Question 1

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

Accepted Answer

A)   Use an electron microscope.
B)   Use a light microscope.
C)   Use his eyes.D) B) and C)
E) All of the above

Question 2

Only glucose can be used as an energy source in the human body.

Accepted Answer

A) True 
 B)False

Question 3

The size of a metabolizing cell is limited by its

Accepted Answer

A)   extracellular matrix.
B)   function.
C)   nuclear size.
D)   surface area-to-volume ratio.
E)   genome size.F) C) and D)
G) A) and C)

Question 4

The plasma membrane contains how many layers of phospholipids?

Accepted Answer

A)   one
B)   two
C)   four
D)   eight
E)   sixteenF) A) and B)
G) A) and C)

Question 5

What type of microscopy provides a three-dimensional view of the surface of an object?

Accepted Answer

A)   compound light microscope
B)   transmission electron microscope
C)   scanning electron microscope
D)   phase contrast microscope
E)   ultraviolet microscopeF) B) and E)
G) C) and D)

Question 6

Which organelle can be likened to a post office?

Accepted Answer

A)   nucleus
B)   nucleolus
C)   mitochondria
D)   endoplasmic reticulum
E)   Golgi apparatusF) A) and C)
G) B) and D)

Question 7

What is the name of the semifluid medium inside the cell?

Accepted Answer

A)   nucleolus
B)   cytoplasm
C)   organelle
D)   cytoskeleton
E)   mitochondrionF) B) and D)
G) C) and D)

Question 8

Archaea are considered the evolutionary precursors to eukaryotic cells.

Accepted Answer

A) True 
 B)False

Question 9

The first day of football practice was rough on the squad.The players complained of cramps and sore muscles.The reason for their complaints was that there was a __________________ build up in their muscles.

Accepted Answer

A)   glucose
B)   alcohol
C)   carbon dioxide
D)   carbon monoxide
E)   lactateF) B) and E)
G) A) and D)

Question 10

A solution is at equilibrium across a plasma membrane.If 50 molecules enter the cell,how many molecules exit the cell?

Accepted Answer

A)   50
B)   more than 50
C)   fewer than 50D) B) and C)
E) A) and C)

Question 11

What is the function of cholesterol in the plasma membrane?

Accepted Answer

A)   cell marker
B)   receptor
C)   support
D)   channel
E)   enzymeF) A) and D)
G) A) and E)

Question 12

What is the name of a photograph of a specimen obtained with a microscope?

Accepted Answer

A)   negative
B)   dermatome
C)   thermograph
D)   micrograph
E)   chromatographF) B) and D)
G) A) and C)

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 B)

Question 14

Which of the following is not associated with the cytoskeleton?

Accepted Answer

A)   intermediate filaments
B)   microtubules
C)   microbodies
D)   actin filaments
E)   centrosomeF) B) and E)
G) A) and C)

Question 15

Sheree observed an amoeba feeding by engulfing the prey with it's false feet or pseudopods.This process is known as

Accepted Answer

A)   pinocytosis.
B)   phagocytosis.
C)   exocytosis.
D)   facilitated transport.
E)   osmosis.F) A) and B)
G) B) and E)

Question 16

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 17

When ATP is broken down,heat is released.

Accepted Answer

A) True 
 B)False

Question 18

The grainy-looking substance inside the nucleus is composed of

Accepted Answer

A)   phospholipids.
B)   DNA and proteins.
C)   nucleoplasm.
D)   ribosomes.
E)   mitochondria.F) None of the above
G) C) and E)

Question 19

In an experiment in the laboratory,a small colored molecule is injected into one cells.Within minutes,the molecule has entered the adjacent cells.What type of junction connects these cells?

Accepted Answer

A)   gap junctions
B)   free junctions
C)   adhesion junctions
D)   tight junctions
E)   actin junctionsF) B) and D)
G) A) and D)

Question 20

Why type of junction must there be between the cells of your bladder?

Accepted Answer

A)   adhesion junctions
B)   gap junctions
C)   tight junctions
D)   channel junctions
E)   free junctionsF) C) and D)
G) All of the above

Exam 3: Cell Structure and Function

The first day of football practice was rough on the squad.The players complained of cramps and sore muscles.The reason for their complaints was that there was a __________________ build up in their muscles.

Correct AnswerverifiedShow Answer

A solution is at equilibrium across a plasma membrane.If 50 molecules enter the cell,how many molecules exit the cell?

Correct AnswerverifiedShow Answer

What is the function of cholesterol in the plasma membrane?

Correct AnswerverifiedShow Answer

What is the name of the semifluid medium inside the cell?

Correct AnswerverifiedShow Answer

Which of the following is not associated with the cytoskeleton?

Correct AnswerverifiedShow Answer

What type of microscopy provides a three-dimensional view of the surface of an object?

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

The plasma membrane contains how many layers of phospholipids?

Correct AnswerverifiedShow Answer

In an experiment in the laboratory,a small colored molecule is injected into one cells.Within minutes,the molecule has entered the adjacent cells.What type of junction connects these cells?

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

Archaea are considered the evolutionary precursors to eukaryotic cells.

Correct AnswerverifiedShow Answer

Sheree observed an amoeba feeding by engulfing the prey with it's false feet or pseudopods.This process is known as

Correct AnswerverifiedShow Answer

Only glucose can be used as an energy source in the human body.

Correct AnswerverifiedShow Answer

The grainy-looking substance inside the nucleus is composed of

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

Which organelle can be likened to a post office?

Correct AnswerverifiedShow Answer

Why type of junction must there be between the cells of your bladder?

Correct AnswerverifiedShow Answer

What is the name of a photograph of a specimen obtained with a microscope?

Correct AnswerverifiedShow Answer

The size of a metabolizing cell is limited by its

Correct AnswerverifiedShow Answer

When ATP is broken down,heat is released.

Correct AnswerverifiedShow Answer

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