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43 Cards in this Set
- Front
- Back
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Controls the cells activities |
Nucleus |
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Where chemical reactions take place in a cell |
Cytoplasm |
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Controls the movement of materials in and out of the cell |
Cell membrane |
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Where aerobic respiration takes place |
Mitochondria |
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Where protein synthesis takes place |
Ribosomes |
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Made of cellulose for support |
Cell wall |
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Contain chlorophyll for photosynthesis, they absorb light |
Chloroplasts |
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Contains cell sap |
Vacuole |
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What's in an animal cell? |
Nucleus, cytoplasm, cell membrane, mitochondria and ribosomes |
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What's in a plant cell |
Nucleus, cytoplasm, cell membrane, mitochondria, ribosomes, cell wall, chloroplast and vacuole |
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What's in a bacteria cell |
Cell membrane, genetic material/chromosomes, cytoplasm, cell wall, slime capsule, plasmids, flagella |
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What's in a yeast cell |
Nucleus, cell wall, cytoplasm, cell membrane |
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Bacteria are_________ than animal and plant cells |
Smaller |
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What speeds up diffusion |
Surface area, and the difference in concentration |
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Difference in concentration in diffusion |
Concentration gradient |
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Animal tissues |
Muscle, glandular and epithelial |
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Plant tissues |
Epithermal, mesophyll, xylem and phloem |
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What does muscle tissue do |
Contract to bring movement |
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What does glandular tissue do |
Produce substances such and enzymes and hormones |
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What does epithellal tissue do |
Cover some parts of the body |
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What does epithermal tissue do |
Cover the plant |
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What does mesophyll do |
Can photosynthesise |
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What does xylem and phloem do |
Transport substances around the plant |
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Organs in the digestive system |
Stomach, liver, small intestine, large intestine and pancreas |
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Photosynthesis equation |
Carbon dioxide + water ----> glucose + oxygen |
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Photosynthesis process |
1) carbon dioxide is taken in by the leaves and water is taken in from the roots 2) chlorophyll in the chloroplasts traps light energy 3) the energy is used to convert carbon dioxide and water into glucose and oxygen |
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Test for starch |
Iodine turns starch patches on leaves to black |
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How to plants use glucose |
• converted into insoluble starch for storage •used for respiration •converted into fats and oils for storage •produce cellulose to strengthen cell walls • produce proteins |
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What affects photosynthesis |
Temperature, carbon dioxide and light levels |
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What are proteins made of |
Amino acids |
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What can proteins be |
•hormones •antibodies •catalysts •tissue |
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What are chemical reaction in cells controlled by |
Enzymes |
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What can enzymes do |
•build large molecules from smaller ones •change one molecule into another •break down large molecules into smaller ones |
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Factors which affect enzyme activity |
•heat •pH |
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Where is amylase produced |
Salivary glands, pancreas and small intestine |
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What does amylase do |
Catalyse the digestion of starch (carbohydrates) into sugars |
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Where is protease produced |
Stomach, pancreas and small intestine |
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What does protease do |
Catalyse the break down of proteins into amino acids |
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Where is lipase produced |
Pancreas and small intestine |
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What does lipase do |
Catalyse the breakdown of lipids (fats and oils) into fatty acids and glycerol |
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Where is bile produced |
Liver |
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Where is bile stored |
Gall bladder |
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What does bile do |
Neutralises stomach acids in the small intestine |
