Question 1

In the reaction shown,identify the role of each of the participants.
COS1U1B12S1U1B0 + HS1U1B12S1U1B0O   HS1U1B12S1U1B0COS1U1B13S1U1B0
-carbonic anhydrase

Accepted Answer

A) enzyme 
B) substrate(s) 
C) product(s) 
A) enzyme 
B) substrate(s) 
C) product(s)

Question 2

The tRNA molecule contains the three-base sequence called the

Accepted Answer

A)  codon. 
B)  anticodon. 
C)  semicodon. 
D)  aminocodon. 
A)  codon. 
B)  anticodon. 
C)  semicodon. 
D)  aminocodon.

Question 3

Aerobic metabolism of glucose

Accepted Answer

A)  requires oxygen. 
B)  produces more ATP per glucose than anaerobic pathways. 
C)  is the fastest way to produce glucose. 
D)  requires oxygen and produces more ATP per glucose than anaerobic pathways. 
A)  requires oxygen. 
B)  produces more ATP per glucose than anaerobic pathways. 
C)  is the fastest way to produce glucose. 
D)  requires oxygen and produces more ATP per glucose than anaerobic pathways.

Question 4

A chemical reaction that can proceed in both directions is called a ________.

Accepted Answer

The answer of A chemical reaction that can proceed in...

Question 5

The template strand of DNA

Accepted Answer

A)  is not involved in mRNA synthesis. 
B)  serves as a guide for mRNA synthesis. 
C)  includes the base uracil. 
D)  is alternatively spliced to generate the exon. 
A)  is not involved in mRNA synthesis. 
B)  serves as a guide for mRNA synthesis. 
C)  includes the base uracil. 
D)  is alternatively spliced to generate the exon.

Question 6

The protein in the mitochondria that captures the kinetic energy of moving H+ ions and converts it to the stored energy of ATP is called

Accepted Answer

A)  ATP synthase. 
B)  lactate dehydrogenase. 
C)  oxidative phosphorylase. 
D)  glucokinase. 
A)  ATP synthase. 
B)  lactate dehydrogenase. 
C)  oxidative phosphorylase. 
D)  glucokinase.

Question 7

The rate of product formation by an enzyme-catalyzed reaction would be increased by

Accepted Answer

A)  adding more substrate molecules. 
B)  adding more product molecules. 
C)  reducing the number of enzymes. 
D)  reducing the number of substrate molecules. 
A)  adding more substrate molecules. 
B)  adding more product molecules. 
C)  reducing the number of enzymes. 
D)  reducing the number of substrate molecules.

Question 8

End-product inhibition describes the process whereby

Accepted Answer

A)  decreasing amounts of substrate reduce activity of the enzyme. 
B)  decreasing amounts of product reduce activity of the enzyme. 
C)  increasing amounts of substrate reduce activity of the enzyme. 
D)  increasing amounts of product reduce activity of the enzyme. 
E)  increasing amounts of product reduce activity of all enzymes in the vicinity. 
A)  decreasing amounts of substrate reduce activity of the enzyme. 
B)  decreasing amounts of product reduce activity of the enzyme. 
C)  increasing amounts of substrate reduce activity of the enzyme. 
D)  increasing amounts of product reduce activity of the enzyme. 
E)  increasing amounts of product reduce activity of all enzymes in the vicinity.

Question 9

Why is there a range of 30-32 ATP molecules produced from one glucose molecule?

Accepted Answer

A)  Sometimes the electron transport system is more efficient than other times. 
B)  The NADH molecules produced during glycolysis are in the cytoplasm; occasionally, electrons are carried by the lower energy FADH2 instead of NADH. 
C)  Individual variation is normal among cells. 
D)  Any of these answers may work under different cellular conditions. 
A)  Sometimes the electron transport system is more efficient than other times. 
B)  The NADH molecules produced during glycolysis are in the cytoplasm; occasionally, electrons are carried by the lower energy FADH2 instead of NADH. 
C)  Individual variation is normal among cells. 
D)  Any of these answers may work under different cellular conditions.

Question 10

Compare and contrast potential energy with kinetic energy.

Accepted Answer

Potential energy is the energy

Question 11

The peptide bond formed between amino acids occurs as a consequence of ________.

Accepted Answer

dehydratio

Question 12

Match the specific enzyme to its class.
-synthetase

Accepted Answer

A) oxidoreductase 
B) hydrolase 
C) transferase 
D) ligase 
E) lyase 
A) oxidoreductase 
B) hydrolase 
C) transferase 
D) ligase 
E) lyase

Question 13

The enzymes that synthesize mRNA from the start codon are called

Accepted Answer

A)  ribonucleases. 
B)  RNA polymerases. 
C)  DNA polymerases. 
D)  ATP synthases. 
E)  lactate dehydrogenases. 
A)  ribonucleases. 
B)  RNA polymerases. 
C)  DNA polymerases. 
D)  ATP synthases. 
E)  lactate dehydrogenases.

