Question 1

Which of the following is NOT a function of proteins in the body?

Accepted Answer

A) carriers for membrane transport 
B) enzymes 
C) compose genes 
D) receptors for regulator molecules 
A) carriers for membrane transport 
B) enzymes 
C) compose genes 
D) receptors for regulator molecules

Question 2

Carbon atoms form many organic molecules by forming polar covalent bonds with other carbon atoms.

Accepted Answer

A) True 
 B)False

Question 3

This group of organic compounds acts as surfactants:

Accepted Answer

A) carbohydrates 
B) phospholipids 
C) nucleic acids 
D) prostaglandins 
A) carbohydrates 
B) phospholipids 
C) nucleic acids 
D) prostaglandins

Question 4

The subunit of protein is the

Accepted Answer

A) fatty acid. 
B) nucleic acid. 
C) amino acid. 
D) carboxylic aciD. 
A) fatty acid. 
B) nucleic acid. 
C) amino acid. 
D) carboxylic aciD.

Question 5

The _______________ electrons are the outermost electrons of an atom.

Accepted Answer

A) kernel 
B) valence 
C) atomic 
D) anion 
A) kernel 
B) valence 
C) atomic 
D) anion

Question 6

In order to maintain proper health,total dietary fat intake should not exceed _______________ of total dietary energy intake.

Accepted Answer

A) 10% 
B) 20% 
C) 30% 
D) 40% 
A) 10% 
B) 20% 
C) 30% 
D) 40%

Question 7

Which of the following is NOT true of unsaturated fatty acids?

Accepted Answer

A) They contain one or more double bonds. 
B) They are usually liquid at room temperature. 
C) They contain a maximal number of hydrogen atoms. 
D) They contain less than the maximum number of hydrogen atoms. 
A) They contain one or more double bonds. 
B) They are usually liquid at room temperature. 
C) They contain a maximal number of hydrogen atoms. 
D) They contain less than the maximum number of hydrogen atoms.

Question 8

Atoms sharing a pair of electrons form covalent bonds.

Accepted Answer

A) True 
 B)False

Question 9

The human genome refers to

Accepted Answer

A) all living human beings. 
B) the total variations in human cells. 
C) all of the genes in the cell. 
D) human mutations caused by gene defects. 
A) all living human beings. 
B) the total variations in human cells. 
C) all of the genes in the cell. 
D) human mutations caused by gene defects.

Question 10

Fructose is a ketone.

Accepted Answer

A) True 
 B)False

Question 11

An atom with 5 protons,5 neutrons,and 6 electrons would have a net charge of

Accepted Answer

A) -1. 
B) -2. 
C) +1. 
D) +2. 
A) -1. 
B) -2. 
C) +1. 
D) +2.

Question 12

The base that is NOT found in RNA is

Accepted Answer

A) thymine. 
B) guanine. 
C) cytosine. 
D) uracil. 
A) thymine. 
B) guanine. 
C) cytosine. 
D) uracil.

Question 13

Covalent bonds are formed between monosaccharides through dehydration synthesis.

Accepted Answer

A) True 
 B)False

Question 14

All amino acids contain carboxyl and amino groups.

Accepted Answer

A) True 
 B)False

Question 15

An ionized organic acid is designated with the suffix - ate.

Accepted Answer

A) True 
 B)False

Question 16

When an atom loses one or more electrons,it

Accepted Answer

A) becomes positively charged. 
B) becomes negatively charged. 
C) is called an anion. 
D) has no change in its charge. 
A) becomes positively charged. 
B) becomes negatively charged. 
C) is called an anion. 
D) has no change in its charge.

Question 17

Acids release hydrogen ions into solutions.

Accepted Answer

A) True 
 B)False

Question 18

The pH of a solution increases as the _______________ ion concentration decreases.

