Question 1

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

Accepted Answer

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

Question 2

The sacs containing hydrolytic enzymes are called

Accepted Answer

A)  lysosomes. 
B)  mitochondria. 
C)  centrioles. 
D)  ribosomes. 
E)  nucleus. 
A)  lysosomes. 
B)  mitochondria. 
C)  centrioles. 
D)  ribosomes. 
E)  nucleus.

Question 3

The _____________ contains the genetic information of the cell.

Accepted Answer

A)  nucleolus 
B)  nucleoplasm 
C)  nucleus 
D)  nucleosome 
E)  ribosome 
A)  nucleolus 
B)  nucleoplasm 
C)  nucleus 
D)  nucleosome 
E)  ribosome

Question 4

The organelle that protects cells from the damaging effects of medications and toxins is the

Accepted Answer

A)  microtubule. 
B)  mitochondria. 
C)  ribosome. 
D)  secretory vesicle. 
E)  smooth endoplasmic reticulum. 
A)  microtubule. 
B)  mitochondria. 
C)  ribosome. 
D)  secretory vesicle. 
E)  smooth endoplasmic reticulum.

Question 5

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 6

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 7

The structural and functional unit of all living organisms is the

Accepted Answer

A)  cell. 
B)  plasma membrane. 
C)  organelle. 
D)  ribosome. 
E)  organ. 
A)  cell. 
B)  plasma membrane. 
C)  organelle. 
D)  ribosome. 
E)  organ.

Question 8

The presence of a cellular clock, presence of "death genes" and damage to DNA or mitochondria are all theories of _____.

Accepted Answer

A)  cleavage 
B)  death 
C)  aging 
D)  differentiation 
A)  cleavage 
B)  death 
C)  aging 
D)  differentiation

Question 9

The movement of a substance from an area of high concentration to an area of less concentration is called

Accepted Answer

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

Question 10

If a 0.9% NaCl (saline) solution is isotonic to a cell, then a solution of 3.5% NaCl would be

Accepted Answer

A)  hypertonic to the cell. 
B)  isotonic to the cell. 
C)  hypotonic to the cell. 
D)  catatonic to the cell. 
E)  All of these choices are correct. 
A)  hypertonic to the cell. 
B)  isotonic to the cell. 
C)  hypotonic to the cell. 
D)  catatonic to the cell. 
E)  All of these choices are correct.

Question 11

Which of the following sequences is correct?

Accepted Answer

A)  translation$\rightarrow$ transcription $\rightarrow$ protein synthesis 
B)  transcription $\rightarrow$ protein synthesis $\rightarrow$ translation 
C)  translation $\rightarrow$protein synthesis $\rightarrow$ transcription 
D)  transcription $\rightarrow$ translation$\rightarrow$ protein synthesis 
E)  protein synthesis $\rightarrow$ translation $\rightarrow$ transcription 
A)  translation$\rightarrow$ transcription $\rightarrow$ protein synthesis 
B)  transcription $\rightarrow$ protein synthesis $\rightarrow$ translation 
C)  translation $\rightarrow$protein synthesis $\rightarrow$ transcription 
D)  transcription $\rightarrow$ translation$\rightarrow$ protein synthesis 
E)  protein synthesis $\rightarrow$ translation $\rightarrow$ transcription

Question 12

When a sperm cell comes into contact with an egg cell, there is a change in the electrical charge across the plasma membrane and various channel proteins close. These channels would be called

Accepted Answer

A)  chemical-gated channels. 
B)  ligand-gated channels. 
C)  open-gated channels. 
D)  nongated ion channels. 
E)  voltage-gated channels. 
A)  chemical-gated channels. 
B)  ligand-gated channels. 
C)  open-gated channels. 
D)  nongated ion channels. 
E)  voltage-gated channels.

Question 13

A cell that produces many proteins for secretion would have large numbers of

Accepted Answer

A)  mitochondria and cilia. 
B)  rough ER and Golgi apparatus. 
C)  ribosomes and centrioles. 
D)  Golgi apparatus and microvilli. 
E)  lysosomes and Golgi apparatus. 
A)  mitochondria and cilia. 
B)  rough ER and Golgi apparatus. 
C)  ribosomes and centrioles. 
D)  Golgi apparatus and microvilli. 
E)  lysosomes and Golgi apparatus.

