destination affect their food miles rating. 3. Disease Global patterns of/

Science 421 Ecology  The study of the interaction of living things & their environment  What else does it mean these days? Ecology is...Ecology is...

? What does the term cycling (or recycling) mean? What do we mean when we say that matter is recycled? Is food organic or inorganic? Explain the “cycling” of /- the process in which plants use solar energy, carbon dioxide from the atmosphere, and water from the soil to make food (sugar). Carbon Dioxide + Water + Light Energy Sugar (glucose) + Oxygen 6CO 2 /Canada dominated by deciduous trees such as maples and oaks conifers gradually give way to deciduous trees (less obvious shift than from tundra to boreal/

Tavistock Town Team Tavistock & District Local Economic Blueprint (Food section) August 2015 Tavistock and District Local Economic Blueprint Food &Drink.

Tamar Valley AONB  Recruited local stakeholders to own project  Agreed initial vision for our food and energy economy with stakeholders  Recruited food and energy sector experts to support project  Undertook secondary research from information available in public domain / of the River Tamar where possible.  Food for Life certification gives credit for food from the same region (eg South West)  Consumers also vary in interpretation [F2 p51 ]- but tend to mean from the vicinity of their home or the/

OBJECTIVE: Introduction to Thermochemistry, energy units + energy unit conversion math, review of Table B with descriptions, review of Table I and descriptions,

Food is the equivalent of energy. You eat food, which has its energy content measured in Calories. Too much food eaten = too many Calories of energy eaten = too much Charlie Eat less food means taking in less energy. You get tired quicker, and begin to use the stored energy in your body (fat becomes energy/ food is burned up in a sealed box containing oxygen, and the heat that it gives off, the energy that is inside the food, is used to heat pure water. This water is carefully measured, and the energy gained/

Lipid metabolism 1 You give me fever Peggy lee. 2 FATTY ACID OXIDATION β -oxidation is the pathway by which the fatty acids from both dietary fat and.

synthesis is most active following a meal In the first few hours after foods containing carbohydrates such as starch and sucrose have been digested and absorbed, the/contrast in water-binding capacity between fat and glycogen means that on a weight basis, it is more economical to store energy in the form of fat than in the form / of movement for the neighboring alkyl side chains 153 Hence, these unsaturated chains give rise to more fluidity than do saturated alkyl chains, which associate in ordered arrays/

Pure Planet: Our Culture Over 20 Years Making Super Foods Still the Manufacturer; Still Family Owned Pure Planet is an original whole foods company, with.

Benefits: Organic Kamut has been shown typically to cleanse and detoxify the body, promote cell regeneration and give immune system support, increase energy, combat fatigue, balance highly stressed over-acidic body systems and provide green leafy vegetable nutrients. Green plants/protective,” meaning it can help defend your body from sun damage. Soy Free, Non-GMO, Non-Irradiated, Vegan, Organic, Dairy Free, RAW History: Kamut was originally discovered in the Valley of the Kings in Egypt stored as food for /

FOOD AND SPORT CAVA DE’TIRRENI (SA) ITALY. HEALTHY FOOD AND SPORT Nonsense about diets The Healthy, varied and balanced diet The Ideal weight Food: General.

and stored food with additives. A Varied diet means a mixed one with cereals, legumes, meat, milk, fruit and vegetables. A Balanced diet refers to the food pyramid: in the sense that there must be a balance between intake and energetic expense. Food with a high energetic value gives a lot of energy and enables a lot of work, while food with low calories gives little energy. To keep/

Energy and Hazardous Waste. Coal Ch 19: 531-536 We use a variety of energy sources We use energy in our homes, machinery, and vehicles and to provide.

energy Net energy = the difference between energy returned and energy invested -Net energy = energy returned – energy invested Energy returned on investment (EROI) Energy returned on investment (EROI) = energy returned/energy invested -Higher ratios mean we receive more energy/Gives of low amount of radiation) Sources: nuclear power plants, hospitals & universities Currently depositted into landfills 2. High-level radiation (Gives/A POP that can bioaccumulate in food chains Electronics, plastic, paint, /

But Edison wasn’t aware of geothermal and atmospheric energy resources.

