7 Which of the following molecules is used primarily for ene

7) Which of the following molecules is used primarily for energy storage?

a. cellulose

b. glycogen

c. glycoprotein

d. glycolipid

8) Which of the following items would you expect to have a highest content of amylose and amylopectin?

a. A piece of bread

b. A piece of wood

c. The exoskeleton of a beetle

d. A feather

9) The three molecules above are all triacylglycerides. Which one would you expect to have the highest melting temperature?

a) Molecule a

b) Molecule b

c) Molecule c

d) This depends on whether they are of plant or animal origin

10) In the fatty acid designation 16:1(7 ), what does the “7” stand for?

a) The position of the double bond in the carbon chain

b) The position of the carboxylic acid carbon

c) The number of double bonds

d) The number of fatty acid chains connected to the glycerol molecule backbone

11) The synthesis of the hormone prostaglandin E (involved in inflammation responses) is inhibited by common non-steroidal anti-inflammatory drugs like ibuprofen. This hormone is made from:

a) cholesterol

b) glycogen

c) a fatty acid

d) glucose

A feather a) H The three molecules above arean ilgivendes which one would vou expe have the highest melting temperature7

Solution

7. Glycogen

Glycogen is a polysaccharide of glucose that serves as a form of energy storage in humans, animals and fungi. The polysaccharide glycogen is the main storage form of glucose in the body.

8.  A piece of bread

largest source of starch is corn (maize) with other commonly used sources being wheat, potato, tapioca and rice.Starch consists of two types of molecules: the linear and helical amylose and the branched amylopectin. therefore bread having highest amount of Amylose and amylopectin in compare to other.

9. Molecule B

The more saturated, the less bends in the fatty acid chain and in figure we can see the b molecule is straight where as in a one chain is bended where as in c two chains are bended. so that means b molecule is more saturated which means higher melting tempreture.

10.

A. The position of the double bond in the carbon chain

11. a Fatty acid

Protaglandlin are derived enzymatically from fatty acids. Every prostaglandin contains 20 carbon atoms, including a 5-carbon ring. They are a subclass of eicosanoids and of the prostanoid class of fatty acid derivatives.