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17 Cards in this Set
- Front
- Back
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What is the definition of metabolism?
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The biochemical processes happening within the cells of an organism which are necessary to maintain life
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What is anabolism?
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Using energy to build up complex structures
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What is catabolism?
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Breaking down molecules to yield energy
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What is a condensation reaction?
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Release of water
Requires energy e.g. amino acids -> proteins, monosaccharides -> polysaccharides |
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Oppositeo of condensation?
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Hydrolysis
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What is the ratio of carbon to hydrogen to oxygen in carbohydrates?
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1:2:1
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Does glycogen or cellulose contain alpha or beta links?
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Glycogen - alpha
Cellulose - beta |
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What is the structure of a TAG?
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1 glycerol + 3 fatty acids
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What is the structure of a phospholipid?
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1 glycerol + 2 fatty acids
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What is the structure of a steroid?
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4 cycloalkane rings
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What happens to TAG melting point as the saturation increases?
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It increases
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Which molecules are allowed across the blood-brain barrier?
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Small, hydrophobic molecules
Glucose (with carrier) |
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What are some functions of protein?
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Structure
Motor Signal/receptor molecules Catalysts Transport molecules Defence against infection |
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What is a committing enzyme?
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An enzyme that controls a part of a reaction that is effectively irreversible i.e. occurs at a branch point
Molecules are committed to pathway |
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What is a dehydrogenase?
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Removes hydrogen
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What is a kinase?
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Adds a phosphate
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What is an aminotransferase?
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Transfers an amine
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