Question 1

Which energy-releasing or energy-transferring molecule does not contain a nucleotide?

Accepted Answer

A)  FAD 
B)  Creatine phosphate 
C)  NAD 
D)  ATP 
A)  FAD 
B)  Creatine phosphate 
C)  NAD 
D)  ATP B

Question 2

Match each term to its corresponding descriptive phrase.
-Types of lipids that are called tissue hormones

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 G

Question 3

High-density lipoprotein (HDL) is also called the "bad" cholesterol.

Accepted Answer

A) True 
 B)False  False

Question 4

Glucose is a hexose, and ribose is a pentose.

Accepted Answer

A) True 
 B)False

Question 5

An example of a catabolic process is:

Accepted Answer

A)  hydrolysis. 
B)  dehydration synthesis. 
C)  formation of a peptide bond. 
D)  both B and C. 
A)  hydrolysis. 
B)  dehydration synthesis. 
C)  formation of a peptide bond. 
D)  both B and C.

Question 6

Peptide bonds join together molecules of:

Accepted Answer

A)  glycerol. 
B)  glucose. 
C)  amino acids. 
D)  water. 
A)  glycerol. 
B)  glucose. 
C)  amino acids. 
D)  water.

Question 7

Steroids are the only lipids that contain a ring structure.

Accepted Answer

A) True 
 B)False

Question 8

There are a total of 21 essential amino acids.

Accepted Answer

A) True 
 B)False

Question 9

Fats are composed of three fatty acids joined to a molecule of glycerol.

Accepted Answer

A) True 
 B)False

Question 10

Compare and contrast the structures of DNA and RNA.

Accepted Answer

DNA and RNA are both nucleic acids that

Question 11

DNA molecules are the largest molecules in the body.

Accepted Answer

A) True 
 B)False

Question 12

RNA never exists in a double-stranded form.

Accepted Answer

A) True 
 B)False

Question 13

Name and describe the structural levels of protein.

Accepted Answer

Proteins have four structural levels: pr

Question 14

RNA and DNA have the same pyrimidine bases but different purine bases.

Accepted Answer

A) True 
 B)False

Question 15

Enzymes that are exposed to high heat or low pH solutions lose their ability to function. What causes this to happen? Be specific.

Accepted Answer

Enzymes are biological catalysts that sp

Question 16

A magnesium atom has an atomic number of 12, an atomic mass of 25, and a +2 charge. This atom would contain _____ protons, _____ neutrons, and _____ electrons.

Accepted Answer

A)  12; 25; 2 
B)  12; 13; 14 
C)  12; 13; 10 
D)  Not enough information is given to answer the question. 
A)  12; 25; 2 
B)  12; 13; 14 
C)  12; 13; 10 
D)  Not enough information is given to answer the question.

Question 17

DNA:

Accepted Answer

A)  is a single strand of nucleotides. 
B)  contains the sugar ribose. 
C)  is a double-helix strand of nucleotides. 
D)  transports amino acids during protein synthesis. 
A)  is a single strand of nucleotides. 
B)  contains the sugar ribose. 
C)  is a double-helix strand of nucleotides. 
D)  transports amino acids during protein synthesis.

Question 18

Match each term to its corresponding descriptive phrase.
-Lipid found in sex hormone that is made up of four rings

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 19

The types of lipids found in sex hormones are:

Accepted Answer

A)  triglycerides. 
B)  phosphoglycerides. 
C)  steroids. 
D)  prostaglandins. 
A)  triglycerides. 
B)  phosphoglycerides. 
C)  steroids. 
D)  prostaglandins.

Question 20

Nonessential amino acids are rarely used in the making of proteins in the human body.

Accepted Answer

A) True 
 B)False

Exam 4: Biomolecules

Which energy-releasing or energy-transferring molecule does not contain a nucleotide?

Match each term to its corresponding descriptive phrase. -Types of lipids that are called tissue hormones

High-density lipoprotein (HDL) is also called the "bad" cholesterol.

Glucose is a hexose, and ribose is a pentose.

An example of a catabolic process is:

Peptide bonds join together molecules of:

Steroids are the only lipids that contain a ring structure.

There are a total of 21 essential amino acids.

Fats are composed of three fatty acids joined to a molecule of glycerol.

Compare and contrast the structures of DNA and RNA.

DNA molecules are the largest molecules in the body.

RNA never exists in a double-stranded form.

Name and describe the structural levels of protein.

RNA and DNA have the same pyrimidine bases but different purine bases.

Enzymes that are exposed to high heat or low pH solutions lose their ability to function. What causes this to happen? Be specific.

A magnesium atom has an atomic number of 12, an atomic mass of 25, and a +2 charge. This atom would contain _____ protons, _____ neutrons, and _____ electrons.

DNA:

Match each term to its corresponding descriptive phrase. -Lipid found in sex hormone that is made up of four rings

The types of lipids found in sex hormones are:

Nonessential amino acids are rarely used in the making of proteins in the human body.

Organization of the Body

Homeostasis

Chemical Basis of Life

Cell Structure

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Cell Growth and Development

Introduction to Tissues

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Filters

A magnesium atom has an atomic number of 12, an atomic mass of 25, and a ⁺² charge. This atom would contain ___ protons, _ neutrons, and ___ electrons.