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Intermediate 1 Unit 3a & b Photosynthesis, Respiration & Fertilisers
Name the carbohydrate produced by photosynthesis. Glucose
Name the process which produces glucose in green plants. Photosyntheis
Name the chemical in leaves which absorbs light.? Chlorophyll
Name the two substances absorbed by green plants during photosynthesis? Carbon dioxide and water
Name the process that animals can obtain energy by. Respiration
Name the products of respiration. Carbon dioxide and water
Name the gas produced during photosynthesis. Oxygen gas
Why do animals need energy? Warmth and movement
What are the two reactants in respiration? Glucose and oxygen
Name the gas which causes the greenhouse effect. Carbon dioxide
Give two reasons why the level of carbon dioxide in the atmosphere is increasing More fossil fuels burned. Clearing of forests.
What is global warming? The atmosphere retains more of the sun’s heat energy
Name the process which occurs when the atmosphere retains more of the sun’s heat energy? Global Warming
Global warming is caused by an increase in which gas? Carbon dioxide
What is the test for carbon dioxide gas? Turns limewater milky
What is a pesticide, fungicide and herbicide used for? Pesticide - kill pests/insects Herbicide - kill weeds Fungicide - prevent diseases
Suggest another way of controlling pests. Natural predators e.g birds eating caterpillars
Name the three essential elements needed for healthy plant growth Nitrogen, potassium and phosphorus
Why are fertilisers added to soil? To put essential elements back into the soil.
To be effective should fertilisers be soluble or insolube? Soluble
Some plants such as clover, beans and peas can convert nitrogen from the air into nitrates. Which part of the plant is able to do this? Root nodules
What can happen to the water in rivers and lochs when high levels of nitrates get into the water. The water becomes lifeless
The main artificial fertilisers include ammonium and nitrate compounds. Name the other two compounds used as fertiliser. Potassium compounds and phosphate compounds.
Give two examples of natural fertilisers? Manure and compost
Why has there been an increase in the use of artificial fertilisers? More food is needed for an increasing population.
What does the harvesting of crops prevent from happening? Essential elements being returned to the soil
How are the essential elements taken in by the plant? Through the roots as compounds
Intermediate 1 Unit 3a & b
Plants, photosynthesis and respiration Name _____________________.
Unit 3 Chemistry and Life Menu To work through a topic click on the title. Photosynthesis and Respiration The Effect of Chemicals on the Growth of PlantsThe.
Fertilisers Nat What has led to the need for more efficient food production? An increase in population.
National Curriculum Statements linked to this Unit 9D 2a about the need for a balanced diet containing carbohydrates, proteins, fats, minerals, vitamins,
How Ecosystems WorkSection 2 The Carbon Cycle The carbon cycle is the movement of carbon from the nonliving environment into living things and back Carbon.
How Ecosystems WorkSection 2 Section 2: The Cycling of Matter Preview The Carbon Cycle How Humans Affect the Carbon Cycle The Nitrogen Cycle Decomposers.
The carbon cycle is the movement of carbon from the nonliving environment into living things and back ◦ Carbon is the essential component of proteins,
How Ecosystems WorkSection 2 Section 2: The Cycling of Matter Preview Classroom Catalyst Objectives The Carbon Cycle How Humans Affect the Carbon Cycle.
Chapter 5 Section 2 The Cycling of Materials. Objectives List the three stages of the carbon cycle. Describe where fossil fuels are located. Identify.
Ecology 2.0 Cycles in the Environment Populations and Biodiversity.
Cycles in Nature Chapter 25, Section 2. Cycles of Matter The biosphere contains a fixed amount of water, carbon, nitrogen, oxygen, and other materials.
CHEMISTRY DEPARTMENT WAID ACADEMY Standard Grade Topic 14.
Fertilisers. Population and Food Needs The ever increasing world population means more food is needed and fertilisers are used to grow plants efficiently.
Energy in Ecosystems Human influence on the nitrogen cycle.
part of Earth where life exists located near Earth’s surface where sunlight available plants need sunlight to produce food - almost every other.
DAY 1 Chapter 5 How Ecosystems Work Section 2: Cycling of Materials.
Cycling of Matter. Warm Up Difference between abiotic & biotic factors Abiotic factors affecting oak tree growth Southern ON Arctic - vegetation.
The Nitrogen Cycle An essential part of proteins, DNA and other compounds needed for life…
Review Carbon Cycle Nitrogen Cycle Phosphorus Cycle.
Photosynthesis Chapter 3. What’s Photosynthesis A process in which cells capture sunlight and uses it to make food. A process in which cells capture sunlight.
How Ecosystems WorkSection 2 Section 2: The Cycling of Materials Preview Bellringer Objectives The Carbon Cycle How Humans Affect the Carbon Cycle The.
How Ecosystems WorkSection 2 DAY 1 Chapter 5 How Ecosystems Work Section 2: Cycling of Materials.
FOOD FROM THE SUN animals eat plants to get energy, other animals eat these animals, plants produce their own food from the sun.
The Carbon and Nitrogen Cycles. What is Carbon? Carbon is an element that is in all living things. Molecules containing carbon are called Organic.
ECOSYSTEM RECYCLING Material Cycles. As energy & matter move through exostyem matter must be recycle and reused Types of Cycle 1. Carbon & Oxygen Cycles.
After completing this topic you should be able to : State that the increasing world population has led to a need for more efficient food production. State.
Carbon, Nitrogen and Phosphorus Cycles – notes and videos.
Animation. What is photosynthesis? Leaves are green because of chlorophyll. Chlorophyll absorbs energy from the sun. It uses that energy to convert carbon.
1.Where is carbon found? 2.What gas in the atmosphere has carbon in it? 3.What 3 things make up the tissues of all living things? 4.What organisms make.
Environmental Science Ch. 3.2; The cycling of materials.
10/8/14 Objective: What are the biogeochemical cycles? Do Now:
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Section 2 The Cycling of Materials Objectives List the three stages.
1.2 Nutrient Cycles and Energy Flow (Part 1) pp
How Plants Get Their Food (1). How do plants get their food ? The soil was watered but nothing else was added. After 5 years, the tree had gained 74kg.
Cycles in Ecosystems Oxygen Water Carbon Nitrogen.
Intermediate 1 Unit 1a Substances
The Cell in Action Cell Energy Photosynthesis Cellular Respiration Fermentation.
Sustainable Ecosystems. Nutrient Cycles and Energy Flow All life on earth requires water and food. Water provides the liquid component that makes up cells.
Keystone Review Photosynthesis 1.A – Photosynthesis produce glucose, oxygen is not needed, but it is produced as a waste product. 2.B – Choices A, C, D;
ECOSYSTEM RECYCLING Material Cycles. As energy & matter move through ecosystem matter must be recycle and reused Types of Cycle 1. Carbon & Oxygen Cycles.
The Cycling of Materials Describe the short term and long term process of the carbon cycle. Identify one way that humans are affecting the nitrogen cycle.
Chemical Cycles in the Ecosystem By: Marissa Pioso, Amanda Clark, and Harry Cramer.
Intermediate 1 Unit 1d Acids & Alkalis
Organisms are mainly composed of C, H, O & N Living organisms also contain S and P as well as several other elements These elements compose the macromolecules.
Chapter 2.4. All organisms require energy to stay alive and function Radiant energy – energy that travels through empty space this is the energy.
Food Production and the Environment The Carbon Cycle.
Calderglen High School
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