Question

1. a. what type of polysaccharide structure does glycogen have?

b. what is the advantage for having this structure? (2pts)

1. explain how do you can determine if a lipid is unsaturated, saturated or polyunsaturated? (2 pts)

unsaturated: the lipid chain is bent
saturated: the lipid chain is straight
polyunsaturated:

Explanation:

• Unsaturated lipids: Have one or more double bonds in their hydrocarbon chains. This causes kinks/bends in the chain (due to the cis - configuration of double bonds in natural unsaturated lipids), which prevents the molecules from packing tightly together.
• Saturated lipids: Have no double bonds in their hydrocarbon chains. The chains are straight (all single bonds allow free rotation around the carbon - carbon bonds in a way that can lead to a more linear structure), and the molecules can pack closely together.
• Polyunsaturated lipids: Have two or more double bonds in their hydrocarbon chains. So, they have multiple kinks/bends (each double bond can potentially cause a kink depending on its configuration), and they also cannot pack as tightly as saturated lipids.

Answer:

• Unsaturated: Lipid has one or more double bonds (causing kinks in the chain).
• Saturated: Lipid has no double bonds (chains are straight).
• Polyunsaturated: Lipid has two or more double bonds (multiple kinks in the chain).