Question 1

Facilitated diffusion moves a substance following its concentration gradient,with the aid of a carrier protein.

Accepted Answer

A) True 
 B)False

Question 2

Energy is stored in ATP molecules in ribosomes.

Accepted Answer

A) True 
 B)False

Question 3

Bone cells and muscle cells differ in structure and function because

Accepted Answer

A)  each expresses a different subset of genes.
B)  each has different genes.
C)  each has different chromosomes.
D)  they express the same subset of genes.E) A) and B)
F) C) and D)

Question 4

During metaphase of mitosis,chromosomes first condense and become visible when stained and viewed under a microscope.

Accepted Answer

A) True 
 B)False

Question 5

All cell types can divide a limitless number of times.

Accepted Answer

A) True 
 B)False

Question 6

What characteristic do simple diffusion and facilitated diffusion share?

Accepted Answer

A)  Both require cellular energy for the transport of substances.
B)  Both move water across a semipermeable membrane.
C)  Both require a special carrier molecule to move substances across the membrane.
D)  Both move a substance from a region of higher concentration to one of lower concentration without cellular energy.E) B) and C)
F) A) and B)

Question 7

Which of the following describes a lysosome?

Accepted Answer

A)  A double-membraned organelle that is the "powerhouse" of the cell
B)  A complex network of interconnected membranes that is a communication system in the cell
C)  A tiny,membranous sac that contains enzymes that degrade worn cell parts and debris
D)  A nonmembranous structure that is essential for mitosisE) A) and B)
F) A) and C)

Question 8

Cilia and flagella extend from certain cells,enabling them to move.

Accepted Answer

A) True 
 B)False

Question 9

As a cell grows,

Accepted Answer

A)  the relationship between its surface area and volume remains unchanged.
B)  its surface area increases to a lesser degree than its volume.
C)  its volume increases to a lesser degree than its surface area.
D)  its requirement for nutrients increases to a lesser degree than its requirement for oxygen.E) All of the above
F) None of the above

Question 10

Chromosomes duplicate during

Accepted Answer

A)  prophase.
B)  interphase.
C)  metaphase.
D)  telophase.E) B) and D)
F) None of the above

Question 11

The movement of molecules through a membrane by filtration requires

Accepted Answer

A)  osmotic pressure.
B)  hydrostatic pressure.
C)  atmospheric pressure.
D)  barometric pressure.E) B) and C)
F) B) and D)

Question 12

During telophase of mitosis,chromosomes elongate and form chromatin threads.

Accepted Answer

A) True 
 B)False

Question 13

The three major parts of a cell are

Accepted Answer

A)  the endoplasmic reticulum,Golgi apparatus,and vesicles.
B)  the nucleus,nucleolus,and nuclear envelope.
C)  microtubules,ribosomes,and centrosomes.
D)  the nucleus,cytoplasm,and cell membrane.E) B) and D)
F) B) and C)

Question 14

All cell types divide at the same rate.

Accepted Answer

A) True 
 B)False

Question 15

Krabbe disease results from an abnormality that affects the _______ of nerve cells in the brain.

Accepted Answer

The answer of Krabbe disease results from an abnormality that...

Question 16

Filtration requires hydrostatic pressure.

Accepted Answer

A) True 
 B)False

Question 17

Cell division consists of mitosis (karyokinesis)and cell differentiation.

Accepted Answer

A) True 
 B)False

Question 18

Cytoplasm is located between the cell membrane and the nuclear envelope.

Accepted Answer

A) True 
 B)False

Question 19

The nucleus is in the nucleolus.

Accepted Answer

A) True 
 B)False

Question 20

Certain white blood cells take in bacterial cells by phagocytosis.

Accepted Answer

A) True 
 B)False

Exam 3: Cells

Energy is stored in ATP molecules in ribosomes.

Correct AnswerverifiedShow Answer

Cell division consists of mitosis (karyokinesis)and cell differentiation.

Correct AnswerverifiedShow Answer

Facilitated diffusion moves a substance following its concentration gradient,with the aid of a carrier protein.

Correct AnswerverifiedShow Answer

The movement of molecules through a membrane by filtration requires

Correct AnswerverifiedShow Answer

Chromosomes duplicate during

Correct AnswerverifiedShow Answer

The three major parts of a cell are

Correct AnswerverifiedShow Answer

Krabbe disease results from an abnormality that affects the _______ of nerve cells in the brain.

Correct AnswerverifiedShow Answer

Filtration requires hydrostatic pressure.

Correct AnswerverifiedShow Answer

Cytoplasm is located between the cell membrane and the nuclear envelope.

Correct AnswerverifiedShow Answer

The nucleus is in the nucleolus.

Correct AnswerverifiedShow Answer

All cell types can divide a limitless number of times.

Correct AnswerverifiedShow Answer

During metaphase of mitosis,chromosomes first condense and become visible when stained and viewed under a microscope.

Correct AnswerverifiedShow Answer

During telophase of mitosis,chromosomes elongate and form chromatin threads.

Correct AnswerverifiedShow Answer

Bone cells and muscle cells differ in structure and function because

Correct AnswerverifiedShow Answer

Cilia and flagella extend from certain cells,enabling them to move.

Correct AnswerverifiedShow Answer

As a cell grows,

Correct AnswerverifiedShow Answer

Which of the following describes a lysosome?

Correct AnswerverifiedShow Answer

All cell types divide at the same rate.

Correct AnswerverifiedShow Answer

Certain white blood cells take in bacterial cells by phagocytosis.

Correct AnswerverifiedShow Answer

What characteristic do simple diffusion and facilitated diffusion share?

Correct AnswerverifiedShow Answer

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