IGCSE Biology

  • Created by: Emma Vos
  • Created on: 05-05-13 15:44
Movement
An action by an organsim causing a change in position or place
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Respiration
The chemical reaction that breaks down nutrient molecules to release energy
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Sensitivity
The ability to detect changes in the environment
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Reproduction
The process that make more of that same kind of organism
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Excretion
The removal of un-useful materials from an organism
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Nutrition
The taking in of nutrients
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Binomial system
A system naming species in which the scientific name of an organism is made up of 2 parts
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How do we properly write "HOMO SAPIENS"?
Homo sapiens
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Vertebrates (MR FAB)
Mammals, Reptiles, Fish, Amphibians and Birds
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Example of a Ampthibian is..?
Frog (They live on land and on water)
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The 3 main kingdoms are:
Animal, Plant and Fungi
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Invertebrates
Have no backbone (Arthropods, Annelids, Nematodes and Molluscs)
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Types of Arthropods:
CAMI- Crustaceans, Arachnids, Myriapods and Insects
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Example Nematode
Nematode
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Example Annelid
Earthworm
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Feature of a Mollusc:
Muscular foot e.g Snail
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Types of flowering plants
Monocotyledons and Dicotyledons
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What is Mitochondria?
An organelle where aerobic (with oxygen) respiration happens
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What comes first in a PLANT cell the cell wall or the cell membrane?
The cell wall
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Chloroplast
Only in plant cells and is used for light absorbtion
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Function of the red blood cell:
Transports oxygen
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Function muscle cells:
Contracts to get structures closer together
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Function and adaptations of a Cilliated cell:
Used to move mucus (snot like substance) they have tiny hairs called cillia which waft to move the mucus
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Function and adaptations of a Root hair cell:
Found in plant, they absorb minerals and water, they are elongated for more surface area
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Function and adaptations of a xylem vessel:
Transport water and support plant, no cytoplasm so water passes freely.
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Function and adaptations of a pallisade cell:
Carries out photosynthesis, many chloroplasts
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What is an organelle
A specialisized cell that has its own function
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How do you calculate magnification?
size of drawing/ size of specimen
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Active transport
Movement of ions in or out of a cell, against the concentration gradient using energy released during respiration
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Osmosis
The diffusion of water molecules from a region of high to low concentration through a semi-permeable membrane
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Isotonic solution
Concentrations are the same, no change in size
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Hypertonic solution
Concentration is greater in the cell so the cell shrinks
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Hypotonic solution
Concentration is greater outside the cell so the cell swells
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Catalyst
A substance that speeds up a chemical reaction
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Enzyme
Proteins that function as biological cataylsts
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Substrate
The molecules before they are made to react
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Product
The molecules that are made in a reaction
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Catabolic reaction
Molecules are broken down (e.g Digestion)
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Anabolic reaction
Molecules are combined (e.g turing glucose into starch for plant storage)
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Biological washing powders
Enzymes are added and help remove stains for example lipase- for fatty acids
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Other cards in this set

Card 2

Front

The chemical reaction that breaks down nutrient molecules to release energy

Back

Respiration

Card 3

Front

The ability to detect changes in the environment

Back

Preview of the back of card 3

Card 4

Front

The process that make more of that same kind of organism

Back

Preview of the back of card 4

Card 5

Front

The removal of un-useful materials from an organism

Back

Preview of the back of card 5
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