Question 1

The Golgi apparatus and endoplasmic reticulum take part in secretion.

Accepted Answer

A) True 
 B)False

Question 2

A protein that spans the cell membrane is termed a(n)

Accepted Answer

A)  receptor protein.
B)  integral protein.
C)  peripheral protein.
D)  anchoring protein.E) None of the above
F) A) and D)

Question 3

The structures in the nucleus that serve as a "mitotic clock" are

Accepted Answer

A)  telomeres.
B)  kinases.
C)  ribosomes.
D)  hormones.E) B) and C)
F) All of the above

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

Solutions that have a higher osmotic pressure than body fluids are ________.

Accepted Answer

The answer of Solutions that have a higher osmotic pressure...

Question 6

A stem cell divides to give rise to two differentiated cells.

Accepted Answer

A) True 
 B)False

Question 7

The nucleolus contains

Accepted Answer

A)  DNA only.
B)  RNA and protein.
C)  DNA and protein.
D)  RNA only.E) C) and D)
F) A) and B)

Question 8

In phagocytosis

Accepted Answer

A)  a cell membrane engulfs solid particles.
B)  a particle enters a cell by moving down its concentration gradient.
C)  a cell membrane engulfs droplets.
D)  a carrier molecule moves a substance across a cell membrane using ATP.E) B) and D)
F) None of the above

Question 9

DNA molecules are in the nucleus

Accepted Answer

A)  as free molecules.
B)  complexed with protein, forming chromatin fibers.
C)  complexed with protein, forming nucleoli.
D)  complexed with protein on the nuclear envelope.E) All of the above
F) A) and B)

Question 10

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) All of the above
F) A) and C)

Question 11

Molecules bind to receptor sites and are enclosed in vesicles in the process of

Accepted Answer

A)  pinocytosis.
B)  phagocytosis.
C)  receptor-mediated endocytosis.
D)  exocytosis.E) None of the above
F) A) and C)

Question 12

If a human cell has 23 chromosomes, it likely just finished

Accepted Answer

A)  mitosis.
B)  meiosis.
C)  cytokinesis.
D)  osmosis.E) A) and B)
F) All of the above

Question 13

Cell division consists of mitosis and cell differentiation.

Accepted Answer

A) True 
 B)False

Question 14

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) None of the above

Question 15

Programmed cell death occurs during development, including the removal of webbing between fingers of the fetus. This process is known as

Accepted Answer

A)  cell specialization.
B)  apoptosis.
C)  mitosis.
D)  cell differentiation.E) A) and D)
F) B) and D)

Question 16

The defining characteristic of a stem cell is

Accepted Answer

A)  self-repair.
B)  self-renewal.
C)  the ability to turn into a cancer cell.
D)  origin from a progenitor cell.E) All of the above
F) A) and B)

Question 17

All cell types can divide a limitless number of times.

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

Cells are placed in a solution that causes them to absorb liquid until they burst. When more water is removed from the solution, newly added cells do not burst. The original solutions was ________ , while the second was ________ to the cells.

Accepted Answer

A)  isotonic; hypotonic
B)  isotonic; hypertonic
C)  hypotonic; isotonic
D)  hypertonic; isotonicE) C) and D)
F) A) and B)

Question 20

About how many cells constitute the body of an adult?

Accepted Answer

A)  50 to 100 million
B)  50 to 100 billion
C)  50 to 100 trillion
D)  50 to 100 quadrillionE) A) and B)
F) A) and C)

Exam 3: Cells

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

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Solutions that have a higher osmotic pressure than body fluids are ________.

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DNA molecules are in the nucleus

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If a human cell has 23 chromosomes, it likely just finished

Correct AnswerverifiedShow Answer

About how many cells constitute the body of an adult?

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A protein that spans the cell membrane is termed a(n)

Correct AnswerverifiedShow Answer

A stem cell divides to give rise to two differentiated cells.

Correct AnswerverifiedShow Answer

The structures in the nucleus that serve as a "mitotic clock" are

Correct AnswerverifiedShow Answer

In phagocytosis

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Cells are placed in a solution that causes them to absorb liquid until they burst. When more water is removed from the solution, newly added cells do not burst. The original solutions was ________ , while the second was ________ to the cells.

Correct AnswerverifiedShow Answer

Which of the following describes a lysosome?

Correct AnswerverifiedShow Answer

The defining characteristic of a stem cell is

Correct AnswerverifiedShow Answer

Bone cells and muscle cells differ in structure and function because

Correct AnswerverifiedShow Answer

Cell division consists of mitosis and cell differentiation.

Correct AnswerverifiedShow Answer

Programmed cell death occurs during development, including the removal of webbing between fingers of the fetus. This process is known as

Correct AnswerverifiedShow Answer

The nucleolus contains

Correct AnswerverifiedShow Answer

All cell types can divide a limitless number of times.

Correct AnswerverifiedShow Answer

The Golgi apparatus and endoplasmic reticulum take part in secretion.

Correct AnswerverifiedShow Answer

Molecules bind to receptor sites and are enclosed in vesicles in the process of

Correct AnswerverifiedShow Answer

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Cells are placed in a solution that causes them to absorb liquid until they burst. When more water is removed from the solution, newly added cells do not burst. The original solutions was , while the second was to the cells.

Correct Answer
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