Question 1

Sugar can be stored as fat,but fat cannot be stored (completely)as sugar.

Accepted Answer

A) True 
 B)False

Question 2

Cholesterol

Accepted Answer

A) Is slightly amphipathic 
B) Is a prominent lipid component of all membranes in a cell 
C) Allows the plasma membrane to form vesicles that deliver their contents to cell organelles 
D) Both is slightly amphipathic and is a prominent lipid component of all membranes in a cell are correct 
E) Both is slightly amphipathic and allows the plasma membrane to form vesicles that deliver their contents to cell organelles are correct 
A) Is slightly amphipathic 
B) Is a prominent lipid component of all membranes in a cell 
C) Allows the plasma membrane to form vesicles that deliver their contents to cell organelles 
D) Both is slightly amphipathic and is a prominent lipid component of all membranes in a cell are correct 
E) Both is slightly amphipathic and allows the plasma membrane to form vesicles that deliver their contents to cell organelles are correct

Question 3

Which of the following is not a product of glycolysis?

Accepted Answer

A) Carbon dioxide 
B) ATP 
C) Pyruvate 
D) NADH 
E) All of the choices are products of glycolysis 
A) Carbon dioxide 
B) ATP 
C) Pyruvate 
D) NADH 
E) All of the choices are products of glycolysis

Question 4

ATP is

Accepted Answer

A) A nucleotide 
B) A lipid 
C) An amino acid 
D) A carbohydrate 
E) A steroid 
A) A nucleotide 
B) A lipid 
C) An amino acid 
D) A carbohydrate 
E) A steroid

Question 5

In the Krebs cycle,an acetyl fragment is broken down to CO2 and H atoms.

Accepted Answer

A) True 
 B)False

Question 6

Proteins are broken down to amino acids by enzymes called transaminases.

Accepted Answer

A) True 
 B)False

Question 7

Lysosomes are organelles specialized for breaking down intracellular debris or malfunctioning parts of cells.

Accepted Answer

A) True 
 B)False

Question 8

The deletion of a single base in a gene would alter the structure of the gene's protein more than the substitution of one base for another.

Accepted Answer

A) True 
 B)False

Question 9

A cofactor may

Accepted Answer

A) Alter the conformation of an enzyme 
B) Be a metal such as iron 
C) Be a substrate in a catalyzed reaction 
D) Alter the conformation of an enzyme and be a metal such as iron 
E) All of the choices are correct 
A) Alter the conformation of an enzyme 
B) Be a metal such as iron 
C) Be a substrate in a catalyzed reaction 
D) Alter the conformation of an enzyme and be a metal such as iron 
E) All of the choices are correct

Question 10

Most proteins that are secreted from cells are glycoproteins.

Accepted Answer

A) True 
 B)False

Question 11

The enzyme carbonic anhydrase catalyzes the catabolism of H2CO3 to H2O and CO2.

Accepted Answer

A) True 
 B)False

Question 12

The site where most of the ATP is generated in a cell is the

Accepted Answer

A) Nucleus 
B) Plasma membrane 
C) Endoplasmic reticulum 
D) Golgi apparatus 
E) Mitochondria 
A) Nucleus 
B) Plasma membrane 
C) Endoplasmic reticulum 
D) Golgi apparatus 
E) Mitochondria

Question 13

Which of the following is not true of the cytoskeleton?

Accepted Answer

A) It refers to the cellular components of bone 
B) It refers to a network of cytoplasmic filaments 
C) It is important for cellular movement 
D) It helps to determine a cell's shape 
E) None of the choices are false 
A) It refers to the cellular components of bone 
B) It refers to a network of cytoplasmic filaments 
C) It is important for cellular movement 
D) It helps to determine a cell's shape 
E) None of the choices are false

Question 14

The segments of primary RNA that are cleaved off by spliceosomes are called

Accepted Answer

A) Codons 
B) Introns 
C) Exons 
D) Anticodons 
E) None of the choices are correct 
A) Codons 
B) Introns 
C) Exons 
D) Anticodons 
E) None of the choices are correct

Question 15

The promoter sequence of nucleotides in a gene is present on both strands of the DNA molecule,allowing transcription of both strands.

Accepted Answer

A) True 
 B)False

Question 16

A ribosome is composed of one molecule of RNA and several proteins.

Accepted Answer

A) True 
 B)False

Question 17

Which of the following statements concerning energy storage in the body is true?

Accepted Answer

A) Most is stored in the form of ATP 
B) Most is stored in the form of glucose 
C) Most is stored in the form of fat 
D) Most is stored in the form of protein 
E) Most is stored in the form of DNA 
A) Most is stored in the form of ATP 
B) Most is stored in the form of glucose 
C) Most is stored in the form of fat 
D) Most is stored in the form of protein 
E) Most is stored in the form of DNA

Question 18

In a metabolic pathway,the same enzyme ordinarily catalyzes several different reactions.