Question 14

A runner produced hypotonic sweat while running a marathon in hot weather. After the race, he drank large volumes of water. As a result of the water intake, his body cells will

Accepted Answer

A)  shrink. 
B)  swell. 
C)  crenate. 
D)  shrivel. 
E)  not change. 
A)  shrink. 
B)  swell. 
C)  crenate. 
D)  shrivel. 
E)  not change.

Question 15

Which of the following cell organelles does not contain microtubules?

Accepted Answer

A)  cilia 
B)  flagella 
C)  spindle fibers 
D)  centrioles 
E)  All of these choices contain microtubules. 
A)  cilia 
B)  flagella 
C)  spindle fibers 
D)  centrioles 
E)  All of these choices contain microtubules.

Question 16

Communication between cells occurs when chemical messengers from one cell bind to _____ on another cell.

Accepted Answer

A)  marker molecules 
B)  second messengers 
C)  channel proteins 
D)  receptor proteins 
E)  integrins 
A)  marker molecules 
B)  second messengers 
C)  channel proteins 
D)  receptor proteins 
E)  integrins

Question 17

In which part of the cell cycle do chromosomes align along the equator?

Accepted Answer

A)  prophase 
B)  metaphase 
C)  anaphase 
D)  interphase 
E)  telophase 
A)  prophase 
B)  metaphase 
C)  anaphase 
D)  interphase 
E)  telophase

Question 18

Cyanide stops the production of ATP. Which of the following processes would be affected?

Accepted Answer

A)  active transport 
B)  filtration 
C)  facilitated diffusion 
D)  osmosis 
E)  simple diffusion 
A)  active transport 
B)  filtration 
C)  facilitated diffusion 
D)  osmosis 
E)  simple diffusion

Question 19

Skeletal muscle cells need large numbers of _______ to make the many proteins they contain.

Accepted Answer

A)  liposomes 
B)  lysosomes 
C)  centrosomes 
D)  peroxisomes 
E)  ribosomes 
A)  liposomes 
B)  lysosomes 
C)  centrosomes 
D)  peroxisomes 
E)  ribosomes

Question 20

Solution A contains 5 grams of sugar per liter while solution B contains 2 grams of sugar per liter. The solutions are separated by a selectively permeable membrane. If the solvent in both solutions is water, predict in which direction most of the water molecules will move.

Accepted Answer

A)  move by simple diffusion from solution A to solution B 
B)  move by osmosis from solution B to solution A 
C)  move by active transport from solution B to solution A 
D)  move by filtration from solution A to solution B 
E)  There will be no movement of water. 
A)  move by simple diffusion from solution A to solution B 
B)  move by osmosis from solution B to solution A 
C)  move by active transport from solution B to solution A 
D)  move by filtration from solution A to solution B 
E)  There will be no movement of water.

Exam 3: Cell Biology

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

The sacs containing hydrolytic enzymes are called

The _____________ contains the genetic information of the cell.

The organelle that protects cells from the damaging effects of medications and toxins is the

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

The nucleus of a cell functions to

The structural and functional unit of all living organisms is the

The presence of a cellular clock, presence of "death genes" and damage to DNA or mitochondria are all theories of _____.

The movement of a substance from an area of high concentration to an area of less concentration is called

If a 0.9% NaCl (saline) solution is isotonic to a cell, then a solution of 3.5% NaCl would be

Which of the following sequences is correct?

When a sperm cell comes into contact with an egg cell, there is a change in the electrical charge across the plasma membrane and various channel proteins close. These channels would be called

A cell that produces many proteins for secretion would have large numbers of

A runner produced hypotonic sweat while running a marathon in hot weather. After the race, he drank large volumes of water. As a result of the water intake, his body cells will

Which of the following cell organelles does not contain microtubules?

Communication between cells occurs when chemical messengers from one cell bind to _____ on another cell.

In which part of the cell cycle do chromosomes align along the equator?

Cyanide stops the production of ATP. Which of the following processes would be affected?

Skeletal muscle cells need large numbers of _______ to make the many proteins they contain.

Solution A contains 5 grams of sugar per liter while solution B contains 2 grams of sugar per liter. The solutions are separated by a selectively permeable membrane. If the solvent in both solutions is water, predict in which direction most of the water molecules will move.

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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