Question 1

In an E.coli cell,which molecule is found in only 1-2 copies per cell?

Accepted Answer

A)   DNA
B)   RNA
C)   protein
D)   phospholipids

Question 2

In this image a transmembrane protein moves circles out of the cell,providing energy to move squares into the cell.Which of the following is correct?

Accepted Answer

A)   Both the circles and the squares move down their concentration gradients.
B)   Both the circles and the squares move against their concentration gradients.
C)   The circles move down their concentration gradient and the squares move against their concentration gradient.
D)   The circles move against their concentration gradient and the squares move down their concentration gradient.

Question 3

In the process of ________,a vesicle fuses with the cell membrane,releasing vesicle contents into the extracellular environment.

Accepted Answer

The answer of In the process of ________,a vesicle fuses...

Question 4

Would pili be more advantageous to bacteria in a rapidly changing or in an unchanging environment? Please explain your answer.

Accepted Answer

Pili promote bacterial adherence to a su...

Question 5

This image models a

Accepted Answer

A)   Gram-positive cell envelope.
B)   Gram-negative cell envelope.
C)   eukaryotic cell membrane.
D)   mycobacterial envelope.

Question 6

The ability of bacterial cells to swim toward favorable environments and away from harmful environments is known as ________.

Accepted Answer

The answer of The ability of bacterial cells to swim...

Question 7

The arrows indicate the partition that separates a bacterial cell into two new daughter cells.This partition is called the

Accepted Answer

A)   stalk.
B)   S-layer.
C)   septum.
D)   termination site.

Question 8

What is the cellular target of penicillin (the first antibiotic discovered) ?

Accepted Answer

A)   the DNA genome
B)   the cell wall
C)   ribosomes
D)   ABC transporters

Question 9

Which of the following helps compact bacterial DNA?

Accepted Answer

A)   the origin of replication site
B)   supercoils
C)   porins
D)   pilins

Question 10

In the image shown the circles and squares indicate molecules.The circles are at a higher concentration outside the cell and the squares are at a higher concentration inside the cell.Which of the following statements is correct?

Accepted Answer

A)   Energy is released if the circles move into the cell or if the squares move out of the cell.
B)   Energy is released if the circles move into the cell or if the squares move into the cell.
C)   Energy is released if the circles move out of the cell or if the squares move out of the cell.
D)   Energy is released if the circles move out of the cell or if the squares move into the cell.

Question 11

In this model of a Gram-negative bacterial cell envelope,which line is drawn to lipopolysaccharides?

Accepted Answer

A)   1
B)   2
C)   3
D)   4

Question 12

What evidence would suggest that a newly discovered eukaryotic organelle was formed via endosymbiosis?

Accepted Answer

The evidence for mitochondria and chloro...

Question 13

How does the cell wall protect bacterial cells from osmotic shock?

Accepted Answer

A)   The wall forms a rigid cage that withstands turgor pressure.
B)   The wall is impermeable to water,preventing turgor pressure.
C)   The wall is impermeable to ions and other solutes,preventing osmotic imbalance.
D)   The wall ensures cells are only found in environments where turgor pressure will not occur.

Exam 5: Cell Biology of Bacteria and Eukaryotes

The arrows indicate the partition that separates a bacterial cell into two new daughter cells.This partition is called the

Correct Answer
verified

In the process of ________,a vesicle fuses with the cell membrane,releasing vesicle contents into the extracellular environment.

Correct Answer
verified

The ability of bacterial cells to swim toward favorable environments and away from harmful environments is known as ________.

Correct Answer
verified

In the image shown the circles and squares indicate molecules.The circles are at a higher concentration outside the cell and the squares are at a higher concentration inside the cell.Which of the following statements is correct?

Correct Answer
verified

In an E.coli cell,which molecule is found in only 1-2 copies per cell?

Correct Answer
verified

What evidence would suggest that a newly discovered eukaryotic organelle was formed via endosymbiosis?

Correct Answer
verified
The evidence for mitochondria and chloro...
View Answer

In this image a transmembrane protein moves circles out of the cell,providing energy to move squares into the cell.Which of the following is correct?

Correct Answer
verified

In this model of a Gram-negative bacterial cell envelope,which line is drawn to lipopolysaccharides?

Correct Answer
verified

Would pili be more advantageous to bacteria in a rapidly changing or in an unchanging environment? Please explain your answer.

Correct Answer
verified
Pili promote bacterial adherence to a su...
View Answer

Which of the following helps compact bacterial DNA?

Correct Answer
verified

What is the cellular target of penicillin (the first antibiotic discovered) ?

Correct Answer
verified

This image models a

Correct Answer
verified

How does the cell wall protect bacterial cells from osmotic shock?

Correct Answer
verified

Exam 5: Cell Biology of Bacteria and Eukaryotes

The arrows indicate the partition that separates a bacterial cell into two new daughter cells.This partition is called the

Correct AnswerverifiedShow Answer

In the process of ________,a vesicle fuses with the cell membrane,releasing vesicle contents into the extracellular environment.

Correct AnswerverifiedShow Answer

The ability of bacterial cells to swim toward favorable environments and away from harmful environments is known as ________.

Correct AnswerverifiedShow Answer

In the image shown the circles and squares indicate molecules.The circles are at a higher concentration outside the cell and the squares are at a higher concentration inside the cell.Which of the following statements is correct?

Correct AnswerverifiedShow Answer

In an E.coli cell,which molecule is found in only 1-2 copies per cell?

Correct AnswerverifiedShow Answer

What evidence would suggest that a newly discovered eukaryotic organelle was formed via endosymbiosis?

Correct AnswerverifiedThe evidence for mitochondria and chloro...View AnswerShow Answer

In this image a transmembrane protein moves circles out of the cell,providing energy to move squares into the cell.Which of the following is correct?

Correct AnswerverifiedShow Answer

In this model of a Gram-negative bacterial cell envelope,which line is drawn to lipopolysaccharides?

Correct AnswerverifiedShow Answer

Would pili be more advantageous to bacteria in a rapidly changing or in an unchanging environment? Please explain your answer.

Correct AnswerverifiedPili promote bacterial adherence to a su...View AnswerShow Answer

Which of the following helps compact bacterial DNA?

Correct AnswerverifiedShow Answer

What is the cellular target of penicillin (the first antibiotic discovered) ?

Correct AnswerverifiedShow Answer

This image models a

Correct AnswerverifiedShow Answer

How does the cell wall protect bacterial cells from osmotic shock?

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
The evidence for mitochondria and chloro...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
Pili promote bacterial adherence to a su...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
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