Question 1

The series of chemical reactions that keep cells alive are known as metabolism.

Accepted Answer

A) True 
 B)False

Question 2

The most important feature that distinguishes one DNA molecule from another is (are)

Accepted Answer

A) the type of phosphate bonds. 
B) the type of sugar in each molecule. 
C) the order of the bases attached to the sugar phosphate backbone. 
D) all of the above features 
A) the type of phosphate bonds. 
B) the type of sugar in each molecule. 
C) the order of the bases attached to the sugar phosphate backbone. 
D) all of the above features

Question 3

A fatty acid is determined to have 12 carbon atoms.This fatty acid is probably from a(n)

Accepted Answer

A) synthetic source. 
B) natural source. 
C) plant. 
D) animal. 
A) synthetic source. 
B) natural source. 
C) plant. 
D) animal.

Question 4

The main difference between starch and glycogen is that starch has alpha (α)linkages between glucose units while glycogen has beta (β)linkages.

Accepted Answer

A) True 
 B)False

Question 5

In a sample of DNA,the amount of A will be equal to the amount of G.

Accepted Answer

A) True 
 B)False

Question 6

How does hydrogen bonding influence the structure of proteins?

Accepted Answer

Hydrogen bonding plays a crucial role in

Question 7

The RNA molecule that carries the information that determines the sequence of amino acids in a protein is mRNA.

Accepted Answer

A) True 
 B)False

Question 8

Which of the following elements is NOT found in carbohydrates?

Accepted Answer

A) hydrogen 
B) oxygen 
C) carbon 
D) sulfur 
A) hydrogen 
B) oxygen 
C) carbon 
D) sulfur

Question 9

Worldwide production of enzymes is worth more than $20 billion per year.

Accepted Answer

A) True 
 B)False

Question 10

Proteins are composed of long chains of ________.

Accepted Answer

The answer of Proteins are composed of long chains of...

Question 11

The primary chemical for the storage of energy in plants is

Accepted Answer

A) carbohydrate. 
B) protein. 
C) cellulose. 
D) nucleic acid. 
A) carbohydrate. 
B) protein. 
C) cellulose. 
D) nucleic acid.

Question 12

Which of the following would have the lowest iodine number?

Accepted Answer

A) butter 
B) corn oil 
C) peanut oil 
D) sunflower oil 
A) butter 
B) corn oil 
C) peanut oil 
D) sunflower oil

Question 13

Iodine number is a measure of

Accepted Answer

A) the number of iodine atoms in a carbohydrate. 
B) the number of iodine atoms in a fat. 
C) the number of iodine atoms in a protein. 
D) the degree of unsaturation of a fat. 
A) the number of iodine atoms in a carbohydrate. 
B) the number of iodine atoms in a fat. 
C) the number of iodine atoms in a protein. 
D) the degree of unsaturation of a fat.

Question 14

Proteins are

Accepted Answer

A) polyamides. 
B) polysaccharides. 
C) polysulfides. 
D) polyamines. 
A) polyamides. 
B) polysaccharides. 
C) polysulfides. 
D) polyamines.

Question 15

Animal starch is called

Accepted Answer

A) amylose. 
B) amylopectin. 
C) cellulose. 
D) glycogen. 
A) amylose. 
B) amylopectin. 
C) cellulose. 
D) glycogen.

Question 16

What functional group(s)is (are)contained in an amino acid?

Accepted Answer

A) -NH₂ 
B) -C=O 
C) -COOH 
D) both -NH₂ and -COOH 
A) -NH₂ 
B) -C=O 
C) -COOH 
D) both -NH₂ and -COOH

Question 17

The sugar in the nucleotides of DNA is

Accepted Answer

A) glucose. 
B) lactose. 
C) sucrose. 
D) deoxyribose. 
A) glucose. 
B) lactose. 
C) sucrose. 
D) deoxyribose.

Question 18

The name carbohydrate reflects

Accepted Answer

A) the ratio of carbon to hydrogen in the molecule. 
B) the ratio of carbonyl groups to total carbon content. 
C) the ratio of carbon to the combined ratio of "hydrogen to oxygen." 
D) the ratio of carbon to oxygen. 
A) the ratio of carbon to hydrogen in the molecule. 
B) the ratio of carbonyl groups to total carbon content. 
C) the ratio of carbon to the combined ratio of "hydrogen to oxygen." 
D) the ratio of carbon to oxygen.

Question 19

The glucose units in starch are joined by ________ linkages,while those in cellulose are joined by ________ linkages.

Accepted Answer

The answer of The glucose units in starch are joined...

Question 20

Which of the following is a monosaccharide?

Accepted Answer

A) fructose 
B) sucrose 
C) starch 
D) amylose 
A) fructose 
B) sucrose 
C) starch 
D) amylose

Exam 16: Biochemistry

The series of chemical reactions that keep cells alive are known as metabolism.

The most important feature that distinguishes one DNA molecule from another is (are)

A fatty acid is determined to have 12 carbon atoms.This fatty acid is probably from a(n)

The main difference between starch and glycogen is that starch has alpha (α)linkages between glucose units while glycogen has beta (β)linkages.

In a sample of DNA,the amount of A will be equal to the amount of G.

How does hydrogen bonding influence the structure of proteins?

The RNA molecule that carries the information that determines the sequence of amino acids in a protein is mRNA.

Which of the following elements is NOT found in carbohydrates?

Worldwide production of enzymes is worth more than $20 billion per year.

Proteins are composed of long chains of ________.

The primary chemical for the storage of energy in plants is

Which of the following would have the lowest iodine number?

Iodine number is a measure of

Proteins are

Animal starch is called

What functional group(s)is (are)contained in an amino acid?

The sugar in the nucleotides of DNA is

The name carbohydrate reflects

The glucose units in starch are joined by ________ linkages,while those in cellulose are joined by ________ linkages.

Which of the following is a monosaccharide?

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The glucose units in starch are joined by linkages,while those in cellulose are joined by linkages.