Accepted Answer

A) hydrogen 
B) hydroxide 
C) bicarbonate 
D) sodium 
A) hydrogen 
B) hydroxide 
C) bicarbonate 
D) sodium

Question 19

A protein that is combined with another type of molecule like a carbohydrate is

Accepted Answer

A) conjugated. 
B) denatured. 
C) hydrolyzed. 
D) complementeD. 
A) conjugated. 
B) denatured. 
C) hydrolyzed. 
D) complementeD.

Question 20

Which of the following is NOT a derivative of cholesterol?

Accepted Answer

A) corticosteroids 
B) vitamin D3 
C) aldosterone 
D) lecithin 
A) corticosteroids 
B) vitamin D3 
C) aldosterone 
D) lecithin

Which of the following is NOT a function of proteins in the body?

Carbon atoms form many organic molecules by forming polar covalent bonds with other carbon atoms.

This group of organic compounds acts as surfactants:

The subunit of protein is the

The _______________ electrons are the outermost electrons of an atom.

In order to maintain proper health,total dietary fat intake should not exceed _______________ of total dietary energy intake.

Which of the following is NOT true of unsaturated fatty acids?

Atoms sharing a pair of electrons form covalent bonds.

The human genome refers to

Fructose is a ketone.

An atom with 5 protons,5 neutrons,and 6 electrons would have a net charge of

The base that is NOT found in RNA is

Covalent bonds are formed between monosaccharides through dehydration synthesis.

All amino acids contain carboxyl and amino groups.

An ionized organic acid is designated with the suffix - ate.

When an atom loses one or more electrons,it

Acids release hydrogen ions into solutions.

The pH of a solution increases as the _______________ ion concentration decreases.

A protein that is combined with another type of molecule like a carbohydrate is

Which of the following is NOT a derivative of cholesterol?

The Study of Body Function

Cell Structure and Genetic Control

Enzymes and Energy

Cell Respiration and Metabolism

Interactions Between Cells and the Extracellular Environment

The Nervous System: Neurons and Synapses

The Central Nervous System

The Autonomic Nervous System

Sensory Physiology

Endocrine Glands: Secretion and Action of Hormones

Muscle: Mechanisms of Contraction and Neural Control

Blood,Heart and Circulation

Cardiac Output,Blood Flow,and Blood Pressure

The Immune System

Respiratory Physiology

Physiology of the Kidneys

The Digestive System

Regulation and Metabolism

Reproduction

Filters

Exam 2: Chemical Composition of the Body

Which of the following is NOT a function of proteins in the body?

Carbon atoms form many organic molecules by forming polar covalent bonds with other carbon atoms.

This group of organic compounds acts as surfactants:

The subunit of protein is the

The _______________ electrons are the outermost electrons of an atom.

In order to maintain proper health,total dietary fat intake should not exceed _______________ of total dietary energy intake.

Which of the following is NOT true of unsaturated fatty acids?

Atoms sharing a pair of electrons form covalent bonds.

The human genome refers to

Fructose is a ketone.

An atom with 5 protons,5 neutrons,and 6 electrons would have a net charge of

The base that is NOT found in RNA is

Covalent bonds are formed between monosaccharides through dehydration synthesis.

All amino acids contain carboxyl and amino groups.

An ionized organic acid is designated with the suffix - ate.

When an atom loses one or more electrons,it

Acids release hydrogen ions into solutions.

The pH of a solution increases as the _______________ ion concentration decreases.

A protein that is combined with another type of molecule like a carbohydrate is

Which of the following is NOT a derivative of cholesterol?

The Study of Body Function

Cell Structure and Genetic Control

Enzymes and Energy

Cell Respiration and Metabolism

Interactions Between Cells and the Extracellular Environment

The Nervous System: Neurons and Synapses

The Central Nervous System

The Autonomic Nervous System

Sensory Physiology

Endocrine Glands: Secretion and Action of Hormones

Muscle: Mechanisms of Contraction and Neural Control

Blood,Heart and Circulation

Cardiac Output,Blood Flow,and Blood Pressure

The Immune System

Respiratory Physiology

Physiology of the Kidneys

The Digestive System

Regulation and Metabolism

Reproduction

Filters