Question 1

In moving from the outside environment to the inside of the cell,the first layer of a bacterium encountered would be

Accepted Answer

A)   the nucleus.
B)   the capsule.
C)   the cell wall.
D)   the cell membrane.
E)   the DNA.F) A) and E)
G) B) and D)

Question 2

Which organelle will give off oxygen and use up carbon dioxide in plants?

Accepted Answer

A)   Golgi apparatus
B)   rough endoplasmic reticulum
C)   lysosomes
D)   mitochondria
E)   chloroplastsF) B) and D)
G) B) and C)

Question 3

What evidence suggests that proteins are synthesized and modified in the rough ER as opposed to the smooth ER?

Accepted Answer

A)   ribosomes are associated with the surface of the rough ER.
B)   ribosomes are associated with the surface of the smooth ER.
C)   proteins can be found in the membrane of the rough ER but not the smooth ER.
D)   the smooth ER functions in the synthesis of phospholipids.
E)   smooth ER is continuous with rough ER.F) B) and D)
G) All of the above

Question 4

If cells were moved to a low-gravity environment,such as in space exploration,a change would most likely be expected in the

Accepted Answer

A)   nucleus and the genetic process.
B)   chloroplast and energy capture.
C)   cytoskeleton.
D)   vacuoles and lysosomes.
E)   mitochondrion and energy release.F) A) and C)
G) A) and B)

Question 5

Which is NOT a correct association of cell organelles and function?

Accepted Answer

A)   lysosome-intracellular digestion
B)   mitochondrion-cell respiration
C)   ribosome-production of proteins
D)   cell wall-regulate molecule passage in and out of animal cells
E)   vacuole-storage of chemicalsF) A) and B)
G) A) and C)

Question 6

Centrioles

Accepted Answer

A)   consist of 9 + 2 pattern.
B)   are composed of microtubule triplets.
C)   carry on cellular respiration.
D)   are found in plant cells.
E)   are composed of actin.F) A) and E)
G) A) and B)

Question 7

Which nuclear structure(s) contain(s) the hereditary material?

Accepted Answer

A)   nuclear envelope
B)   chloroplasts
C)   chromatin
D)   nucleoplasm
E)   mitochondriaF) B) and E)
G) None of the above

Question 8

Which of the following would not be a function of the peroxisomes?

Accepted Answer

A)   break down fats in the liver
B)   produce bile salts in the liver
C)   help germinating seeds convert fatty acids into molecules that can be converted to sugars
D)   storage of toxic materials in the cell
E)   metabolism that uses oxygen and releases carbon dioxide in leavesF) B) and E)
G) B) and C)

Question 9

The "powerhouse" of the cell is the

Accepted Answer

A)   chloroplast.
B)   mitochondria.
C)   Golgi apparatus.
D)   ribosome.
E)   centriole.F) A) and B)
G) All of the above

Question 10

Within eukaryotic cells,the ____ is surrounded by a double membrane and carries the coding that determines protein synthesis.

Accepted Answer

A)   smooth endoplasmic reticulum
B)   chloroplast
C)   nucleolus
D)   nucleus
E)   rough endoplasmic reticulumF) A) and B)
G) None of the above

Question 11

Which of the following structures are NOT found in the cytoplasm?

Accepted Answer

A)   mitochondria
B)   chloroplast
C)   chromosomes
D)   nucleus
E)   lysosomeF) All of the above
G) A) and B)

Question 12

The motor molecules associated with actin are called

Accepted Answer

A)   centrosomes.
B)   centrioles.
C)   dynein.
D)   myosin.
E)   kinesin.F) A) and B)
G) All of the above

Question 13

If an active cell produces an important protein for secretion,what sequence of organelles might we examine for the origin of that secretion?

Accepted Answer

A)   endoplasmic reticulum-to-ribosomes-to-Golgi apparatus
B)   ribosomes-to-endoplasmic reticulum-to-Golgi apparatus
C)   endoplasmic reticulum-to-Golgi apparatus-to-ribosomes
D)   Golgi apparatus-to-endoplasmic reticulum-to-ribosomes
E)   ribosomes-to-Golgi apparatus-to-endoplasmic reticulumF) None of the above
G) C) and D)

Question 14

Circulating red blood cells in your body do not contain a nucleus and other organelles.Are these cells living?

