Question 1

The nucleus of a cell functions to

Accepted Answer

A) control and coordinate cellular activities. 
B) produce ATP. 
C) digest lipids. 
D) synthesize proteins. 
E) produce secretory vesicles. 
A) control and coordinate cellular activities. 
B) produce ATP. 
C) digest lipids. 
D) synthesize proteins. 
E) produce secretory vesicles.

Question 2

White blood cells digest other cells and so would be expected to

Accepted Answer

A) have mitochondria to energize them. 
B) have large numbers of lysosomes. 
C) possess cilia on their surfaces so they can move quickly. 
D) expel their nuclei to make room for all of the cells they eat. 
E) excrete excess salt as a result of all this eating. 
A) have mitochondria to energize them. 
B) have large numbers of lysosomes. 
C) possess cilia on their surfaces so they can move quickly. 
D) expel their nuclei to make room for all of the cells they eat. 
E) excrete excess salt as a result of all this eating.

Question 3

Salt was added to a beaker of distilled water (the water was not stirred).A sample taken from the bottom of the beaker was found to be 20% salt.At the same time,a sample taken from the top of the beaker was found to be 2% salt.After 24 hours

Accepted Answer

A) the difference in the percentage of salt between the top and bottom samples would increase. 
B) the percentage of salt in top and bottom samples would be approximately equal. 
C) the samples would still be 2% and 20% respectively. 
D) the salt would float to the top. 
E) None of these choices are correct. 
A) the difference in the percentage of salt between the top and bottom samples would increase. 
B) the percentage of salt in top and bottom samples would be approximately equal. 
C) the samples would still be 2% and 20% respectively. 
D) the salt would float to the top. 
E) None of these choices are correct.

Question 4

The greater the concentration of a solution,the greater the

Accepted Answer

A) osmotic pressure of the solution. 
B) rate of facilitated diffusion. 
C) tendency for water to diffuse from the solution. 
D) number of carrier molecules present. 
E) amount of solvent. 
A) osmotic pressure of the solution. 
B) rate of facilitated diffusion. 
C) tendency for water to diffuse from the solution. 
D) number of carrier molecules present. 
E) amount of solvent.

Question 5

Active transport

Accepted Answer

A) requires ATP. 
B) involves vesicle formation. 
C) does not require metabolic energy (ATP). 
D) can move substances along their concentration gradient. 
E) follows osmotic pressure gradients. 
A) requires ATP. 
B) involves vesicle formation. 
C) does not require metabolic energy (ATP). 
D) can move substances along their concentration gradient. 
E) follows osmotic pressure gradients.

Question 6

The movement of water through a selectively permeable membrane is called

Accepted Answer

A) facilitated diffusion. 
B) active transport. 
C) diffusion. 
D) osmosis. 
E) endocytosis. 
A) facilitated diffusion. 
B) active transport. 
C) diffusion. 
D) osmosis. 
E) endocytosis.

Question 7

What type of cell would have an abundance of peroxisomes?

Accepted Answer

A) mucus cell (secretes mucus) 
B) cardiac muscle cells (require large amounts of ATP) 
C) white blood cell,a phagocyte 
D) fibroblast (makes protein fibers) 
E) liver cells that detoxify hydrogen peroxide 
A) mucus cell (secretes mucus) 
B) cardiac muscle cells (require large amounts of ATP) 
C) white blood cell,a phagocyte 
D) fibroblast (makes protein fibers) 
E) liver cells that detoxify hydrogen peroxide

Question 8

Microvilli

Accepted Answer

A) are supported by microtubules. 
B) move the cell. 
C) increase the surface area of the cell. 
D) are extensions of the lysosomal membrane. 
E) function to make the cell mobile. 
A) are supported by microtubules. 
B) move the cell. 
C) increase the surface area of the cell. 
D) are extensions of the lysosomal membrane. 
E) function to make the cell mobile.

Question 9

-The cell is the basic unit of life.All cellular structures exhibit special functions.Match the structure with its function.What is the function of "B"?

Accepted Answer

A) major site of ATP synthesis when oxygen is available 
B) contains digestive enzymes 
C) site of protein synthesis 
D) directs cellular activities,contains DNA 
E) outer boundary of cell,controls entry and exit of substances 
A) major site of ATP synthesis when oxygen is available 
B) contains digestive enzymes 
C) site of protein synthesis 
D) directs cellular activities,contains DNA 
E) outer boundary of cell,controls entry and exit of substances

Question 10

In DNA replication,

Accepted Answer

A) new nucleotides are added at the 5' end of the growing DNA strand. 
B) only introns are replicated. 
C) DNA polymerase splices the short segments of the lagging strand together. 
D) the two existing strands are not used as templates. 
E) the leading strand is formed as a continuous strand. 
A) new nucleotides are added at the 5' end of the growing DNA strand. 
B) only introns are replicated. 
C) DNA polymerase splices the short segments of the lagging strand together. 
D) the two existing strands are not used as templates. 
E) the leading strand is formed as a continuous strand.

Question 11

Which of the following events occurs during anaphase?

Accepted Answer

A) The nuclear envelope degenerates. 
B) Chromosomes migrate to opposite poles of the cell. 
C) Chromatin strands condense to form chromosomes. 
D) Cytokinesis completes. 
E) Spindle fibers are formed. 
A) The nuclear envelope degenerates. 
B) Chromosomes migrate to opposite poles of the cell. 
C) Chromatin strands condense to form chromosomes. 
D) Cytokinesis completes. 
E) Spindle fibers are formed.

