Page 1 of 186
Conceptual Approach 4th Edition By Judi
Nath, Carie Braun Complete Test Bank, All
Chapters Are Included
Question 1 (MC)
The nucleus, which is essential for function and survival of the cell:
A) is the site of protein synthesis
B) contains the genetic code
C) transforms cellular energy
D) initiates aerobic metabolism
Answer: B
Rationale: The nucleus is the control center of the cell, containing
the genetic blueprint (DNA). It is the site of transcription, which
guides the synthesis of all cellular proteins.
,Page 2 of 186
Question 2 (MC)
Although energy is not made in mitochondria, they are known as
the power plants of the cell because they:
A) contain RNA for protein synthesis
B) utilize glycolysis for oxidative energy
C) extract energy from organic compounds
D) store calcium bonds for muscle contractions
Answer: C
Rationale: Mitochondria are the primary site of cellular
respiration. They extract high-energy electrons from organic
compounds (like glucose) and use them to produce ATP, the cell’s
main energy currency.
Question 3 (MC)
Although the basic structure of the cell plasma membrane is
,Page 3 of 186
formed by a lipid bilayer, most of the specific membrane
functions are carried out by:
A) bound and transmembrane proteins
B) complex, long carbohydrate chains
C) surface antigens and hormone receptors
D) a gating system of selective ion channels
Answer: A
Rationale: The fluid mosaic model shows that proteins (integral,
peripheral, and transmembrane) embedded in the lipid bilayer
perform the membrane’s specific functions — such as transport,
cell-to-cell recognition, signal transduction, and enzyme activity.
Question 4 (MC)
Aerobic metabolism, also known as oxidative metabolism,
provides energy by:
, Page 4 of 186
A) removing the phosphate bonds from ATP
B) combining hydrogen and oxygen to form water
C) activating pyruvate stored in the cytoplasm
D) breaking down glucose to form lactic acid
Answer: B
Rationale: Aerobic metabolism uses oxygen as the final electron
acceptor in the electron transport chain, combining hydrogen ions
and oxygen to form water. This process is highly efficient at
generating ATP from glucose and other fuel molecules.
Question 5 (MC)
Which organelle is responsible for synthesis of proteins by bound
ribosomes?
A) Rough endoplasmic reticulum
B) Smooth endoplasmic reticulum
Conceptual Approach 4th Edition By Judi
Nath, Carie Braun Complete Test Bank, All
Chapters Are Included
Question 1 (MC)
The nucleus, which is essential for function and survival of the cell:
A) is the site of protein synthesis
B) contains the genetic code
C) transforms cellular energy
D) initiates aerobic metabolism
Answer: B
Rationale: The nucleus is the control center of the cell, containing
the genetic blueprint (DNA). It is the site of transcription, which
guides the synthesis of all cellular proteins.
,Page 2 of 186
Question 2 (MC)
Although energy is not made in mitochondria, they are known as
the power plants of the cell because they:
A) contain RNA for protein synthesis
B) utilize glycolysis for oxidative energy
C) extract energy from organic compounds
D) store calcium bonds for muscle contractions
Answer: C
Rationale: Mitochondria are the primary site of cellular
respiration. They extract high-energy electrons from organic
compounds (like glucose) and use them to produce ATP, the cell’s
main energy currency.
Question 3 (MC)
Although the basic structure of the cell plasma membrane is
,Page 3 of 186
formed by a lipid bilayer, most of the specific membrane
functions are carried out by:
A) bound and transmembrane proteins
B) complex, long carbohydrate chains
C) surface antigens and hormone receptors
D) a gating system of selective ion channels
Answer: A
Rationale: The fluid mosaic model shows that proteins (integral,
peripheral, and transmembrane) embedded in the lipid bilayer
perform the membrane’s specific functions — such as transport,
cell-to-cell recognition, signal transduction, and enzyme activity.
Question 4 (MC)
Aerobic metabolism, also known as oxidative metabolism,
provides energy by:
, Page 4 of 186
A) removing the phosphate bonds from ATP
B) combining hydrogen and oxygen to form water
C) activating pyruvate stored in the cytoplasm
D) breaking down glucose to form lactic acid
Answer: B
Rationale: Aerobic metabolism uses oxygen as the final electron
acceptor in the electron transport chain, combining hydrogen ions
and oxygen to form water. This process is highly efficient at
generating ATP from glucose and other fuel molecules.
Question 5 (MC)
Which organelle is responsible for synthesis of proteins by bound
ribosomes?
A) Rough endoplasmic reticulum
B) Smooth endoplasmic reticulum
