Question 1

The microfilaments that allow cells to move contain the protein ____________________.

Accepted Answer

The answer of The microfilaments that allow cells to move...

Question 2

A screen door allows breezes to enter and aromas to exit but keeps out insects. Its function most resembles

Accepted Answer

A)  the cytosol.
B)  the plasma membrane.
C)  the ER lumen.
D)  a ribosome.E) None of the above
F) All of the above

Question 3

The movements of wound-healing fibroblasts in your body depend on pseudopodia that can extend and retract, because the microfilaments in them can rapidly change their length.

Accepted Answer

A) True 
 B)False  True

Question 4

The process of photosynthesis

Accepted Answer

A)  breaks down sugars to create ATP.
B)  traps light energy in an energy carrier like ATP.
C)  produces carbon dioxide.
D)  occurs in some animal cells.E) B) and C)
F) C) and D)

Question 5

Prokaryotes and eukaryotes are primarily distinguished by the absence or presence of internal membrane-bound organelles. Are prokaryotic cells at an evolutionary disadvantage because they lack organelles?

Accepted Answer

A)  Yes; without organelles, prokaryotic cells cannot photosynthesize or respire.
B)  Yes; without organelles, prokaryotes are unable to bring together the reactants needed for biological reactions.
C)  No; although prokaryotic cells are comparatively less efficient than eukaryotic cells, they are still able to carry out the processes necessary for survival and reproduction.
D)  No; eukaryotic organelles are expelled each time the cell divides.E) A) and D)
F) B) and C)

Question 6

The membrane known as the _____ contains light-capturing pigments like chlorophyll.

Accepted Answer

A)  pore
B)  envelope
C)  crista
D)  thylakoidE) A) and B)
F) A) and C)

Question 7

The Golgi apparatus

Accepted Answer

A)  is the place where a cell's genetic material is stored.
B)  sorts proteins and lipids and sends them to their final destination.
C)  captures energy from sunlight and sends it to mitochondria.
D)  creates energy by converting ribosomes to proteins.E) B) and C)
F) A) and B)

Question 8

DNA analysis supports the hypothesis that prokaryotes evolved from earlier eukaryotes through adaptive simplification-a process where unnecessary cellular structures are gradually lost.

Accepted Answer

A) True 
 B)False

Question 9

Biologists call an agent that spreads an infectious disease a vector. What is the vector for malaria?

Accepted Answer

A)  a protist of the species Plasmodium
B)  a mosquito of the species Anopheles
C)  a bacterium of the species Listeria
D)  The vector is presently unidentified.E) A) and D)
F) C) and D)

Question 10

The ____________________ endoplasmic reticulum is covered with ribosomes.

Accepted Answer

The answer of The ____________________ endoplasmic reticulum is covered with...

Question 11

Which of the following structures in not found in all types of cells?

Accepted Answer

A)  cytoplasm
B)  ribosomes
C)  a nucleus
D)  a plasma membraneE) B) and D)
F) C) and D)

Question 12

Humans become infected with malaria when bitten by an infected mosquito, whereas mosquitoes become infected after having bitten an infected ____________________.

Accepted Answer

human

Question 13

In eukaryotic cells both the nucleus and mitochondria have double membranes.

Accepted Answer

A) True 
 B)False

Question 14

A membrane that is selectively permeable causes damage to the cell by allowing solutes to enter and leave the cell indiscriminately.

Accepted Answer

A) True 
 B)False

Question 15

At the most basic level of life, organic compounds are organized into energy-dependent, self-replicating units known as ____________________.

Accepted Answer

The answer of At the most basic level of life,...

Question 16

Which of the following is correctly matched?

Accepted Answer

A)  cilia-microfilaments
B)  flagella-tubulin
C)  pseudopodia-intermediate filaments
D)  microfilaments-keratinE) C) and D)
F) B) and D)

Question 17

Your muscle cells need large amounts of ATP to function in the movement of your body. Which of the following organelles would you expect to be especially abundant in muscle cells?

