AQA AS Biology Unit 1 Flashcards

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Flashcards on AQA AS Biology Unit 1 Flashcards, created by jamie_m on 24/02/2015.
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Flashcards by jamie_m, updated more than 1 year ago
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Created by jamie_m about 9 years ago
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Question Answer
Stages in Phagocytosis 1. Phagocyte recognises the pathogen 2. cytoplasm flows around, engulfing the pathogen 3. pathogen is taken into the phagocyte in a phagosome 4. lysosomes move towards the phagosome 5. lysosomes fuse with the phagosome, releasing enzymes 6. enzymes digest the pathogen
Why are vaccines effective? They stimulate the development of memory cells
What does cholera bacteria do? the toxin causes chloride ions to move into the lumen this causes the water potential to drop and water moves out by osmosis
Proteins contain only CHONS contain H-bonds within the molecule are polymers
Polysaccharides contain CHO only do not have H bonds within the molecule are polymers
Triglycerides contain CHOP only do not have H bonds within the molecule are not polymers
Phospholipids contain CHOP only do not have H bonds within the molecule are not polymers
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