677753
Description
Flashcards by Jessica Burton, updated more than 1 year ago
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Created by Jessica Burton
over 12 years ago
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| Question | Answer |
| Basic structure of an amino acid? |
Image:
amino_acid.gif (image/gif)
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| Where does translation take place? | At the ribosomes in the cytoplasm |
| What is a) Diastole b) Systole | a) relaxed b) contract |
| Whats the difference between starch and glycogen? | Starch: storage, plants, insoluble, 1-4 and 1-6 Glycogen: energy, animals, insoluble,1-4 and 1-6 |
| Give one reason why a person might overestimate the risk of developing CVD? | E.g. knew someone who smoked and dies from CVD, therefore believing if you smoked you will die from CVD |
| What bonds join fatty acids to glycerol? | Ester bonds |
| Why does HBP increase the risk of CVD? | Increase risk of damage to artery walls -> increase risk of atheroma -> CVD |
| Explain ventricular systole... | Atria relaxed, ventricles contract, pressure increase, AV valves shut, SL valves open |
| Describe how atheroma forms... | Damaged artery -> fatty acids build up -> hardens = fibrous plaque |
| Why is the left ventricle wall more muscular than the right? | Pumps blood to the body |
| What is the role of fibrin in the blood clotting process? | Fibrin tangle together to form a mesh in which red blood cells get caught in |
| What's the structure of membranes? | Bilayer - phospholipids, proteins and carbohydrates |
| How does endocytosis work? | A cell surrounds a substance with a section of its cell membrane. Pinches off and forms a vesicle inside the cell |
| How does exocytosis work? | Vesicle pinches off sacs and moves towards the cell membrane. Fuses with the cell membrane and releases their content outside the cell |
| Where does transcription take place? | In the nucleus |
| What are mutations? | Changes to a base sequence of DNA |
| Difference between dominant and recessive? | Dominant appears when theres only one copy, where recessive needs two |
| What is mono-hybrid inheritance? | Inheritance of a single characteristic by different alleles |
| What does alcohol do to cell permeability? | Higher the concentration the more permeable because it breaks down lipids |
| Whats a micelle? | Hydrophilic heads point towards the outside and hydrophobic tails point inside (emulsion) |
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