Question 4 Which sequence of events leads to protein secretion? Events: 1. Glyco

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Question 4
Which sequence of events leads to protein secretion?

Events:
1. Glycosylation and tagging in Golgi apparatus.
2. Folding and glycosylation in rough endoplasmic reticulum.
3. Fusion of secretory vesicles with plasma membrane and release of secreted proteins.
4. Translocation into rough endoplasmic reticulum.
5. Transfer from rough endoplasmic reticulum to Golgi apparatus in transport vesicles.
6. Export from Golgi apparatus in secretory vesicles.
7. Synthesis by ribosomes.

Select one:
a. 4, 7, 1, 5, 3, 2, 6
b. 2, 7, 3, 5, 4, 1, 6
c. 7, 4, 2, 5, 1, 6, 3
d. 2, 3, 6, 7, 4, 5, 1
e. 2, 5, 3, 7, 6, 4, 1

Question 5
Meiosis results in:

Select one:
a. Production of gametes
b. Reduction in the number of chromosomes
c. Introduction of variation
d. all of the above

Question 6
In the presence of oxygen, all cells synthesize ATP via the process of glycolysis. Many cells also can metabolize pyruvate if oxygen is not present, via the process of:

Select one:
a. fermentation
b. aerobic respiration
c. oxidative phosphorylation
d. electron transport
e. photophosphorylation

Explanation / Answer

(4)c.7,4,2,5,1,6,3

(5)d.all of the above

Meosis is reductional division which divides diploid cells into haploid one.As gametes are haploid they are formed as a result of meosis.

(6)a.fermentation

The cells perform fermentation in anaerobic conditions producing alcohol,gases and organic materials as by products.

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