Question 12

Cells of the small intestine and kidney tubules have extensions that increase their surface area called

Accepted Answer

A) cilia. 
B) hairs. 
C) flagella. 
D) microvilli. 
E) ruguae. 
A) cilia. 
B) hairs. 
C) flagella. 
D) microvilli. 
E) ruguae.

Question 13

The shaft of a flagellum contains _____________ microtubule doublets around its periphery.

Accepted Answer

A) 9 
B) 2 + 9 
C) 2+7 
D) 7 
E) 2 
A) 9 
B) 2 + 9 
C) 2+7 
D) 7 
E) 2

Question 14

What type of cell has abundant mitochondria?

Accepted Answer

A) fibroblast (makes protein fibers) 
B) liver cells that detoxify hydrogen peroxide 
C) white blood cell,a phagocyte 
D) mucus cell (secretes mucus) 
E) cardiac muscle cells (require large amounts of ATP) 
A) fibroblast (makes protein fibers) 
B) liver cells that detoxify hydrogen peroxide 
C) white blood cell,a phagocyte 
D) mucus cell (secretes mucus) 
E) cardiac muscle cells (require large amounts of ATP)

Question 15

The predominant lipid in the cell membrane is a

Accepted Answer

A) triglyceride. 
B) glycolipid. 
C) phospholipid. 
D) prostaglandin. 
E) cholesterol. 
A) triglyceride. 
B) glycolipid. 
C) phospholipid. 
D) prostaglandin. 
E) cholesterol.

Question 16

A cell that breaks down and recycles proteins would have large numbers of

Accepted Answer

A) peroxisomes. 
B) secretory vesicles. 
C) proteosomes. 
D) lysosomes. 
E) rough ER. 
A) peroxisomes. 
B) secretory vesicles. 
C) proteosomes. 
D) lysosomes. 
E) rough ER.

Question 17

What is the only human cell with a flagellum?

Accepted Answer

A) red blood cells 
B) macrophage (large,mobile white blood cell) 
C) spermatozoa 
D) columnar cells of small intestines 
E) columnar cells of upper respiratory tract 
A) red blood cells 
B) macrophage (large,mobile white blood cell) 
C) spermatozoa 
D) columnar cells of small intestines 
E) columnar cells of upper respiratory tract

Question 18

What term dealing with cancer means "not inclined to spread or become worse'?

Accepted Answer

A) carcinoma 
B) sarcoma 
C) benign 
D) metastasis 
E) malignant 
A) carcinoma 
B) sarcoma 
C) benign 
D) metastasis 
E) malignant

Question 19

A toxic drug destroyed the Golgi apparatus.This would affect

Accepted Answer

A) packaging of glycoproteins and lipoproteins. 
B) energy production. 
C) microtubule production. 
D) intracellular digestion. 
E) ribosomal RNA synthesis. 
A) packaging of glycoproteins and lipoproteins. 
B) energy production. 
C) microtubule production. 
D) intracellular digestion. 
E) ribosomal RNA synthesis.

Question 20

-What structure does "A" represent on the diagram of the plasma membrane?

Accepted Answer

A) phospholipid bilayer 
B) internal membrane surface 
C) integral protein 
D) peripheral protein 
E) membrane channel protein 
A) phospholipid bilayer 
B) internal membrane surface 
C) integral protein 
D) peripheral protein 
E) membrane channel protein

Exam 3: Cell Biology

The nucleus of a cell functions to

White blood cells digest other cells and so would be expected to

Salt was added to a beaker of distilled water (the water was not stirred).A sample taken from the bottom of the beaker was found to be 20% salt.At the same time,a sample taken from the top of the beaker was found to be 2% salt.After 24 hours

The greater the concentration of a solution,the greater the

Active transport

The movement of water through a selectively permeable membrane is called

What type of cell would have an abundance of peroxisomes?

Microvilli

-The cell is the basic unit of life.All cellular structures exhibit special functions.Match the structure with its function.What is the function of "B"?

In DNA replication,

Which of the following events occurs during anaphase?

Cells of the small intestine and kidney tubules have extensions that increase their surface area called

The shaft of a flagellum contains _____________ microtubule doublets around its periphery.

What type of cell has abundant mitochondria?

The predominant lipid in the cell membrane is a

A cell that breaks down and recycles proteins would have large numbers of

What is the only human cell with a flagellum?

What term dealing with cancer means "not inclined to spread or become worse'?

A toxic drug destroyed the Golgi apparatus.This would affect

-What structure does "A" represent on the diagram of the plasma membrane?

The Human Organism

The Chemical Basis of Life

Tissues

Integumentary System

Skeletal System: Bones and Bone Tissue

Skeletal System: Gross Anatomy

Joints and Movement

Muscular System: Histology and Physiology

Muscular System: Gross Anatomy

Functional Organization of Nervous Tissue

Spinal Cord and Spinal Nerves

Brain and Cranial Nerves

Integration of Nervous System Functions

The Special Senses

Autonomic Nervous System

Functional Organization of the Endocrine System

Endocrine Glands

Cardiovascular System: Blood

Cardiovascular System: the Heart

Cardiovascular System: Blood Vessels and Circulation

Lymphatic System and Immunity

Respiratory System

Digestive System

Nutrition,metabolism,and Temperature Regulation

Urinary System

Water,electrolyte,and Acid-Based Balance

Reproductive System

Development,growth,aging,and Genetics

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