Accepted Answer

A) True 
 B)False

Question 19

Helps confer cell shape and motility is descriptive of

Accepted Answer

A) Integral membrane proteins 
B) Peripheral membrane proteins 
C) Both kinds of membrane proteins 
A) Integral membrane proteins 
B) Peripheral membrane proteins 
C) Both kinds of membrane proteins

Question 20

Allosteric modulation of a protein involves noncovalent binding of a ligand to a regulatory binding site.

Accepted Answer

A) True 
 B)False

Sugar can be stored as fat,but fat cannot be stored (completely)as sugar.

Cholesterol

Which of the following is not a product of glycolysis?

ATP is

In the Krebs cycle,an acetyl fragment is broken down to CO₂ and H atoms.

Proteins are broken down to amino acids by enzymes called transaminases.

Lysosomes are organelles specialized for breaking down intracellular debris or malfunctioning parts of cells.

The deletion of a single base in a gene would alter the structure of the gene's protein more than the substitution of one base for another.

A cofactor may

Most proteins that are secreted from cells are glycoproteins.

The enzyme carbonic anhydrase catalyzes the catabolism of H₂CO₃ to H₂O and CO₂.

The site where most of the ATP is generated in a cell is the

Which of the following is not true of the cytoskeleton?

The segments of primary RNA that are cleaved off by spliceosomes are called

The promoter sequence of nucleotides in a gene is present on both strands of the DNA molecule,allowing transcription of both strands.

A ribosome is composed of one molecule of RNA and several proteins.

Which of the following statements concerning energy storage in the body is true?

In a metabolic pathway,the same enzyme ordinarily catalyzes several different reactions.

Helps confer cell shape and motility is descriptive of

Allosteric modulation of a protein involves noncovalent binding of a ligand to a regulatory binding site.

Homeostasis: a Framework for Human Physiology

Chemical Composition of the Body

Movement of Molecules Across Cell Membranes

Control of Cells by Chemical Messengers

Neuronal Signaling and the Structure of the Nervous System

Sensory Physiology

Consciousness, the Brain, and Behavior

Muscle

Control of Body Movement

The Endocrine System

Cardiovascular Physiology

Respiratory Physiology

The Kidneys and Regulation of Water and Inorganic Ions

The Digestion and Absorption of Food

Regulation of Organic Metabolism and Energy Balance

Reproduction

The Immune System

Medical Physiology: Integration Using Clinical Cases

Filters

Exam 3: Cellular Structure, Proteins, and Metabolism

Sugar can be stored as fat,but fat cannot be stored (completely)as sugar.

Cholesterol

Which of the following is not a product of glycolysis?

ATP is

In the Krebs cycle,an acetyl fragment is broken down to CO2 and H atoms.

Proteins are broken down to amino acids by enzymes called transaminases.

Lysosomes are organelles specialized for breaking down intracellular debris or malfunctioning parts of cells.

The deletion of a single base in a gene would alter the structure of the gene's protein more than the substitution of one base for another.

A cofactor may

Most proteins that are secreted from cells are glycoproteins.

The enzyme carbonic anhydrase catalyzes the catabolism of H2CO3 to H2O and CO2.

The site where most of the ATP is generated in a cell is the

Which of the following is not true of the cytoskeleton?

The segments of primary RNA that are cleaved off by spliceosomes are called

The promoter sequence of nucleotides in a gene is present on both strands of the DNA molecule,allowing transcription of both strands.

A ribosome is composed of one molecule of RNA and several proteins.

Which of the following statements concerning energy storage in the body is true?

In a metabolic pathway,the same enzyme ordinarily catalyzes several different reactions.

Helps confer cell shape and motility is descriptive of

Allosteric modulation of a protein involves noncovalent binding of a ligand to a regulatory binding site.

Homeostasis: a Framework for Human Physiology

Chemical Composition of the Body

Movement of Molecules Across Cell Membranes

Control of Cells by Chemical Messengers

Neuronal Signaling and the Structure of the Nervous System

Sensory Physiology

Consciousness, the Brain, and Behavior

Muscle

Control of Body Movement

The Endocrine System

Cardiovascular Physiology

Respiratory Physiology

The Kidneys and Regulation of Water and Inorganic Ions

The Digestion and Absorption of Food

Regulation of Organic Metabolism and Energy Balance

Reproduction

The Immune System

Medical Physiology: Integration Using Clinical Cases

Filters

In the Krebs cycle,an acetyl fragment is broken down to CO₂ and H atoms.

The enzyme carbonic anhydrase catalyzes the catabolism of H₂CO₃ to H₂O and CO₂.