Accepted Answer

A)  mitochondria
B)  ribosomes
C)  smooth endoplasmic reticulum
D)  lysosomesE) A) and B)
F) None of the above

Question 18

The figure below shows a mitochondrion, emphasizing its inner and outer membranes. 
The inner membrane of the mitochondria is thought to have evolved from

Accepted Answer

A)  a bit of plasma membrane from the early eukaryotic cell that engulfed a bacterium.
B)  the membrane surrounding the lysosome that engulfed a bacterium once it was inside an early eukaryotic cell.
C)  the plasma membrane of a prokaryotic cell engulfed by an early eukaryotic cell.
D)  infoldings of the plasma membrane of an early eukaryotic cell.E) A) and B)
F) A) and C)

Question 19

Certain cells in the mouth produce large amounts of the enzyme amylase, a component of saliva that hydrolyzes carbohydrate. Which of the following organelles would be expected to be especially abundant in these cells?

Accepted Answer

A)  chloroplasts
B)  mitochondria
C)  rough endoplasmic reticulum
D)  lysosomesE) A) and C)
F) A) and D) C

Question 20

Eukaryotic cells contain membrane-bound organelles.

Accepted Answer

A) True 
 B)False

Exam 6: Cell Structure and Internal Compartments

The microfilaments that allow cells to move contain the protein ____________________.

Correct AnswerverifiedShow Answer

A screen door allows breezes to enter and aromas to exit but keeps out insects. Its function most resembles

Correct AnswerverifiedShow Answer

The movements of wound-healing fibroblasts in your body depend on pseudopodia that can extend and retract, because the microfilaments in them can rapidly change their length.

Correct AnswerverifiedTrue

The process of photosynthesis

Correct AnswerverifiedShow Answer

Prokaryotes and eukaryotes are primarily distinguished by the absence or presence of internal membrane-bound organelles. Are prokaryotic cells at an evolutionary disadvantage because they lack organelles?

Correct AnswerverifiedShow Answer

The membrane known as the _____ contains light-capturing pigments like chlorophyll.

Correct AnswerverifiedShow Answer

The Golgi apparatus

Correct AnswerverifiedShow Answer

DNA analysis supports the hypothesis that prokaryotes evolved from earlier eukaryotes through adaptive simplification-a process where unnecessary cellular structures are gradually lost.

Correct AnswerverifiedShow Answer

Biologists call an agent that spreads an infectious disease a vector. What is the vector for malaria?

Correct AnswerverifiedShow Answer

The ____________________ endoplasmic reticulum is covered with ribosomes.

Correct AnswerverifiedShow Answer

Which of the following structures in not found in all types of cells?

Correct AnswerverifiedShow Answer

Humans become infected with malaria when bitten by an infected mosquito, whereas mosquitoes become infected after having bitten an infected ____________________.

Correct Answerverifiedhuman

In eukaryotic cells both the nucleus and mitochondria have double membranes.

Correct AnswerverifiedShow Answer

A membrane that is selectively permeable causes damage to the cell by allowing solutes to enter and leave the cell indiscriminately.

Correct AnswerverifiedShow Answer

At the most basic level of life, organic compounds are organized into energy-dependent, self-replicating units known as ____________________.

Correct AnswerverifiedShow Answer

Which of the following is correctly matched?

Correct AnswerverifiedShow Answer

Your muscle cells need large amounts of ATP to function in the movement of your body. Which of the following organelles would you expect to be especially abundant in muscle cells?

Correct AnswerverifiedShow Answer

The figure below shows a mitochondrion, emphasizing its inner and outer membranes. The inner membrane of the mitochondria is thought to have evolved from

Correct AnswerverifiedShow Answer

Certain cells in the mouth produce large amounts of the enzyme amylase, a component of saliva that hydrolyzes carbohydrate. Which of the following organelles would be expected to be especially abundant in these cells?

Correct AnswerverifiedC

Eukaryotic cells contain membrane-bound organelles.

Correct AnswerverifiedShow Answer

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True

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human

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C

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