Biology A Guide To The Natural World 5th Edition By David Krogh -Test Bank

4) Alpha helices and beta pleated sheets are examples of: A) secondary structure.

B) primary structure.

C) tertiary structure.

D) quaternary structure.

Answer: A Explanation: A) B) C) D)

4)

5) The monomers of polysaccharides are: A) amino acids.

B) lipids.

C) steroids.

D) nucleotides.

E) sugars.

Answer: E Explanation: A) B) C) D) E)

6) The monomers of polysaccharides are: A) amino acids.

B) nucleotides.

C) simple sugars.

D) fatty acids.

Answer: C Explanation: A) B) C) D)

7) Which of the following is the indigestible (at least for humans) glucose polysaccharide that is found in plants? A) starch

B) glycogen

C) chitin

D) cellulose

Answer: D Explanation: A) B) C) D)

5)

6)

7)

28) Saturated fats are usually found in: A) canola oil.

B) a beef steak.

C) safflower oil.

D) both coconut oil and a beef steak.

E) coconut oil.

Answer: D Explanation: A) B) C) D) E)

9) The difference between one amino acid and another is the: A) type of R group each contains.

B) difference in the chemical properties of their amino and carboxyl groups.

C) way their amino groups bond with carboxyl groups.

D) number of amino and carboxyl groups each contains.

E) number of R groups each contains.

Answer: A Explanation: A) B) C) D) E)

10) Every protein has a unique shape and function because: A) each protein has a unique sequence of nucleotides.

B) the number of nitrogen atoms in each amino acid differs.

C) each protein has a unique sequence of amino acids.

D) the bonds between the amino acids vary from protein to protein.

Answer: C Explanation: A) B) C) D)

11) What do wax and testosterone have in common? A) They are both lipids.

B) They are both hormones.

C) They are both steroids.

D) They are both proteins.

Answer: A Explanation: A) B) C) D)