10 or 15 kilometres. And those shorter trajectories turn out to be crucial to giving us a higher climate sensitivity because of what they do to pull water vapour /and horizontal wind when the flow hits the ground. Some of this energy can be harvested by means of conventional wind turbines. Adapted from Divine Wind Altitude The Carnot Engine/ to increase by 40 percent, and 17 percent more water will be required for food production to meet the needs of the growing population. According to another estimate from /

IGCSE BIOLOGY SECTION 5 LESSON 1. Content Section 5 Uses of biological resources a)Food production b)Selective breeding c)Genetic modification (genetic.

Quick resultsPollution Can be economical Can enter the food chain Pest control Pesticides Biological control A chemical /added Temperature and pH must be constantly monitored Fermentation gives off a lot of heat, so a cooling/ limits movement. Fish fed on a special diet so they maximise energy transfer, and create minimum amount of faeces (so less eutrophication)/ predators and bigger fish). Controlled conditions, growth hormones. Crowding means that danger of disease and parasites is high. Chemicals added to/

Warm-Up Where does a producer receive energy from?

has arrows going away from it means: It does not get energy from other organisms Has to get energy from the sun Is, therefore, a producer Let’s Practice! Determine if each are receiving energy or giving energy: Grass Giving energy to Mice and grasshoppers Mice Receives energy from Grass and Grasshoppers and gives energy to Owls and skunks Grasshoppers Receives energy from the grass and Gives energy to the mice and skunks Skunks/

1. Define ecology. Study of the relationship between living and nonliving things 2. Define abiotic and give an example of an abiotic factor. Nonliving.

of energy A flow of energy from one population to another 12. What type of organism is capable of using and storing energy from the sun? Autotrophs 13. How must heterotrophs obtain energy? They must consume their food 14. How do detritivores obtain energy? Give an/. Plants help take carbon dioxide out of the atmosphere – fewer plants means more CO2 in the air People can contribute to the CO2 in the atmosphere – more Co2 means a greater greenhouse effect and higher temperatures 44. What is succession? Natural/

Nutrition for nursing Dr. Fahad Aldhafiri. Definitions Nutrition is the intake of food, considered in relation to the body’s dietary needs. Good nutrition.

energy The dietary sources of energy are ( proteins, fat, carbohydrates). They supply energy at the following rates:  1gram of Protein gives 4 kcal  1 gram of carbohydrates gives 4 kcal  1 gram of fat gives 9 kcal Energy requirements Definition: is the amount of food energy needed to balance energy/ are in this category. Moderately active men should multiply by 1.7 and women by 1.6. Moderately active means intense exercise lasting 20–45 minutes at least three time per week, or a job with a lot of walking/

· 4 th Grade Science What did you have for lunch today (or yesterday)? Sort food into 2 categories: Plant and Animal Why do we need to eat? Where do.

shrew, will be released to “eat” as many shrews as they can for 30-45 seconds. When you are “eaten” you will give the predator your bag of grass and sit down on the sideline. Game 2: Grasshoppers Shrews Hawks Lizards Hawks Game 1:Game 2: Number/Example: Grass plants use most of the energy they take in. They pass only a small amount of energy on to the grasshopper. This means there has to be more grass plants than crickets. Grasshoppers pass on just a small amount of food energy to the frog. So there must be/

GCSE Food Technology General Revision

packaging (MAP) Product recognition – Identify labels and advertising Packaging describes and identifies the contents. Good packaging design gives a brand image and links other products in the range. Orange, yellow and blue are popular packaging colours. Sustainability/DRV’s show the amount of food energy or other nutrients needed by people of different ages. Due diligence - In food preparation this means that the company has set up systems to help avoid contamination of food products. E numbers - The/

P4 Spaced learning Radiation for life.

space Rocks and soil – some rocks are radioactive and give off radioactive radon gas Living things – plants absorb radioactive materials from the soil and these pass up the food chain Tracers Radioisotopes are used as tracers in industry. These/ radioactive tracers. Uses of radiation in medicine Sterilising equipment Gamma rays are high energy electromagnetic waves which are only stopped by thick lead. This means they can easily pass through medical equipment, such as syringes. Tracers Radioactive tracers/

A NEW PLAYER…. WITH VERY STRONG AMBITIONS!. НАШЕ УТВЕРЖДЕНИЕ Complete and balanced food for dogs and cats; Big value for small amount of money; Best in.

tract health) Для стерилизованных и / или склонных к ожирению взрослых кошек Protein 32% - support and strengthen the body; Fat 7% - give energy; Ash 7% - for the musculoskeletal system and teeth; Fiber 4% - improves digestion; Calcium 0.8% - for bones and teeth/ – more doesn’t mean – better! *Market research indicates that professional breeders, who specifies in medium and large breeds, usually feed their dogs with premium dog food. The quality of raw material All pet food ARATON produced using only high/

