Biology Unit 2
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- Created by: Lisa.Williams
- Created on: 29-05-17 21:46
A single celled organism
Yeast
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Cells that have no nucleus
Bacteria
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The spreading out of particles from an area of high concentration to an area of low concentration
Diffusion
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Cells adapted for photosynthesis
Palisade leaf cell
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Opens and closes for gas exchange
Guard cells
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Absorbs soluble food molecules
Small intestine
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Absorbs water from undigested food
Large intestine
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Produces bile
Liver
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Stores bile
Gall bladder
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Where most photosynthesis in a plant occurs
Mesophyll tissue
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Products of photosynthesis
Glucose and oxygen
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Organelle where photosynthesis happens
Chloroplast
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Water plant to test rate of photosynthesis
Canadian pondweed
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Controls light intensity
Bench lamp
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How plants store glucose in seeds
Lipids
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How many environmental factors affect the distribution of an organsism
Five
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Used to study the distribution of small organisms
Quadrats
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Total number of organisms/number of quadrats
Mean
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Mean number of organisms per m2*total area of habitat
Population size
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Used to study distribution of organisms along a line
Transect
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Results are repeatable and reproducible
Reliability
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A substance which increases the speed of a reaction without being used up in the reaction
Catalyst
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What enzymes are made up of
Proteins
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Pepsin works best at this pH
Two
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Converts starch into sugars
Amylase
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Converts proteins into amino acids
Protease
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Converts lipids into glycerol and fatty acids
Lipase
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Neutralises stomach acid and emulsifies fats
Bile
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Where bile is released after being stored
Small intestine
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What the stomach produces to kill bacteria and give the right pH for protease enzyme to work in
Hydrochloric acid
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Salivary glands produce this enzyme
Amylase
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The process of releasing energy from glucose which goes on in every cell
Respiration
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Type of respiration where oxygen is a reactant
Aerobic
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What is used during exercise in muscles
Glycogen
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Bad product of anaerobic respiration
Lactic acid
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What anaerobic respiration leads to
Oxygen debt
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Enzyme used to convert glucose syrup into fructose syrup
Isomerase
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An abbreviation for deoxyribonucleic acid
DNA
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Long molecules of DNA
Chromosomes
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A section of DNA
Gene
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When a cell reproduces itself by splitting to form two identical offsprings
Mitosis
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Reproduction that uses mitosis
Asexual
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Produces cells which have half the normal number of chromosomes
Meiosis
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Could be used to cure blood diseases or grow whole organs
Stem cells
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Show the possible genes of offsprings
Genetic diagrams
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Disorder caused by a recessive allele
Cystic fibrosis
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Disorder caused by a dominant allele
Polydactyly
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How many reasons can cause a species to become extinct
Six
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The development of a new species
Speciation
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Other cards in this set
Card 2
Front
Cells that have no nucleus
Back
Bacteria
Card 3
Front
The spreading out of particles from an area of high concentration to an area of low concentration
Back
Card 4
Front
Cells adapted for photosynthesis
Back
Card 5
Front
Opens and closes for gas exchange
Back
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