Question 14

In the absence of a signal sequence,a newly synthesized protein localizes to the

Accepted Answer

A)  mitochondria. 
B)  cytoplasm. 
C)  peroxisome. 
D)  nucleus. 
E)  plasma membrane. 
A)  mitochondria. 
B)  cytoplasm. 
C)  peroxisome. 
D)  nucleus. 
E)  plasma membrane.

Question 15

What are the advantages of using ATP as the energy-transferring molecule in a cell?

Accepted Answer

ATP easily acquires the energy

Question 16

In the reaction shown,identify the role of each of the participants.
COS1U1B12S1U1B0 + HS1U1B12S1U1B0O   HS1U1B12S1U1B0COS1U1B13S1U1B0
-H2CO3

Accepted Answer

A) enzyme 
B) substrate(s) 
C) product(s) 
A) enzyme 
B) substrate(s) 
C) product(s)

Question 17

The folding of proteins occurs via the formation of weak ________ and ________ bonds between amino acids.Much stronger covalent bonds like ________ bonds can occur between ________ amino acids.

Accepted Answer

hydrogen,i

Question 18

An enzyme that transfers chemical groups among substrates is a

Accepted Answer

A)  hydrolase. 
B)  lipase. 
C)  transferase. 
D)  ligase. 
E)  kinase. 
A)  hydrolase. 
B)  lipase. 
C)  transferase. 
D)  ligase. 
E)  kinase.

Question 19

Define the law of mass action.

Accepted Answer

When a reaction is at equilibr

Question 20

An example of transamination is

Accepted Answer

A)  removing an amine group from one molecule and binding it to a different molecule. 
B)  removing an amino group and putting it into the bloodstream for the kidneys to discard. 
C)  removing a phosphate group from a molecule. 
D)  finding a brand new sports car in your driveway with your name on it. 
A)  removing an amine group from one molecule and binding it to a different molecule. 
B)  removing an amino group and putting it into the bloodstream for the kidneys to discard. 
C)  removing a phosphate group from a molecule. 
D)  finding a brand new sports car in your driveway with your name on it.

Exam 4: Energy and Cellular Metabolism

In the reaction shown,identify the role of each of the participants. CO2 + H2O H2CO3 -carbonic anhydrase

The tRNA molecule contains the three-base sequence called the

Aerobic metabolism of glucose

A chemical reaction that can proceed in both directions is called a ________.

The template strand of DNA

The protein in the mitochondria that captures the kinetic energy of moving H+ ions and converts it to the stored energy of ATP is called

The rate of product formation by an enzyme-catalyzed reaction would be increased by

End-product inhibition describes the process whereby

Why is there a range of 30-32 ATP molecules produced from one glucose molecule?

Compare and contrast potential energy with kinetic energy.

The peptide bond formed between amino acids occurs as a consequence of ________.

Match the specific enzyme to its class. -synthetase

The enzymes that synthesize mRNA from the start codon are called

In the absence of a signal sequence,a newly synthesized protein localizes to the

What are the advantages of using ATP as the energy-transferring molecule in a cell?

In the reaction shown,identify the role of each of the participants. CO2 + H2O H2CO3 -H2CO3

The folding of proteins occurs via the formation of weak ________ and ________ bonds between amino acids.Much stronger covalent bonds like ________ bonds can occur between ________ amino acids.

An enzyme that transfers chemical groups among substrates is a

Define the law of mass action.

An example of transamination is

Introduction to Physiology

Molecular Interactions

Compartmentation: Cells and Tissues

Membrane Dynamics

Communication, Integration, and Homeostasis

Introduction to the Endocrine System

Neurons: Cellular and Network Properties

The Central Nervous System

Sensory Physiology

Efferent Division: Autonomic and Somatic Motor Control

Muscles

Integrative Physiology I: Control of Body Movement

Cardiovascular Physiology

Blood Flow and the Control of Blood Pressure

Blood

Mechanics of Breathing

Gas Exchange and Transport

The Kidneys

Integrative Physiology II: Fluid and Electrolyte Balance

The Digestive System

Metabolism and Energy Balance

Endocrine Control of Growth and Metabolism

The Immune System

Integrative Physiology III: Exercise

Reproduction and Development

Filters

In the reaction shown,identify the role of each of the participants. CO₂ + H₂O H₂CO₃ -carbonic anhydrase

The protein in the mitochondria that captures the kinetic energy of moving H⁺ ions and converts it to the stored energy of ATP is called

In the reaction shown,identify the role of each of the participants. CO₂ + H₂O H₂CO₃ -H₂CO₃

The folding of proteins occurs via the formation of weak and bonds between amino acids.Much stronger covalent bonds like bonds can occur between amino acids.