Question 1

For which of the following organelles is the structure and function correctly described?

Accepted Answer

A)  Endoplasmic reticulum-a network of interconnected membranes forming sacs and canals that packages protein molecules for secretion
B)  Ribosomes-membranous vesicles containing digestive enzymes
C)  Golgi apparatus-particles,composed of protein and RNA,which synthesize proteins
D)  Mitochondrion-nonmembranous structure that synthesizes proteinsE) B) and C)
F) A) and D)

Question 2

The nucleolus contains

Accepted Answer

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

Question 3

The cytoplasm consists of organelles suspended in _________.

Accepted Answer

The answer of The cytoplasm consists of organelles suspended in...

Question 4

Which of the following is isotonic to red blood cells?

Accepted Answer

A)  0.9% NaCl solution
B)  Distilled water
C)  0.9% glucose solution
D)  AlcoholE) B) and D)
F) All of the above

Question 5

Smooth endoplasmic reticulum has ribosomes and rough endoplasmic reticulum does not.

Accepted Answer

A) True 
 B)False

Question 6

The Golgi apparatus and endoplasmic reticulum take part in secretion.

Accepted Answer

A) True 
 B)False

Question 7

Cellular adhesion molecules are

Accepted Answer

A)  peripheral proteins.
B)  integral proteins.
C)  lipids.
D)  receptors.E) B) and D)
F) All of the above

Question 8

During anaphase of mitosis,centromeres separate and replicated chromosomes separate.

Accepted Answer

A) True 
 B)False

Question 9

Centromeres of replicated chromosomes separate during mitotic

Accepted Answer

A)  prophase.
B)  metaphase.
C)  anaphase.
D)  telophase.E) B) and D)
F) A) and D)

Question 10

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

Accepted Answer

A) True 
 B)False

Question 11

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) None of the above
F) All of the above

Question 12

The framework of a cell membrane is a lipid bilayer.

Accepted Answer

A) True 
 B)False

Question 13

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) B) and D)
F) All of the above

Question 14

During apoptosis

Accepted Answer

A)  chromosomes join.
B)  the cytoskeleton forms large,complex structures.
C)  mitochondria merge.
D)  the cell can no longer adhere to other cells.E) A) and D)
F) All of the above

Question 15

Osmosis is the movement of

Accepted Answer

A)  molecules from a high concentration to a low concentration.
B)  water molecules from a high concentration to a low concentration through a selectively permeable membrane.
C)  water molecules from a low concentration to a high concentration through a selectively permeable membrane.
D)  ions from a low pressure region to a high pressure region through a selectively permeable membrane.E) None of the above
F) C) and D)

Question 16

A partly specialized cell that is the daughter of a stem cell is a ________ cell.

Accepted Answer

The answer of A partly specialized cell that is the...

Question 17

Stem cells taken from a person to be used to treat a disease in that same person come from

Accepted Answer

A)  embryos or fetuses.
B)  the person or a blood relative.
C)  existing cell populations or reprogrammed cells.
D)  two different cell types.E) C) and D)
F) A) and C)

Question 18

The two types of genes that,when abnormal,cause cancer are

Accepted Answer

A)  kinases and cyclins.
B)  oncosuppressors and tumor activators.
C)  metastatic activators and apoptosis stimulators.
D)  tumor suppressors and oncogenes.E) None of the above
F) A) and D)

Question 19

The relationship of osmotic pressure and the number of solute particles in a solution is the

Accepted Answer

A)  lower the number of solute particles,the greater the osmotic pressure.
B)  greater the number of solute particles,the lower the osmotic pressure.
C)  greater the osmotic pressure,the lower the number of solute particles.
D)  greater the number of solute particles,the greater the osmotic pressure.E) A) and C)
F) A) and D)

Question 20

The main function of cristae is to

Accepted Answer

A)  supply enzymes for reactions.
B)  increase chemical transport in mitochondria.
C)  facilitate diffusion of substances into the mitochondria.
D)  increase the surface area for chemical reactions.E) B) and C)
F) A) and C)

Exam 3: Cells

The nucleolus contains

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The defining characteristic of a stem cell is

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During apoptosis

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For which of the following organelles is the structure and function correctly described?

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Osmosis is the movement of

Correct AnswerverifiedShow Answer

The two types of genes that,when abnormal,cause cancer are

Correct AnswerverifiedShow Answer

Stem cells taken from a person to be used to treat a disease in that same person come from

Correct AnswerverifiedShow Answer

The relationship of osmotic pressure and the number of solute particles in a solution is the

Correct AnswerverifiedShow Answer

The cytoplasm consists of organelles suspended in _________.

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Smooth endoplasmic reticulum has ribosomes and rough endoplasmic reticulum does not.

Correct AnswerverifiedShow Answer

The Golgi apparatus and endoplasmic reticulum take part in secretion.

Correct AnswerverifiedShow Answer

The main function of cristae is to

Correct AnswerverifiedShow Answer

A partly specialized cell that is the daughter of a stem cell is a ________ cell.

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Centromeres of replicated chromosomes separate during mitotic

Correct AnswerverifiedShow Answer

DNA molecules are in the nucleus

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Which of the following is isotonic to red blood cells?

Correct AnswerverifiedShow Answer

During anaphase of mitosis,centromeres separate and replicated chromosomes separate.

Correct AnswerverifiedShow Answer

Cellular adhesion molecules are

Correct AnswerverifiedShow Answer

The framework of a cell membrane is a lipid bilayer.

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

Correct AnswerverifiedShow Answer

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