Question 1

Cytokinesis is completed at the end of this phase.

Accepted Answer

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

Question 2

All of the following processes can move substances out of a cell EXCEPT

Accepted Answer

A) diffusion. 
B) phagocytosis. 
C) active transport. 
D) osmosis. 
E) exocytosis. 
A) diffusion. 
B) phagocytosis. 
C) active transport. 
D) osmosis. 
E) exocytosis.

Question 3

-Red blood cells (RBCs)have been placed in three different solutions: hypotonic,hypertonic,isotonic.What is the condition of the RBC in solution "B"?

Accepted Answer

A) crenated 
B) hypertonic solution 
C) isotonic solution 
D) hemolyzed 
E) hypotonic solution 
A) crenated 
B) hypertonic solution 
C) isotonic solution 
D) hemolyzed 
E) hypotonic solution

Question 4

-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 "A"?

Accepted Answer

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

Question 5

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 6

Internal structures of a cell that carry out specialized metabolic tasks are called _____.

Accepted Answer

A)  cytoskeletal elements 
B)  enzymes 
C)  ribosomes 
D)  organelles 
A)  cytoskeletal elements 
B)  enzymes 
C)  ribosomes 
D)  organelles

Question 7

Which of the following is an organelle of locomotion?

Accepted Answer

A) nucleolus 
B) endoplasmic reticulum 
C) peroxisomes 
D) Golgi apparatus 
E) flagellum 
A) nucleolus 
B) endoplasmic reticulum 
C) peroxisomes 
D) Golgi apparatus 
E) flagellum

Question 8

Which type of transport proteins use cell energy to move molecules across the plasma membrane?

Accepted Answer

A) cadherins 
B) leak-ion channels 
C) ATP-powered pumps 
D) ligand-gated ion channels 
A) cadherins 
B) leak-ion channels 
C) ATP-powered pumps 
D) ligand-gated ion channels

Question 9

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 10

Which of the following could be used to study general features of cells?

Accepted Answer

A) binoculars 
B) scanning electron microscope 
C) transmission electron microscope 
D) light microscope 
E) a magnifying glass 
A) binoculars 
B) scanning electron microscope 
C) transmission electron microscope 
D) light microscope 
E) a magnifying glass

Question 11

Glycolipids would contain both lipids and

Accepted Answer

A) amino acids. 
B) electrolytes. 
C) proteins. 
D) cholesterol. 
E) carbohydrates. 
A) amino acids. 
B) electrolytes. 
C) proteins. 
D) cholesterol. 
E) carbohydrates.

Question 12

Cilia and flagella are distinguished from each other on the basis of

Accepted Answer

A) width and numbers. 
B) length and numbers. 
C) depth and numbers. 
D) length and width. 
E) None of these choices is correct. 
A) width and numbers. 
B) length and numbers. 
C) depth and numbers. 
D) length and width. 
E) None of these choices is correct.

Question 13

The intracellular digestive organelle of a cell is the

Accepted Answer

A) lipochrome. 
B) smooth endoplasmic reticulum. 
C) lysosome. 
D) rough endoplasmic reticulum. 
E) microtubule. 
A) lipochrome. 
B) smooth endoplasmic reticulum. 
C) lysosome. 
D) rough endoplasmic reticulum. 
E) microtubule.

Question 14

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.

Question 15

-Answer these questions about chromosome structure.What does "B" represent?

Accepted Answer

A) chromatid 
B) chromatin 
C) proteins 
D) chromosome 
E) centromere 
A) chromatid 
B) chromatin 
C) proteins 
D) chromosome 
E) centromere

Question 16

Which molecule determines the fluidity of the plasma membrane?

Accepted Answer

A)  Protein 
B)  Cholesterol 
C)  Phospholipid 
A)  Protein 
B)  Cholesterol 
C)  Phospholipid

Question 17

What molecule(s)cause(s)a portion of a DNA molecule to unwind for transcription?

Accepted Answer

A) poly-A tail 
B) transcription factors 
C) spliceosomes 
D) RNA ploymerase 
E) 7-methylguanosine cap 
A) poly-A tail 
B) transcription factors 
C) spliceosomes 
D) RNA ploymerase 
E) 7-methylguanosine cap

Question 18

In one form of endocytosis a molecule binds to a specific protein on the cell surface and triggers vesicle formation and endocytosis.What type of transport is this?

Accepted Answer

A)  Pinocytosis 
B)  Facilitated diffusion 
C)  Receptor-mediated endocytosis 
D)  Active exocytosis 
A)  Pinocytosis 
B)  Facilitated diffusion 
C)  Receptor-mediated endocytosis 
D)  Active exocytosis

Question 19

What type of cell has abundant ribosomes?

Accepted Answer

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

Question 20

A group of cells was treated with a proteolytic (protein-digesting)enzyme.Which of the following processes would be least affected by this treatment?

Accepted Answer

A) use of carrier molecules in facilitated diffusion 
B) sodium-potassium exchange pump 
C) secondary active transport 
D) diffusion of lipid-soluble molecules through the plasma membrane 
E) diffusion of sodium through sodium membrane channels 
A) use of carrier molecules in facilitated diffusion 
B) sodium-potassium exchange pump 
C) secondary active transport 
D) diffusion of lipid-soluble molecules through the plasma membrane 
E) diffusion of sodium through sodium membrane channels

Exam 3: Cell Biology

Cytokinesis is completed at the end of this phase.

All of the following processes can move substances out of a cell EXCEPT

-Red blood cells (RBCs)have been placed in three different solutions: hypotonic,hypertonic,isotonic.What is the condition of the RBC in solution "B"?

-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 "A"?

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

Internal structures of a cell that carry out specialized metabolic tasks are called _____.

Which of the following is an organelle of locomotion?

Which type of transport proteins use cell energy to move molecules across the plasma membrane?

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

Which of the following could be used to study general features of cells?

Glycolipids would contain both lipids and

Cilia and flagella are distinguished from each other on the basis of

The intracellular digestive organelle of a cell is the

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.

-Answer these questions about chromosome structure.What does "B" represent?

Which molecule determines the fluidity of the plasma membrane?

What molecule(s)cause(s)a portion of a DNA molecule to unwind for transcription?

In one form of endocytosis a molecule binds to a specific protein on the cell surface and triggers vesicle formation and endocytosis.What type of transport is this?

What type of cell has abundant ribosomes?

A group of cells was treated with a proteolytic (protein-digesting)enzyme.Which of the following processes would be least affected by this treatment?

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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