Question 1

How large is a nuclear pore in the nuclear envelope?

Accepted Answer

A)   larger than a ribosome
B)   larger than the Golgi apparatus
C)   larger than the endoplasmic reticulum
D)   smaller than a ribosome
E)   smaller than a proteinF) A) and B)
G) A) and E)

Question 2

Which of the following is not a function of the plasma membrane?

Accepted Answer

A)   determines which substances enter and leave the cell
B)   serves as a boundary between the cell and its environment
C)   contains receptor sites which determine how the cell interacts with its environment
D)   contains the genetic information
E)   marks the cell as belonging to a particular individualF) A) and B)
G) B) and D)

Question 3

What are the folds in mitochondrial membranes called?

Accepted Answer

A)   matrix
B)   cristae
C)   rugae
D)   lumen
E)   villiF) A) and C)
G) B) and E)

Question 4

A solution is at equilibrium across a plasma membrane. If 50 molecules were to enter the cell, how many molecules would need to exit the cell in order to maintain the equilibrium?

Accepted Answer

A)   50
B)   75
C)   25
D)   0
E)   100F) D) and E)
G) A) and E)

Question 5

Which of the following can cross the plasma membrane because of its selective permeability?

Accepted Answer

A)   gases such as oxygen and carbon dioxide
B)   ions
C)   large, polar molecules
D)   large, nonpolar molecules
E)   glycoproteinsF) C) and D)
G) A) and B)

Question 6

What components make up the ribosomes?
A) proteins and rRNA
B) proteins and DNA
C) lipids and rRNA
D) carbohydrates and rRNA
E) proteins and DNA

Accepted Answer

The answer of What components make up the ribosomes?
A) proteins...

Question 7

What is the main function of the ribosomes in the cell?

Accepted Answer

A)   to synthesize proteins
B)   to synthesize DNA
C)   to break down proteins into individual amino acids
D)   to form the nuclear envelope
E)   to provide strength and structural support for the cell membrane TheF) A) and B)
G) None of the above

Question 8

Brad placed a drop of blood in some distilled water. What happened in the red blood cells?

Accepted Answer

A)   The cells shrunk.
B)   The cells burst.
C)   The cells did not change.
D)   The cells divided into two identical cells.
E)   The cellular metabolism increased in rate.F) A) and E)
G) B) and C)

Question 9

Cilia are composed of microtubules while flagella are composed of actin filaments.

Accepted Answer

A) True 
 B)False

Question 10

Brett needs to distinguish two points that are 0.5 mm apart. What is the easiest way to do this?

Accepted Answer

A)   Use a transmission electron microscope.
B)   Use a compound light microscope.
C)   Use his eyes.
D)   Use a magnifying glass.
E)   Use a scanning electron microscope.F) A) and D)
G) D) and E)

Question 11

The phospholipid bilayer that surrounds/maintains the integrity of a cell is called a

Accepted Answer

A)   plasma membrane.
B)   Sanger enclosure.
C)   hydrophobic membrane.
D)   dialysis membrane.
E)   mosaic membrane.F) A) and C)
G) A) and E)

Question 12

Which of the following does not utilize active transport?

Accepted Answer

A)   movement of oxygen from the lungs into the blood
B)   concentrating iodine ions in the thyroid gland
C)   absorbing sugar in the gut
D)   water homeostasis in the kidneys
E)   movement of sodium and potassium in nerve cellsF) A) and C)
G) C) and D)

Question 13

During a hurricane, salt water invades fresh water marshes causing many of the plants to die. The plants are killed because the salt water solution is ________ to the plants, drawing water from their cells.

Accepted Answer

A)   isotonic
B)   hypotonic
C)   mesotonic
D)   oligotonic
E)   hypertonicF) B) and C)
G) A) and E)

Question 14

Which of the following is not a function of the cytoskeleton?

Accepted Answer

A)   maintain a cell's shape
B)   process proteins
C)   anchor organelles
D)   move organelles
E)   move the entire cellF) All of the above
G) B) and C)

Question 15

Choose the CORRECT statement about solute concentrations or particles inside and outside the cell.