Accepted Answer

A)   Yes, because they are actively metabolizing and once contained organelles.
B)   Yes, because they are capable of moving throughout the body in the circulation.
C)   No, because they do not contain a nucleus, they cannot be living.
D)   No, because red blood cells do not actively metabolize.
E)   No, because they are now only part of a once living cell.F) B) and D)
G) A) and C)

Question 15

Brock's father has inherited a mitochondrial disease.Is Brock in danger of also having this disease?

Accepted Answer

The answer of Brock's father has inherited a mitochondrial disease.Is...

Question 16

Which structure regulates passage of molecules into and out of the bacterial cell?

Accepted Answer

A)   plasma membrane
B)   nucleus
C)   mitochondria
D)   chloroplast
E)   flagellaF) A) and B)
G) All of the above

Question 17

Which organelle has 13 rows of tubulin dimers around an empty central core?

Accepted Answer

A)   flagella
B)   microtubules
C)   actin filaments
D)   intermediate filaments
E)   ciliaF) A) and B)
G) C) and D)

Question 18

Tay-Sachs is a serious childhood metabolic disorder where ____ fail to digest certain lipids.

Accepted Answer

A)   lysosomes
B)   nucleolus
C)   mitochondria
D)   Golgi apparatus
E)   centriolesF) All of the above
G) B) and D)

Question 19

In plants,chloroplasts are necessary for

Accepted Answer

A)   respiration.
B)   secretion.
C)   photosynthesis.
D)   storage.
E)   cell movement.F) A) and D)
G) A) and C)

Question 20

Surface-area-to-volume ratios indicate

Accepted Answer

A)   cells must exceed a certain minimum size.
B)   as cells get larger, their surface area actually decreases.
C)   largest cells have less proportionate need for food intake and waste removal.
D)   a chicken egg is one cell thus demonstrating the upper limit for metabolizing cell size.
E)   as cells get larger, their surface area gets larger but at a slower rate than the volume increases.F) C) and E)
G) B) and D)

Exam 3: Cell Structure and Function

If an active cell produces an important protein for secretion,what sequence of organelles might we examine for the origin of that secretion?

Correct AnswerverifiedShow Answer

Which is NOT a correct association of cell organelles and function?

Correct AnswerverifiedShow Answer

If cells were moved to a low-gravity environment,such as in space exploration,a change would most likely be expected in the

Correct AnswerverifiedShow Answer

The "powerhouse" of the cell is the

Correct AnswerverifiedShow Answer

Which organelle has 13 rows of tubulin dimers around an empty central core?

Correct AnswerverifiedShow Answer

Which organelle will give off oxygen and use up carbon dioxide in plants?

Correct AnswerverifiedShow Answer

Surface-area-to-volume ratios indicate

Correct AnswerverifiedShow Answer

Within eukaryotic cells,the ____ is surrounded by a double membrane and carries the coding that determines protein synthesis.

Correct AnswerverifiedShow Answer

In moving from the outside environment to the inside of the cell,the first layer of a bacterium encountered would be

Correct AnswerverifiedShow Answer

What evidence suggests that proteins are synthesized and modified in the rough ER as opposed to the smooth ER?

Correct AnswerverifiedShow Answer

Which nuclear structure(s) contain(s) the hereditary material?

Correct AnswerverifiedShow Answer

Centrioles

Correct AnswerverifiedShow Answer

Which structure regulates passage of molecules into and out of the bacterial cell?

Correct AnswerverifiedShow Answer

Which of the following would not be a function of the peroxisomes?

Correct AnswerverifiedShow Answer

Tay-Sachs is a serious childhood metabolic disorder where ____ fail to digest certain lipids.

Correct AnswerverifiedShow Answer

In plants,chloroplasts are necessary for

Correct AnswerverifiedShow Answer

Circulating red blood cells in your body do not contain a nucleus and other organelles.Are these cells living?

Correct AnswerverifiedShow Answer

Brock's father has inherited a mitochondrial disease.Is Brock in danger of also having this disease?

Correct AnswerverifiedShow Answer

The motor molecules associated with actin are called

Correct AnswerverifiedShow Answer

Which of the following structures are NOT found in the cytoplasm?

Correct AnswerverifiedShow Answer

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