BIOCHEMISTRY QUESTIONS
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BIOCHEMISTRY QUESTIONS |
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| Glycogen, cellulose, polypeptides and phospholipids all have large molecules. | |||
| (a) | Which of these molecules is | ||
| (i) | not found in a plant cell; | ||
| (1) | |||
| (ii) | used primarily as a structural molecule? | ||
| (1) | |||
| (b) | Give one element found in polypeptides that is not present in those of glycogen, cellulose or phospholipids. | ||
| (1) | |||
| The diagram represents a phospholipid molecule | |||
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| (c) | Name the following parts of the molecule | ||
| (i) | A | ||
| (1) | |||
| (ii) | B | ||
| (1) | |||
| (iii) | C | ||
| (1) | |||
| (d) | Phospholipids are found in cell membranes. Proteins are also found in cell membranes, give two functions of proteins in cell membranes | ||
| (2) | |||
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