Question 1

Light microscopes

Accepted Answer

A)   typically provide more resolution than an electron microscope.
B)   work by reflecting electrons off the surface of an object being studied.
C)   use light and glass lenses to magnify an image.
D)   are generally not used to view bacteria.E) A) and B)
F) A) and C)

Question 2

Which of the following cell structures are associated with the breakdown of harmful substances?

Accepted Answer

A)   chloroplasts
B)   mitochondria
C)   peroxisomes
D)   centriolesE) None of the above
F) All of the above

Question 3

You are told that the cells on a microscope slide are plant, animal, or bacterial. You look at them through a microscope and see cell walls and membrane-bound organelles. You conclude correctly that the cells

Accepted Answer

A)   are plant cells.
B)   are animal cells.
C)   are bacterial cells.
D)   could be either plant or bacterial cells.E) All of the above
F) A) and C)

Question 4

Which of the following structures is/are used by prokaryotes for attaching to surfaces?

Accepted Answer

A)   flagella
B)   nucleoid
C)   anchoring junctions
D)   capsuleE) A) and B)
F) None of the above

Question 5

The nucleoid region of a prokaryotic cell

Accepted Answer

A)   contains the cell's DNA.
B)   separates the RNA from the cytoplasm.
C)   is surrounded by a nucleoid membrane.
D)   contains the cell's nucleoli.E) B) and C)
F) All of the above

Question 6

The stroma is the

Accepted Answer

A)   thick fluid enclosed by the inner chloroplast membrane.
B)   watery fluid enclosed by the inner membrane of a mitochondrion.
C)   space between the inner and outer membranes of a chloroplast.
D)   space between the inner and outer membranes of a mitochondrion.E) B) and D)
F) All of the above

Question 7

Which location in the cell is unlikely to contain ribosomes or ribosomal subunits?

Accepted Answer

A)   nuclear envelope
B)   plasma membrane
C)   endoplasmic reticulum
D)   cytoplasmE) B) and D)
F) A) and B)

Question 8

The extracellular matrix attached to cells via glycoproteins may then bind to ________ in the plasma membrane.

Accepted Answer

A)   dynein
B)   collagen
C)   integrins
D)   polysaccharidesE) A) and B)
F) A) and C)

Question 9

The membranous compartmentalization of a cell

Accepted Answer

A)   divides the cell into two equal-sized halves.
B)   allows different chemical conditions to be maintained in different parts of the cell.
C)   requires the presence of a cell wall.
D)   is common to both prokaryotes and eukaryotes.E) B) and C)
F) B) and D)

Question 10

Which of the following statements regarding the Golgi apparatus is false?

Accepted Answer

A)   The Golgi apparatus works closely with the endoplasmic reticulum.
B)   The Golgi apparatus serves as a molecular warehouse and finishing factory.
C)   The Golgi apparatus decreases in size when a cell increases its protein production.
D)   The Golgi apparatus modifies chemicals received from the endoplasmic reticulum.E) None of the above
F) A) and B)

Question 11

A scientist wants to examine living cells lining the respiratory tract to determine how the cells use tiny hairs to move dirt and mucus away from the lungs. Which of the following instruments would be best, and why?

Accepted Answer

A)   a light microscope, because it allows observations of whole, live cells
B)   a transmission electron microscope, because it has high resolution
C)   a scanning electron microscope, because it can reveal structures on cell surfaces
D)   a scanning electron microscope, because it can be used to observe whole cells without slicing themE) A) and C)
F) C) and D)

Question 12

The epidermis is made up of epithelial cells which are held tightly together side by side to prevent pathogens from entering the body and to prevent unnecessary water loss. What type of junction holds epithelial cells together to achieve this function?

Accepted Answer

A)   tight junction
B)   communicating junction
C)   gap junction
D)   anchoring junctionE) A) and D)
F) A) and C)

Question 13

Cell theory states that

Accepted Answer

A)   all living things are made of many cells.
B)   cells can be created from molecules spontaneously.
C)   all living things are composed of cells and that all cells come from other cells.
D)   cells make up living and nonliving substances.E) None of the above
F) All of the above

Exam 4: A Tour of the Cell

The nucleoid region of a prokaryotic cell

Correct Answer
verified

The extracellular matrix attached to cells via glycoproteins may then bind to ________ in the plasma membrane.

Correct Answer
verified

Cell theory states that

Correct Answer
verified

Which of the following structures is/are used by prokaryotes for attaching to surfaces?

Correct Answer
verified

Light microscopes

Correct Answer
verified

The stroma is the

Correct Answer
verified

You are told that the cells on a microscope slide are plant, animal, or bacterial. You look at them through a microscope and see cell walls and membrane-bound organelles. You conclude correctly that the cells

Correct Answer
verified

Which location in the cell is unlikely to contain ribosomes or ribosomal subunits?

Correct Answer
verified

The epidermis is made up of epithelial cells which are held tightly together side by side to prevent pathogens from entering the body and to prevent unnecessary water loss. What type of junction holds epithelial cells together to achieve this function?

Correct Answer
verified

A scientist wants to examine living cells lining the respiratory tract to determine how the cells use tiny hairs to move dirt and mucus away from the lungs. Which of the following instruments would be best, and why?

Correct Answer
verified

Which of the following statements regarding the Golgi apparatus is false?

Correct Answer
verified

The membranous compartmentalization of a cell

Correct Answer
verified

Which of the following cell structures are associated with the breakdown of harmful substances?

Correct Answer
verified

Exam 4: A Tour of the Cell

The nucleoid region of a prokaryotic cell

Correct AnswerverifiedShow Answer

The extracellular matrix attached to cells via glycoproteins may then bind to ________ in the plasma membrane.

Correct AnswerverifiedShow Answer

Cell theory states that

Correct AnswerverifiedShow Answer

Which of the following structures is/are used by prokaryotes for attaching to surfaces?

Correct AnswerverifiedShow Answer

Light microscopes

Correct AnswerverifiedShow Answer

The stroma is the

Correct AnswerverifiedShow Answer

You are told that the cells on a microscope slide are plant, animal, or bacterial. You look at them through a microscope and see cell walls and membrane-bound organelles. You conclude correctly that the cells

Correct AnswerverifiedShow Answer

Which location in the cell is unlikely to contain ribosomes or ribosomal subunits?

Correct AnswerverifiedShow Answer

The epidermis is made up of epithelial cells which are held tightly together side by side to prevent pathogens from entering the body and to prevent unnecessary water loss. What type of junction holds epithelial cells together to achieve this function?

Correct AnswerverifiedShow Answer

A scientist wants to examine living cells lining the respiratory tract to determine how the cells use tiny hairs to move dirt and mucus away from the lungs. Which of the following instruments would be best, and why?

Correct AnswerverifiedShow Answer

Which of the following statements regarding the Golgi apparatus is false?

Correct AnswerverifiedShow Answer

The membranous compartmentalization of a cell

Correct AnswerverifiedShow Answer

Which of the following cell structures are associated with the breakdown of harmful substances?

Correct AnswerverifiedShow Answer

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