Presentation on theme: "Btec Level 2 Science B1. Portfolio Work Grading criteria P1describe the main characteristics within the major classification groups construct simple identification."— Presentation transcript:
Btec Level 2 Science B1
Portfolio Work Grading criteria P1describe the main characteristics within the major classification groups construct simple identification keys Grading criteria M1explain the need to classify organisms Grading criteria D1discuss the characteristics which are used to distinguish the major groups
Btec B1 Lesson 1 Aims: Understand the characteristics of living things Know what all living things must do in order to continue their existence
Activities Use longman FND book 1 (page 6-7) What are the seven characteristics of life? Make an A4 poster to explain to a friend in Year 10 what the seven life processes are? What does the Acronym MRS GREN mean? Include your own (but different) acronym in your poster Ask Mr Connett to demo and explain the bunsen burner… Is it alive?
When finished… The characteristics of life will form the introduction page to the assessment for Unit B1
Btec B1 Lesson 2 Aims: Understand the difference between virus and bacteria Why... This will form part of your assessment for B1
Questions to discuss... Why are the words not in english? What language are they in? Why has the grouping changed over the last 250 years?
ICT Research... We are looking at the 5 kingdom system from This lesson you have to complete some initial research into the five Kindoms. Wikipedia is a good place to start
Btec B1 Lesson 3b Aims: Understand the characteristics of Plants and how they are classified Why... This will form part of your assessment for B1
Task... In groups of 4 Walk behind the all-weather pitch and collect small samples of at least 10 different plants. Bring back to classroom.
Task... Arrange your plants in groups Make a key to help identification You could start like this... Use the worksheet to help... Is it a flowering plant..? YesNo What colour are the flowers..? WhiteYellow Blue Start Here... The idea is... Your plant is identified by answering a series of questions...
Sorting it out... saps.plantsci.cam.ac.uk/trees/intro1 a.htmhttp://www- saps.plantsci.cam.ac.uk/trees/intro1 a.htm gallery/british_plants.asp latin name – Common Namehttp://www.biology4all.com/picture_ gallery/british_plants.asp
Btec B1 Lesson 4 Aims: Research the characteristics of vertebrate and invertebrates. Why... This will form part of your assessment for B1
Task... Produce a tree map, showing the classification of various groups pf animals
You must describe the main characteristics of the major classification groups. Construct simple identification keys. Monera Protista Fungi Plantae Animalia A table is a good way to present your information You will also need to include a key that will help a biologist identify an organism. You could use one you have previously made or complete further research from the internet. It must be you own work – a printed / photocopied key is not sufficient. Describe [give a clear description that includes all the relevant features. Think of it as painting a picture with words.]
Information… Jones & Jones Page 500… A2 Biology Page 60… Name of group MoneraProtistaFungiPlantaeAnimali a Example Diagram Describe the charact eristics
Part 2 - Merit Explain the need to classify organisms For this part of the assessment you must explain the system of classification and why we need it. You will need to explain the benefits of the system and possible drawbacks. Research and write out 1 organism’s Linnaean classification (kingdom, phylum, class, order, family, genus, species) Explain [Provide details and give reasons and/or evidence to clearly support the argument you are making]
Classification… System is based on similarities between organisms Organisms below a group – share common features (e.g. vertebrate, fungi) Naming organisms (scientific) follows a simple rule. This means that new species can be given a name Biologists can place organisms with similar characteristics in groups. Some features in a group may not seem obvious. This means that the grouping system may initially seem wrong.
Part 3 – Distinction Discuss the characteristics which are used to distinguish the major groups. For this part of the assignment You have to discuss advantages and disadvantages of the main characteristics of the five groups. Discuss [provide in depth information about a topic. Explain arguments for and against. Provide your own conclusion]
Name of group MoneraProtistaFungiPlantaeAnimalia Example Diagram Describe the characteristics Choose three characteristics and explain why it is beneficial to the organism Which characteristics are not beneficial to the organism? Presenting the information in a table will help organize your coursework.
