Which of the following is the smallest? Ribose Starch Sucrose Lactose Question 6

Question

Which of the following is the smallest?

Ribose

Starch

Sucrose

Lactose

Question 6

Select one answer.

10 points

Which polysaccharide is most similar to chitin?

Glycogen

Cellulose

Glucose

Starch

Question 7

Select one answer.

10 points

This carbohydrate is produced by animals for energy storage

Cellulose

Glycogen

Starch

Chitin

Question 8

Select all that apply.

10 points

Which of the following are functions of carbohydrates? Select all that apply.

Energy storage

Structure

Cell recognition

Cell signaling

None of these choices

Explanation / Answer

Which of the following is the smallest?

Answer: Ribose (a carbohydrate with 5 carbons)

Sucrose and lactose are disaccharides, while starch is a polysaccharide.

Which polysaccharide is most similar to chitin?

Answer: Cellulose

Cellulose and chitin both have beta 1,4-glycosidic linkages.

This carbohydrate is produced by animals for energy storage:

Answer: Glycogen

When there is an excess of glucose in the bloodstream, the glucose is converted to glycogen in the liver via glycogenesis, as a way to store glucose.

Which of the following are functions of carbohydrates?

Answers: Energy storage, Structure, Cell recognition, and Cell signaling.

Energy storage - glycogen, structure - part of a cell membrane, cell recognition- receptors, cell signalling-N glycans in cell signaling.

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