Accepted Answer

A)   In a hypertonic solution, there are more particles inside the cell.
B)   In a hypotonic solution, there are more particles outside the cell.
C)   In an isotonic solution the amount of water inside and outside the cell is equal.
D)   In a hypertonic solution, there is more water outside the cell.
E)   In a hypotonic solution, there is more water inside the cell.F) A) and D)
G) A) and C)

Question 16

In developing embryos such as a chicken, what restores the amount of surface area needed for exchange requirements?

Accepted Answer

A)   respiration
B)   catabolism
C)   anabolism
D)   cell division
E)   assimilationF) C) and E)
G) B) and C)

Question 17

What is the name of the semi-fluid medium inside the cell?

Accepted Answer

A)   nucleolus
B)   cytoplasm
C)   organelle
D)   cytoskeleton
E)   mitochondrionF) None of the above
G) B) and C)

Question 18

If a cube has sides of 3 nm, what are the surface area and the volume of the cube?

Accepted Answer

A)   24 nm2, 8 nm3
B)   38 nm2, 16 nm3
C)   54 nm2, 27 nm3
D)   64 nm2, 24 nm3
E)   18 nm2, 6 nm3F) A) and E)
G) A) and C)

Question 19

What cell structure is composed of a stack of slightly curved saccules that are important in packaging and secretion?

Accepted Answer

A)   mitochondria
B)   vacuoles
C)   Golgi apparatus
D)   lysosomes
E)   endoplasmic reticulumF) A) and B)
G) A) and C)

Question 20

What is the maximum number of ATP molecules produced during aerobic respiration?

Accepted Answer

A)   38
B)   36
C)   32
D)   2
E)   4F) A) and E)
G) A) and D)

Exam 3: Cell Structure and Function

How large is a nuclear pore in the nuclear envelope?

Correct AnswerverifiedShow Answer

Which of the following is not a function of the plasma membrane?

Correct AnswerverifiedShow Answer

Cilia are composed of microtubules while flagella are composed of actin filaments.

Correct AnswerverifiedShow Answer

Choose the CORRECT statement about solute concentrations or particles inside and outside the cell.

Correct AnswerverifiedShow Answer

During a hurricane, salt water invades fresh water marshes causing many of the plants to die. The plants are killed because the salt water solution is ________ to the plants, drawing water from their cells.

Correct AnswerverifiedShow Answer

Which of the following does not utilize active transport?

Correct AnswerverifiedShow Answer

A solution is at equilibrium across a plasma membrane. If 50 molecules were to enter the cell, how many molecules would need to exit the cell in order to maintain the equilibrium?

Correct AnswerverifiedShow Answer

What cell structure is composed of a stack of slightly curved saccules that are important in packaging and secretion?

Correct AnswerverifiedShow Answer

The phospholipid bilayer that surrounds/maintains the integrity of a cell is called a

Correct AnswerverifiedShow Answer

What is the maximum number of ATP molecules produced during aerobic respiration?

Correct AnswerverifiedShow Answer

What components make up the ribosomes? A) proteins and rRNA B) proteins and DNA C) lipids and rRNA D) carbohydrates and rRNA E) proteins and DNA

Correct AnswerverifiedShow Answer

In developing embryos such as a chicken, what restores the amount of surface area needed for exchange requirements?

Correct AnswerverifiedShow Answer

Which of the following can cross the plasma membrane because of its selective permeability?

Correct AnswerverifiedShow Answer

Brad placed a drop of blood in some distilled water. What happened in the red blood cells?

Correct AnswerverifiedShow Answer

What is the name of the semi-fluid medium inside the cell?

Correct AnswerverifiedShow Answer

What are the folds in mitochondrial membranes called?

Correct AnswerverifiedShow Answer

What is the main function of the ribosomes in the cell?

Correct AnswerverifiedShow Answer

Which of the following is not a function of the cytoskeleton?

Correct AnswerverifiedShow Answer

Brett needs to distinguish two points that are 0.5 mm apart. What is the easiest way to do this?

Correct AnswerverifiedShow Answer

If a cube has sides of 3 nm, what are the surface area and the volume of the cube?

Correct AnswerverifiedShow Answer

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