KingdomStructural Organisation Method of Nutrition Types of Organisms Named Species Total Species (estimate) Monera Small, simple single Prokaryotic Cell (nucleus is not enclosed by a membrane); some form chains or mats. Absorb foodBacteria, blue- green algae and spirochetes 4,0001,000,000 Protista Large, single eukaryotic cell (nucleus is enclosed by a membrane); some form chains or colonies. Absorb, ingest and/or photosynthesize food. Protozoan and algae of various types 80,000600,000 Fungi Multicellular filamentous form with specialised eukaryotic cells. Absorb foodFunguses, moulds, mushrooms, yeasts, mildews and smuts 72,0001,500,000 Plantae Multicellular form with specialised eukaryotic cells; do not have their own means of locomotion. Photosynthesize food Mosses, ferns, woody and non woody flowering plants. 270,000320,000 Animalia Multicellular form with specialised eukaryotic cells; have their own means of locomotion. Ingest foodSponges, worms, insects, fish, amphibians, reptiles, birds and mammals 1,326,2399,812,298
KingdomStructural Organisation Method of Nutrition Types of Organisms Named Species Total Species (estimate) Monera Protista Fungi Plantae Animalia
Monera Monera are bacteria and other mostly tiny, single- celled organisms whose genetic material is loose in the cell. Bacteria are very simple organisms which are made of cells with no nucleus. They eat, they are capable of reproducing themselves, and they have a membrane which separates the inside of themselves from the outside world. Blue-green algae are an example of one kind of bacteria.
Protist Protists are a diverse group of eukaryotic microorganisms. Organisms (with nucleated cells) that are not considered true animals, plants, fungi; includes algae
Fungi Molds, mildews, yeasts, mushrooms, and puffballs, a group of organisms lacking in chlorophyll (i.e., are not photosynthetic) and which are usually non- mobile, filamentous, and multicellular. Some grow in soil, others attach themselves to decaying trees and other plants whence they obtain nutrients. Some are pathogens, others stabilize sewage and digest composted waste.
Plantae An organism that is not an animal, especially an organism capable of photosynthesisorganism
Animal Animals are a major group of multicellular, eukaryotic organisms of the kingdom Animalia. Their body plan eventually becomes fixed as they develop, although some undergo a process of metamorphosis later on in their life. Most animals are motile, meaning they can move spontaneously and independently. Animals are also heterotrophs, meaning they are dependent on other organisms
Taxonomic rank Plant example Animal example kingdomplantanimalLargest phylumangiospermchordate classdicotyledonmammal orderurticalescarnivore familyurticaceaefelidae genusurticapanthera speciesdioicatigris Common name Stinging nettle tigersmallest
Kingdom - Animalia Phylum - Chordata Class - Chondrichthyes SubClass - Elasmobranchia Order - Lamniforme Family - Laminidae Genus - Carcharadon Species - Carcharadon Carcharias
Taxonomic rank Plant example Animal example kingdomplantanimalLargest phylumangiospermchordate classdicotyledonmammal orderurticalescarnivore familyurticaceaefelidae genusurticapanthera speciesdioicaleo Common name Stinging nettle lionsmallest
Taxonomic rank Name… kingdom phylum class order family genus species Common name Picture: Subspecies or Breeds:
Dogs and Cats Tigers and Lions – different species Do not (generally) interbreed Dogs Labrador, red setter, collie etc. These are sub species – not significantly different from each other Sub species can interbreed. Sub species in the wild are generally separated by a mountain range or a large body of water
Scientific classification Trinomial name Canis lupus familiaris (Linnaeus, 1758)Linnaeus Kingdom:Animalia Phylum:Chordata Class:Mammalia Order:Carnivora Family:Canidae Genus:Canis Species:C. lupus Subspecies:C. l. familiaris Taxonomic rank Animal example kingdomanimal phylumchordate classmammal ordercarnivore familyfelidae genuspanthera speciesleo Common name lion
Improving Coursework Most people had problems with… P(a)Write a simple definition of Classification M(i)Explain why it is necessary to classify organisms and the advantages of the Linnaean system
P(a) – You must achieve this else FAIL Explain why biologists put things into groups. Discuss… –Similar characteristics within groups –What happens when a new species is found –How organisms below a level have common features
M(h) – You need this for a Merit Why its necessary to classify organisms. –Discuss what happens when biologists find a new organism. –They look at the features and put it in the appropriate group based on Kingdom, phylum, class etc. –It’s then easy to put new organisms into groups –Discuss the language used (Latin) and why