C1 Revision. Food additives. Make food look and taste better, and last longer. Anti-oxidants stop the food from reacting with oxygen. Emulsifiers help.

and taste better, and last longer. Anti-oxidants stop the food from reacting with oxygen. Emulsifiers help oil and water mix. –Hydrophobic and hydrophilic. The E means it has passed a safety test, the number tells you what it/smoking, alcohol…) RESPIRATION What’s the equation? GLUCOSE PLUS OXYGEN GIVES CARBON DIOXIDE PLUS WATER PLUS ENERGY Can you remember it? Try saying it to yourself! Glucose + oxygen  carbon dioxide + water + (energy) FATIGUE When we do hard exercise, we respire ANAEROBICALLY and LACTIC/

Positive pressure – pushing the air in. Active Transport This is when some thing moves against the concentration gradient. Low to High! It needs energy.

leaves leaf by evaporation Leaves are thin and flat giving them a large surface area for diffusion of gases /Food ‘ producing food in a way stops energy loss and conserves biomass ’ Reduce food miles (how far food travels) = Less fuel used and less pollution Short food chains are better then long ones! Energy and biomass is lost at every stage. Energy lost as movement Energy/ massive population growth This means we use more… Space Electricity and Fuel Food and Water More food and better healthcare Using up/

Biology 12. Matter and energy In most natural ecosystems, matter cycles and is re-used Energy flows and is lost At each trophic level most of the energy.

whether each of the following statements about the food web is TRUE or FALSE. Give a reason for each answer. (i) Energy is constantly lost from the food web. (ii) Some of the biomass in/energy, but efficiency is low consumers gain energy from breaking down ingested organic compounds at each step in a food chain, only 10% of energy is transferred the longer the food chain, the less energy at the end biomass reduces at each step in a food chain the short food chain involving humpback whales means more energy/


or long-term illness, you must make sure your diet gives you enough energy and the proper nutrients to fight the illness. Food Safety Food-Borne Illness A food-borne illness is an illness caused by eating or drinking a food that contains a toxin or disease-causing organism. Food-borne Illness Affect the stomach and intestines Food-borne illness can cause diarrhea, cramping,fever, headache, vomiting, and/

Climate Limits to Vegetation Geog403. Ecosystem: a linkage of plants (or animals) to their environment in an open system as far as energy is concerned.

far as energy is concerned (solar energy is absorbed and chemical and heat energy are lost). Example: Sunlight phytoplankton carbohydrates (food substance; these food producing plants /prefer 60 to 65°F and are intolerant of high summer temperature (monthly mean above 70-75F) 1.Very hardy crops that normally may encounter freezing / cashews, pistachios, currants, and raisins are considered as strength giving food. B.Blood producing foods: the food that has ability to replenish blood supply in the body. These/

Environmental Biology and Genetics. Energy Flow Ecology – The study of living organisms in relation to their environment Ecology – The study of living.

The arrows indicate the direction of energy transfer. The arrows indicate the direction of energy transfer. Food Webs In nature a food chain rarely occurs in isolation In nature a food chain rarely occurs in isolation The /habitats and niches it contains increases This gives rise to a wide diversity of species in every ecosystem This gives rise to a wide diversity of /to cope with other/different habitats, environmental conditions This means that some species will only be found in an area where the conditions/

Understanding food webs

in a food chain. A simple food web. What do the arrows in the food web mean? What is a trophic level. Give an example of a trophic level What is a trophic level? Give an example of a trophic level. Looking at Figure 2.2.11b, give an example/them – this is called ‘culling’. Analyse and evaluate the impact of culling the majority of harp seals. Explain how this food web shows that energy is transferred from the copepod to the Arctic tern. Harp seal populations are controlled by killing them – this is called ‘/

Biology Content Review

food chain” Why are producers necessary in any ecosystem? Make energy from the sun available/usable for heterotrophs. Flow of Energy Through an Ecosystem Consumer Obtains energy through eating other organisms Herbivore: eats only plants Carnivore: eats only animals Omnivore: eats both plants and animals Primary consumer: eats producers Secondary consumer: eats the consumers that eat the producers Flow of Energy Through an Ecosystem Consumer Means/to give me a copy of your work so I can look over it and give /

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