AP Biology- Ch. 3-5 Test(#26-50)

49+50 involve information

49) A- polysaccharide 50) C- C60H102O51

Which bond is closest to the amino terminus of the molecule? (Picture)

A) A

Polysaccharides, triacylglycerides, and proteins are similar in that they

A) are synthesized from monomers by the process of hydrolysis

All of the following are polysaccharides except

A) lactose

The enzyme amylase can break glycosidic linkages between glucose monomers only if monomers are in alpha form. Which of the following could amylase break down?

A) starch

Choose the term that correctly describes the relationship between these two sugar molecules.

A) structural isomers

Which action could produce a carbonyl group? (Picture)

A) the replacement of the -OH of a carboxyl group with hydrogen

Which of the following is true of both starch and cellulose?

A) they are both polymers of glucose

Which of the following molecules act as building blocks (monomers) of polypeptides?

B) 2,7, and 8

A fat (or triacylglycerol) would be formed as a result of a dehydration reaction between

B) three molecules of 9 and one molecule of 10

How many molecules of water are needed to completely hydrolyze a polymer that is 11 monomers long?

C) 10

Which molecule is glycerol?

C) 10

Which of the following molecules could be joined together by a peptide bond as a result of a dehydration reaction?

C) 7 and 8

Why are humans sex hormones considered to be lipids?

C) They are made of fatty acids

Which of the following statements is true regarding the molecule illustrated in Figure 5.3? (Picture)

C) molecules of this type are usually liquid at room temperature

Which of the following combinations could be linked together to form a nucleotide?

D) 11,12,13

What molecule above contains a carboxyl group? (Picture)

D) D

Which of the following statements is/are true regarding the chemical interaction illustrated in Figure 5.5? (Picture)

D) it is a hydrolysis reaction and it results in a peptide bond

Which of the following statements is true regarding the molecule illustrated in Figure 5.2? (Picture)

D) it is a saturated fatty acid and a diet rich in this molecule may contribute to atherosclerosis

Which of the following is an example of hydrolysis?

D) the reaction of a day, forming glycerol and fatty acids with the consumption of water

Which of the following molecules contain an aldehyde type of carbonyl functional group? (Picture)

E) 1 and 4

Which of the following molecules contains a glycosidic linkage type of covalent bond?

E) 15

Which molecule is a saturated fatty acid?

E) 9

Which of the following statements is false?

E) Molecules 15 and 14 could be joined together to form a polysaccharide