Question 1

Why is it advantageous for cells to be small?

Accepted Answer

A)   A small cell size prevents a cell from weighing too much.
B)   A small cell is better able to conserve energy than a larger cell.
C)   A small cell size occupies less space in nature where space is limited.
D)   A small cell has a small surface area relative to volume, thereby facilitating ion balance.
E)   A small cell has a small volume relative to surface area, thereby increasing efficient transport.

Question 2

Identify two structural components of the cytoskeleton, and briefly describe their function(s).

Accepted Answer

Microtubules of the cytoskelet...

Question 3

As a result of testing an experimental drip on a vertebrate cell, you notice that the cell cortex becomes more fluid, and although the cell remains strong, it loses its ability to move. Based on this evidence, you correctly conclude that the drug most directly affected:

Accepted Answer

A)   myosin.
B)   β -tubulin.
C)   α -tubulin.
D)   actin filaments.
E)   intermediate filaments.

Question 4

Which of the following is a key component of the cytoskeleton?

Accepted Answer

A)   centrosome
B)   microtubules
C)   DNA
D)   ribosomes
E)   endoplasmic reticulum

Question 5

Figure 4-4  In the accompanying figure, the formation of carbohydrates from carbon dioxide and water occurs in the portion of labeled:

Accepted Answer

A)   A
B)   B
C)   C
D)   D
E)   E

Question 6

Which of the following pairs is correctly matched?

Accepted Answer

A)   middle lamella − cellulose
B)   integrins − receptors
C)   primary cell wall − pectin
D)   fibronectins − wood
E)   secondary cell wall − glycoproteins

Question 7

Upon observing a cell of a grass blade, you notice a prominent sac that occupies a large portion of the cell. Which organelle is this?

Accepted Answer

A)   nucleus
B)   vacuole
C)   lysosome
D)   chloroplasts
E)   mitochondria

Question 8

A single cell in a smoker's lung has become cancerous. It doubles its DNA and divides much faster than a normal lung cell. The most likely change that would have caused this condition took place in the:

Accepted Answer

A)   nucleus.
B)   nucleolus.
C)   lysosome.
D)   microtubule.
E)   mitochondria.

Question 9

Which process is a function of peroxisomes?

Accepted Answer

A)   cell death
B)   detoxification
C)   water storage
D)   protein synthesis
E)   DNA replication

Question 10

The smooth ER is the primary site for the synthesis of phospholipids and cholesterol needed to make ____.

Accepted Answer

A)   DNA
B)   ATP
C)   ribosomes
D)   hormones
E)   cell membranes

Question 11

DNA is associated with RNA and certain proteins, forming a complex called:

Accepted Answer

A)   chromosomes.
B)   chromatin.
C)   nucleoli.
D)   nucleus.
E)   genes.

Exam 4: Organization of the Cell

Which of the following is a key component of the cytoskeleton?

Correct Answer
verified

DNA is associated with RNA and certain proteins, forming a complex called:

Correct Answer
verified

The smooth ER is the primary site for the synthesis of phospholipids and cholesterol needed to make ____.

Correct Answer
verified

Figure 4-4 In the accompanying figure, the formation of carbohydrates from carbon dioxide and water occurs in the portion of labeled:

Correct Answer
verified

Why is it advantageous for cells to be small?

Correct Answer
verified

A single cell in a smoker's lung has become cancerous. It doubles its DNA and divides much faster than a normal lung cell. The most likely change that would have caused this condition took place in the:

Correct Answer
verified

Identify two structural components of the cytoskeleton, and briefly describe their function(s).

Correct Answer
verified
Microtubules of the cytoskelet...
View Answer

As a result of testing an experimental drip on a vertebrate cell, you notice that the cell cortex becomes more fluid, and although the cell remains strong, it loses its ability to move. Based on this evidence, you correctly conclude that the drug most directly affected:

Correct Answer
verified

Upon observing a cell of a grass blade, you notice a prominent sac that occupies a large portion of the cell. Which organelle is this?

Correct Answer
verified

Which process is a function of peroxisomes?

Correct Answer
verified

Which of the following pairs is correctly matched?

Correct Answer
verified

Exam 4: Organization of the Cell

Which of the following is a key component of the cytoskeleton?

Correct AnswerverifiedShow Answer

DNA is associated with RNA and certain proteins, forming a complex called:

Correct AnswerverifiedShow Answer

The smooth ER is the primary site for the synthesis of phospholipids and cholesterol needed to make ____.

Correct AnswerverifiedShow Answer

Figure 4-4 In the accompanying figure, the formation of carbohydrates from carbon dioxide and water occurs in the portion of labeled:

Correct AnswerverifiedShow Answer

Why is it advantageous for cells to be small?

Correct AnswerverifiedShow Answer

A single cell in a smoker's lung has become cancerous. It doubles its DNA and divides much faster than a normal lung cell. The most likely change that would have caused this condition took place in the:

Correct AnswerverifiedShow Answer

Identify two structural components of the cytoskeleton, and briefly describe their function(s).

Correct AnswerverifiedMicrotubules of the cytoskelet...View AnswerShow Answer

As a result of testing an experimental drip on a vertebrate cell, you notice that the cell cortex becomes more fluid, and although the cell remains strong, it loses its ability to move. Based on this evidence, you correctly conclude that the drug most directly affected:

Correct AnswerverifiedShow Answer

Upon observing a cell of a grass blade, you notice a prominent sac that occupies a large portion of the cell. Which organelle is this?

Correct AnswerverifiedShow Answer

Which process is a function of peroxisomes?

Correct AnswerverifiedShow Answer

Which of the following pairs is correctly matched?

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
Microtubules of the cytoskelet...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified