Question 1

Because bacteria are prokaryotes, they do not have DNA.

Accepted Answer

A) True 
 B)False

Question 2

What are the folds in mitochondrial membranes called?

Accepted Answer

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

Question 3

If you could remove all the phosphate in the cell, what would happen to the ATP cycle?

Accepted Answer

A)   It would stop when all the ATP had been converted into ADP.
B)   It would stop when all the ADP had been converted into ATP.
C)   It would cycle faster because the lack of phosphate would drive the cycle.
D)   It would cycle faster because of the buildup of ATP.
E)   It would not affect the ATP cycle.F) A) and B)
G) B) and D)

Question 4

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 B)
G) A) and C)

Question 5

Whose work proved conclusively that spontaneous generation of life from nonlife was not possible?

Accepted Answer

A)   Louis Pasteur
B)   Charles Darwin
C)   John Ray
D)   Walther Flemming
E)   Georges CuvierF) A) and B)
G) A) and C)

Question 6

Which of the following structures are present in both eukaryotes and prokaryotes?

Accepted Answer

A)   plasma membrane
B)   nucleus
C)   endoplasmic reticulum
D)   Golgi body
E)   mitochondriaF) A) and E)
G) A) and D)

Question 7

Explain the functions of adhesion junctions, gap junctions, and tight junctions in human cells.

Accepted Answer

Adhesion junctions serve to mechanically...

Question 8

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) B) and E)
G) C) and E)

Question 9

Centrosomes are associated with

Accepted Answer

A)   ribosomes.
B)   mitochondria.
C)   chromosomes.
D)   microtubules.
E)   lysosomes.F) C) and D)
G) B) and C)

Question 10

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

Accepted Answer

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

Question 11

Viruses are not made up of cells. According to cell theory, this means what?

Accepted Answer

A)   Viruses can cause disease.
B)   Cells come only from pre-existing cells.
C)   Cells can be infected by viruses.
D)   Viruses are not living.
E)   Cells and viruses are the same thing.F) A) and D)
G) C) and E)

Question 12

Which organelle can be likened to a post office?

Accepted Answer

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

Question 13

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) All of the above
G) A) and D) D

Question 14

Angela would like to look at living algae from pond water. What type of equipment should she use?

Accepted Answer

A)   compound light microscope
B)   transmission electron microscope
C)   scanning electron microscope
D)   magnifying glass
E)   her naked eyeF) B) and E)
G) None of the above

Question 15

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

Accepted Answer

A) True 
 B)False

Question 16

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 E)
G) B) and D)

Question 17

What is the function of cholesterol in the plasma membrane?

Accepted Answer

A)   cell marker
B)   receptor
C)   support
D)   channel
E)   enzymeF) B) and D)
G) All of the above

Question 18

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) B) and E)
G) All of the above

Question 19

The first day of football practice was rough on the squad. During practice 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) C) and D)
G) A) and D)

Question 20

Why type of junctions must there be between cells to form a barrier?

Accepted Answer

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

Exam 3: Cell Structure and Function

Because bacteria are prokaryotes, they do not have DNA.

Correct AnswerverifiedShow Answer

What are the folds in mitochondrial membranes called?

Correct AnswerverifiedShow Answer

If you could remove all the phosphate in the cell, what would happen to the ATP cycle?

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

Whose work proved conclusively that spontaneous generation of life from nonlife was not possible?

Correct AnswerverifiedShow Answer

Which of the following structures are present in both eukaryotes and prokaryotes?

Correct AnswerverifiedShow Answer

Explain the functions of adhesion junctions, gap junctions, and tight junctions in human cells.

Correct AnswerverifiedAdhesion junctions serve to mechanically...View AnswerShow Answer

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

Correct AnswerverifiedShow Answer

Centrosomes are associated with

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedA

Viruses are not made up of cells. According to cell theory, this means what?

Correct AnswerverifiedShow Answer

Which organelle can be likened to a post office?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedD

Angela would like to look at living algae from pond water. What type of equipment should she use?

Correct AnswerverifiedShow Answer

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

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

What is the function of cholesterol in the plasma membrane?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

The first day of football practice was rough on the squad. During practice 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

Why type of junctions must there be between cells to form a barrier?

Correct AnswerverifiedC

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Adhesion junctions serve to mechanically...
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