Question 1

As they flow over rotten logs as a fluid sheet,slime molds appear to lack any partitioning into individual cells; however,slime molds do become cellular when they change form to produce spores.The surface of some parasitic flatworms and some insect tissues are a "syncytium" or layer of living material that contains many nuclei and cell organelles but lacks partitioning by cell membranes.These tissues consume food and produce wastes.In light of the cell theory that "all living things are composed of cells," then

Accepted Answer

A)  these tissues are not living because they are not cellular.
B)  these tissues are obviously a bridge between nonliving and primitive living cells.
C)  the general concept of life-is-cellular still holds because these organisms are cellular at specific stages in their life cycle,but this shows that cell membrane partitions can be abandoned.
D)  this proves that a "vital force" beyond cell chemistry can give life to substances.
E)  All of the choices are true.F) B) and C)
G) None of the above

Question 2

What figure has the greatest surface area : volume ratio?

Accepted Answer

A)  Figure A
B)  Figure B
C)  Figure C
D)  All of these are the same.E) A) and B)
F) None of the above

Question 3

Which of the following gives rise to both lysosomes and vesicles?

Accepted Answer

A)  rough endoplasmic reticula
B)  mitochondria
C)  Golgi apparatus
D)  ribosomesE) B) and C)
F) C) and D)

Question 4

Which of the following features is NOT found in a bacterial cell?

Accepted Answer

A)  cell wall
B)  nucleus
C)  cell membrane
D)  nuceloid region
E)  ribosomeF) A) and D)
G) B) and E)

Question 5

Mitochondria have an inner membrane system called thylakoid membranes.

Accepted Answer

A) True 
 B)False

Question 6

What is the smallest unit of living matter?

Accepted Answer

A)  atom
B)  element
C)  Golgi apparatus
D)  cell
E)  nucleusF) A) and D)
G) B) and C)

Question 7

Which is NOT true of eukaryotic cells?

Accepted Answer

A)  A true nucleus contains the chromosomes.
B)  Eukaryotic cells contain membrane-bounded compartments.
C)  They contain ribosomes that are smaller than those of prokaryotic cells.
D)  They all contain mitochondria.
E)  They contain many organelles in the cytoplasm.F) C) and D)
G) All of the above

Question 8

Which organelle is primarily responsible for the breakdown of lipids within the cell?

Accepted Answer

A)  Golgi apparatus
B)  chloroplast
C)  vacuole
D)  peroxisomeE) C) and D)
F) All of the above D

Question 9

What structures enable the vesicles from the Golgi apparatus to fuse with the cell membrane?

Accepted Answer

A)  membrane-associated proteins
B)  phospholipids
C)  cholesterol molecules within the cell membrane
D)  secretory vesicles that engulf the Golgi apparatus will allow the vesicles to fuseE) All of the above
F) C) and D)

Question 10

What are the potential consequences of an individual who suffers from a genetic disorder that prohibits them from properly forming microtubules ?

Accepted Answer

A)  Their cells will not be able to maintain the normal cellular shape
B)  The cells may not be able to divide correctly during cellular division
C)  The cilia located on the respiratory cells may have a limited function
D)  All of the above are possible consequences of improperly formed microtubulesE) All of the above
F) A) and B) A

Question 11

An amino sugar called N-acetylmuramic acid is an important building block of the cell wall of some bacteria.Penicillin prevents this amino sugar from being incorporated into the bacterial cell wall.Therefore,

Accepted Answer

A)  penicillin affects bacteria but not eukaryotes because eukaryotic cell walls are different.
B)  bacterial cells that had already formed their cell walls would be unaffected.
C)  penicillin would stop the growth of active colonies of susceptible bacteria.
D)  All of the choices are correct.E) B) and D)
F) A) and C)

Question 12

Membrane-bounded vesicles that contain enzymes for oxidizing small organic molecules with the formation of hydrogen peroxide are

Accepted Answer

A)  vacuoles.
B)  vesicles.
C)  glyoxisomes.
D)  lysosomes.
E)  peroxisomes.F) A) and E)
G) B) and D)

Question 13

Mitochondria and chloroplasts are able to reproduce independently from the division of the cell.

Accepted Answer

A) True 
 B)False  True

Question 14

All cells have a cell wall that regulates the passage of molecules into and out of the cell.

Accepted Answer

A) True 
 B)False

Question 15

Which of these is NOT part of the endomembrane system of the cell?

Accepted Answer

A)  mitochondria
B)  endoplasmic reticulum
C)  lysosomes
D)  Golgi complexE) B) and D)
F) A) and C)

Question 16

Which of the following products are unique to vacuoles?

Accepted Answer

A)  water
B)  sugars
C)  water-soluble pigments
D)  all of these are found in vacuolesE) C) and D)
F) None of the above

Question 17

DNA is housed within the nucleus,but the mRNA code needs to leave in order to be translated into a protein.How does the mRNA code leave the nucleus if the nucleus is surrounded by the nuclear envelope?

Accepted Answer

A)  The nuclear envelope dissolves in order to allow the mRNA code to leave.
B)  The nuclear envelope contains pores that allow the mRNA to exit through.
C)  A vesicle will bud off from the nuclear envelope containing the mRNA.
D)  The mRNA will be coded into a protein within the nucleus.Then the protein leaves the nucleus.E) A) and C)
F) A) and D)

Question 18

Mitochondria are thought to be derived from aerobic bacteria that became part of the eukaryotic cell through endosymbiosis.

