B2 Key words

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  • Created by: Roxiss98
  • Created on: 11-03-15 19:43
Enzymes
Proteins which act as biological catalyst.
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Catalyst
A substance which increases the rate of reaction without being changed or used up.
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Proteins
Proteins are made up of amino acids.
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Digestion
The breakdown of large, insoluble molecules into smaller, soluble molecules.
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The lock-and-key theory
The active site maches the shape of the substrate.
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Aerobic respiration
The chemical reaction that releases energy from glucose when oxygen is available.
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Anaerobic respiration
An incompile breakdown of glucose. Anaerobic respiration respire without oxygen.
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Cramp
A build up of lactic acid that causes sharp pain.
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Oxygen debt
Extra oxygen needed to oxidise lactic acid into carbon dioxide and water.
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Nucleus
Controls the cell's activities
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Cytoplasm
Where chemical reactions occur
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Cell membrane
Controls the movement of materials in and out of the cell
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Mitochondria
Produces energy. This is when energy is released during aerobic respiration.
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Ribosomes
Protein synthesis
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Cell wall
Shapes/supports/protects the cell. It is made of cellulose.
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Chloroplasts
Contain chlorophyll for photosynthesis; they absorb light energy to make food
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Vacuole
Contains sap.
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Diffusion
The movement of particles from high to low concentration.
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Muscle tissue
Contracts to bring about movement
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Glandulat tissue
Produces substances such as enzymes or hormones
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Epithelial tissue
Covers some parts of the body
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Epidermal tissue
Covers the plant
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Mesophyll
Can photosynthesise
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Xylem and phloem
Transport substances (water and glucose) around the plant
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Mitosis
The type of cell division that produces identical new cells.
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Meiosis
Sexual reproduction that ocurrs in gametes
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Extinction
A species which once existed has completely died out.
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Differentiation
The process be which cells become specialised for a particular function.
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Organ system
A group of organs working together to carry out a particular function.
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Limiting factors
Something that stops photosynthesis from happening any faster.
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Quodrat
A square frame used to measure the distribution of organisms.
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Dominant
Shown in organisms heterozygous for that trait
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Recessive
Not shown in organisms heterozygous for that trait
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Genotype
The alleles that an individual contains
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Phenotype
The actual characteristics of an individual
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Heterozygous
Having two different alleles for a gene
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Homozygous
Having two identical alleles for a gene
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Other cards in this set

Card 2

Front

A substance which increases the rate of reaction without being changed or used up.

Back

Catalyst

Card 3

Front

Proteins are made up of amino acids.

Back

Preview of the back of card 3

Card 4

Front

The breakdown of large, insoluble molecules into smaller, soluble molecules.

Back

Preview of the back of card 4

Card 5

Front

The active site maches the shape of the substrate.

Back

Preview of the back of card 5
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