1.Comment how yeast manage cellular levels of nitrogen 2.Where would expect to f

Question

1.Comment how yeast manage cellular levels of nitrogen

2.Where would expect to find these glycerophospholipids in plants

3.Which of the following is / are a common precursor(s) for plant sterols and terpenoids?

a. 3-hydroxy-3-methyl glutaryl CoA

b. Isopentyl diphosphate

c. Squalene

d. 3-hydroxy-3-methyl glutaryl CoA and Isopentyl diphosphate

e. 3-hydroxy-3-methyl glutaryl CoA, Isopentyl diphosphate and squalene

4. Enzymes that catalyse the synthesis of long chain fatty acids in plant cells:

a. Act as separate freely associated proteins

b. Are encoded by mitochondrial DNA

c. Are localised in the mitochondrial matrix

d. Act as part of a single polypeptide containing distinct enzyme activities

e. Have none of these characteristics

Explanation / Answer

2. Glycerophospholipids are the lipids located at cell membranes of plant cells, they are comparable to phospholipids in animal cell membranes and serve the same functions.

3. c. Squalene.

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