Question 1

Amino acids frequently become joined by:

Accepted Answer

A)  peptide bonds. 
B)  catabolic reactions. 
C)  atrophic reactions. 
D)  all of the above. 
A)  peptide bonds. 
B)  catabolic reactions. 
C)  atrophic reactions. 
D)  all of the above.

Question 2

The quaternary structure of a protein contains more than one polypeptide chain.

Accepted Answer

A) True 
 B)False

Question 3

The study of metabolism includes examination of:

Accepted Answer

A)  catabolism. 
B)  anabolism. 
C)  ATP requirements. 
D)  all of the above. 
A)  catabolism. 
B)  anabolism. 
C)  ATP requirements. 
D)  all of the above.

Question 4

Fats, steroids, and prostaglandins are all considered lipids.

Accepted Answer

A) True 
 B)False

Question 5

The type of lipoprotein associated with "bad" cholesterol and the production of atherosclerotic changes in blood vessels is:

Accepted Answer

A)  HDL. 
B)  LDL. 
C)  VHDL. 
D)  none of the above. 
A)  HDL. 
B)  LDL. 
C)  VHDL. 
D)  none of the above.

Question 6

The amino group in an amino acid is:

Accepted Answer

A)  NH3+. 
B)  COO-. 
C)  symbolized by the letter R. 
D)  SO2. 
A)  NH3+. 
B)  COO-. 
C)  symbolized by the letter R. 
D)  SO2.

Question 7

When ATP is in short supply, muscles can use creatine phosphate for extra energy.

Accepted Answer

A) True 
 B)False

Question 8

Explain the different functions performed by RNA in the cell.

Accepted Answer

RNA, or ribonucleic acid, plays several

Question 9

If one side of a DNA molecule is CCTAGGC, the opposite side of the molecule would be CCTAGGC.

Accepted Answer

A) True 
 B)False

Question 10

Nucleotides are used to make only RNA or DNA molecules.

Accepted Answer

A) True 
 B)False

Question 11

The body uses the steroid cholesterol to make hormones.

Accepted Answer

A) True 
 B)False

Question 12

When two amino acids are joined, a peptide bond is formed and an H⁺ ion is released.

Accepted Answer

A) True 
 B)False

Question 13

Proteins are the most abundant of the carbon-containing compounds in the body.

Accepted Answer

A) True 
 B)False

Question 14

Which of the following is not true of both triglycerides and phospholipids?

Accepted Answer

A)  They both contain glycerol. 
B)  They both contain fatty acids. 
C)  They both contain a hydrophobic and hydrophilic end. 
D)  All of the above are true of both triglycerides and phospholipids. 
A)  They both contain glycerol. 
B)  They both contain fatty acids. 
C)  They both contain a hydrophobic and hydrophilic end. 
D)  All of the above are true of both triglycerides and phospholipids.

Question 15

Match each term to its corresponding descriptive phrase.
-Substance composed of a glycerol molecule and three fatty acid molecules

Accepted Answer

A) RNA 
B) DNA 
C) Carbohydrate 
D) Fat 
E) Steroid
F)Protein
G)Prostaglandins
H)ATP 
A) RNA 
B) DNA 
C) Carbohydrate 
D) Fat 
E) Steroid
F)Protein
G)Prostaglandins
H)ATP

Question 16

The ability of proteins to perform their function depends on their shape.

Accepted Answer

A) True 
 B)False

Question 17

The basic building blocks of fats are:

Accepted Answer

A)  monosaccharides. 
B)  disaccharides. 
C)  amino acids. 
D)  fatty acids and glycerol. 
A)  monosaccharides. 
B)  disaccharides. 
C)  amino acids. 
D)  fatty acids and glycerol.

Question 18

A sucrose molecule is formed by the synthesis reaction between glucose and fructose.

Accepted Answer

A) True 
 B)False

Question 19

A structural lipid found in the cell membrane is a:

Accepted Answer

A)  triglyceride. 
B)  phospholipid. 
C)  steroid. 
D)  Both B and C are correct. 
A)  triglyceride. 
B)  phospholipid. 
C)  steroid. 
D)  Both B and C are correct.

Question 20

The element that is present in all proteins but not in carbohydrates is:

Accepted Answer

A)  carbon. 
B)  hydrogen. 
C)  oxygen. 
D)  nitrogen. 
A)  carbon. 
B)  hydrogen. 
C)  oxygen. 
D)  nitrogen.

Exam 4: Biomolecules

Amino acids frequently become joined by:

The quaternary structure of a protein contains more than one polypeptide chain.

The study of metabolism includes examination of:

Fats, steroids, and prostaglandins are all considered lipids.

The type of lipoprotein associated with "bad" cholesterol and the production of atherosclerotic changes in blood vessels is:

The amino group in an amino acid is:

When ATP is in short supply, muscles can use creatine phosphate for extra energy.

Explain the different functions performed by RNA in the cell.

If one side of a DNA molecule is CCTAGGC, the opposite side of the molecule would be CCTAGGC.

Nucleotides are used to make only RNA or DNA molecules.

The body uses the steroid cholesterol to make hormones.

When two amino acids are joined, a peptide bond is formed and an H⁺ ion is released.

Proteins are the most abundant of the carbon-containing compounds in the body.

Which of the following is not true of both triglycerides and phospholipids?

Match each term to its corresponding descriptive phrase. -Substance composed of a glycerol molecule and three fatty acid molecules

The ability of proteins to perform their function depends on their shape.

The basic building blocks of fats are:

A sucrose molecule is formed by the synthesis reaction between glucose and fructose.

A structural lipid found in the cell membrane is a:

The element that is present in all proteins but not in carbohydrates is:

Organization of the Body

Homeostasis

Chemical Basis of Life

Cell Structure

Cell Function

Cell Growth and Development

Introduction to Tissues

Tissue Types

Skin

Skeletal Tissues

Axial Skeleton

Appendicular Skeleton

Articulations

Axial Muscles

Appendicular Muscles

Muscle Contraction

Nervous System Cells

Nerve Signaling

Central Nervous System

Peripheral Nervous System

Autonomic Nervous System

General Senses

Special Senses

Endocrine Regulation

Endocrine Glands

Blood

Heart

Blood Vessels

Circulation of the Blood

Lymphatic System

Innate Immunity

Adaptive Immunity

Stress

Respiratory Tract

Ventilation

Gas Exchange & Transport

Upper Digestive Tract

Lower Digestive Tract

Digestion and Absorption

Nutrition and Metabolism

Urinary System

Fluid and Electrolyte Balance

Acid Base Balance

Male Reproductive System

Female Reproductive System

Growth and Development

Genetics and Heredity

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