Accepted Answer

A) True 
 B)False

Question 19

All cells have these two characteristics:

Accepted Answer

A)  contain DNA in the nucleus and have a plasma membrane
B)  produce a cell wall outside of the plasma membrane
C)  contain mitochondria and chloroplasts
D)  have a plasma membrane and ribosomes in the cytoplasmE) All of the above
F) C) and D)

Question 20

Of the following,which is NOT associated with the mitochondria?

Accepted Answer

A)  ATP production
B)  cristae
C)  stroma
D)  matrixE) A) and B)
F) A) and C)

Exam 4: Cell Structure and Function

Correct Answer
verified

What figure has the greatest surface area : volume ratio?

Correct Answer
verified

Which of the following gives rise to both lysosomes and vesicles?

Correct Answer
verified

Which of the following features is NOT found in a bacterial cell?

Correct Answer
verified

Mitochondria have an inner membrane system called thylakoid membranes.

Correct Answer
verified

What is the smallest unit of living matter?

Correct Answer
verified

Which is NOT true of eukaryotic cells?

Correct Answer
verified

Which organelle is primarily responsible for the breakdown of lipids within the cell?

Correct Answer
verified
D

What structures enable the vesicles from the Golgi apparatus to fuse with the cell membrane?

Correct Answer
verified

What are the potential consequences of an individual who suffers from a genetic disorder that prohibits them from properly forming microtubules ?

Correct Answer
verified
A

An amino sugar called N-acetylmuramic acid is an important building block of the cell wall of some bacteria.Penicillin prevents this amino sugar from being incorporated into the bacterial cell wall.Therefore,

Correct Answer
verified

Membrane-bounded vesicles that contain enzymes for oxidizing small organic molecules with the formation of hydrogen peroxide are

Correct Answer
verified

Mitochondria and chloroplasts are able to reproduce independently from the division of the cell.

Correct Answer
verified
True

All cells have a cell wall that regulates the passage of molecules into and out of the cell.

Correct Answer
verified

Which of these is NOT part of the endomembrane system of the cell?

Correct Answer
verified

Which of the following products are unique to vacuoles?

Correct Answer
verified

DNA is housed within the nucleus,but the mRNA code needs to leave in order to be translated into a protein.How does the mRNA code leave the nucleus if the nucleus is surrounded by the nuclear envelope?

Correct Answer
verified

Mitochondria are thought to be derived from aerobic bacteria that became part of the eukaryotic cell through endosymbiosis.

Correct Answer
verified

All cells have these two characteristics:

Correct Answer
verified

Of the following,which is NOT associated with the mitochondria?

Correct Answer
verified

Exam 4: Cell Structure and Function

Correct AnswerverifiedShow Answer

What figure has the greatest surface area : volume ratio?

Correct AnswerverifiedShow Answer

Which of the following gives rise to both lysosomes and vesicles?

Correct AnswerverifiedShow Answer

Which of the following features is NOT found in a bacterial cell?

Correct AnswerverifiedShow Answer

Mitochondria have an inner membrane system called thylakoid membranes.

Correct AnswerverifiedShow Answer

What is the smallest unit of living matter?

Correct AnswerverifiedShow Answer

Which is NOT true of eukaryotic cells?

Correct AnswerverifiedShow Answer

Which organelle is primarily responsible for the breakdown of lipids within the cell?

Correct AnswerverifiedD

What structures enable the vesicles from the Golgi apparatus to fuse with the cell membrane?

Correct AnswerverifiedShow Answer

What are the potential consequences of an individual who suffers from a genetic disorder that prohibits them from properly forming microtubules ?

Correct AnswerverifiedA

An amino sugar called N-acetylmuramic acid is an important building block of the cell wall of some bacteria.Penicillin prevents this amino sugar from being incorporated into the bacterial cell wall.Therefore,

Correct AnswerverifiedShow Answer

Membrane-bounded vesicles that contain enzymes for oxidizing small organic molecules with the formation of hydrogen peroxide are

Correct AnswerverifiedShow Answer

Mitochondria and chloroplasts are able to reproduce independently from the division of the cell.

Correct AnswerverifiedTrue

All cells have a cell wall that regulates the passage of molecules into and out of the cell.

Correct AnswerverifiedShow Answer

Which of these is NOT part of the endomembrane system of the cell?

Correct AnswerverifiedShow Answer

Which of the following products are unique to vacuoles?

Correct AnswerverifiedShow Answer

DNA is housed within the nucleus,but the mRNA code needs to leave in order to be translated into a protein.How does the mRNA code leave the nucleus if the nucleus is surrounded by the nuclear envelope?

Correct AnswerverifiedShow Answer

Mitochondria are thought to be derived from aerobic bacteria that became part of the eukaryotic cell through endosymbiosis.

Correct AnswerverifiedShow Answer

All cells have these two characteristics:

Correct AnswerverifiedShow Answer

Of the following,which is NOT associated with the mitochondria?

Correct AnswerverifiedShow Answer

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D

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A

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True

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