Question 1

What is the role of cytokines in cell reproduction?

Accepted Answer

A)  They provide growth factor for tissue growth and development. 
B)  They block progress of cell reproduction through the cell cycle. 
C)  They restrain cell growth and development. 
D)  They provide nutrients for cell growth and development. 
A)  They provide growth factor for tissue growth and development. 
B)  They block progress of cell reproduction through the cell cycle. 
C)  They restrain cell growth and development. 
D)  They provide nutrients for cell growth and development.

Question 2

Understanding the various steps of proteolytic cascades such as caspase-mediated apoptosis and complement cascade may be useful in designing drug therapy for which human diseases?

Accepted Answer

A)  Cardiac and vascular disorders 
B)  Autoimmune and malignant disorders 
C)  Gastrointestinal and renal disorders 
D)  Endocrine disorders 
A)  Cardiac and vascular disorders 
B)  Autoimmune and malignant disorders 
C)  Gastrointestinal and renal disorders 
D)  Endocrine disorders

Question 3

The chief function of ribosomes is to provide sites for lipid synthesis.

Accepted Answer

A) True 
 B)False

Question 4

The movement of fluid across the arterial end of capillary membranes into the interstitial fluid surrounding the capillary is an example of which process of fluid movement?

Accepted Answer

A)  Hydrostatic pressure 
B)  Osmosis 
C)  Diffusion 
D)  Active transport 
A)  Hydrostatic pressure 
B)  Osmosis 
C)  Diffusion 
D)  Active transport

Question 5

What are the major chemical components of the cell membranes?

Accepted Answer

A)  Lipids and proteins 
B)  Sodium and potassium ions 
C)  Carbohydrates and water 
D)  DNA and RNA 
A)  Lipids and proteins 
B)  Sodium and potassium ions 
C)  Carbohydrates and water 
D)  DNA and RNA

Question 6

What does the fluid mosaic model explains?

Accepted Answer

A)  How a cell membrane functions 
B)  Why our bodies appear to be solid 
C)  How tissue is differentiated 
D)  How fluid moves between the intracellular and extracellular compartments 
A)  How a cell membrane functions 
B)  Why our bodies appear to be solid 
C)  How tissue is differentiated 
D)  How fluid moves between the intracellular and extracellular compartments

Question 7

The primary functions of the cell nucleus are cell division and control of genetic information.

Accepted Answer

A) True 
 B)False

Question 8

The cellular uptake of cholesterol depends on:

Accepted Answer

A)  receptor-mediated exocytosis. 
B)  antiport system. 
C)  receptor-mediated endocytosis. 
D)  passive transport. 
A)  receptor-mediated exocytosis. 
B)  antiport system. 
C)  receptor-mediated endocytosis. 
D)  passive transport.

Question 9

Neurotransmitters affect the postsynaptic membrane by binding to:

Accepted Answer

A)  lipids. 
B)  ribosomes. 
C)  amphipathic lipids. 
D)  receptors. 
A)  lipids. 
B)  ribosomes. 
C)  amphipathic lipids. 
D)  receptors.

Question 10

Which cell component is capable of cellular autodigestion when it is released during cell injury?

Accepted Answer

A)  Ribosome 
B)  Golgi complex 
C)  Smooth endoplasmic reticulum 
D)  Lysosomes 
A)  Ribosome 
B)  Golgi complex 
C)  Smooth endoplasmic reticulum 
D)  Lysosomes

Question 11

What causes the rapid change in the resting membrane potential that initiates an action potential?

Accepted Answer

A)  Potassium gates open and potassium rushes into the cell changing the membrane potential from negative to positive. 
B)  Sodium gates open and sodium rushes into the cell changing the membrane potential from negative to positive. 
C)  Sodium gates close allowing potassium into the cell to changing the membrane potential from positive to negative. 
D)  Potassium gates close allowing sodium into the cell to change the membrane potential from positive to negative. 
A)  Potassium gates open and potassium rushes into the cell changing the membrane potential from negative to positive. 
B)  Sodium gates open and sodium rushes into the cell changing the membrane potential from negative to positive. 
C)  Sodium gates close allowing potassium into the cell to changing the membrane potential from positive to negative. 
D)  Potassium gates close allowing sodium into the cell to change the membrane potential from positive to negative.

Question 12

MATCHING
Match the structure with its function.(Answers A through E may be used more than once. )
-Fuses with the plasma membrane to release contents from the cell

Accepted Answer

A) Endoplasmic reticulum 
B) Ribosome 
C) Golgi complex 
D) Secretory vesicle 
E) Lysosomes 
A) Endoplasmic reticulum 
B) Ribosome 
C) Golgi complex 
D) Secretory vesicle 
E) Lysosomes

Question 13

Which mode of chemical signaling uses local chemical mediators that are quickly taken up,destroyed or immobilized?

Accepted Answer

A)  Paracrine signaling 
B)  Autocrine signaling 
C)  Neurotransmitter signaling 
D)  Hormone signaling 
A)  Paracrine signaling 
B)  Autocrine signaling 
C)  Neurotransmitter signaling 
D)  Hormone signaling

Question 14

Cellular reproduction is a process that:

Accepted Answer

A)  often takes months or years to complete. 
B)  typically has a short interphase. 
C)  results in two diploid cells called daughter cells. 
D)  involves the interaction of male and female cells. 
A)  often takes months or years to complete. 
B)  typically has a short interphase. 
C)  results in two diploid cells called daughter cells. 
D)  involves the interaction of male and female cells.

Question 15

How do cells receive communication from the extracellular fluid surrounding them?

Accepted Answer

A)  Protein channel (gap junction) 
B)  Plasma membrane-bound signaling molecules (involving receptors) 
C)  Hormone secretion such as neurotransmitters 
D)  Chemical messengers such as ligands 
A)  Protein channel (gap junction) 
B)  Plasma membrane-bound signaling molecules (involving receptors) 
C)  Hormone secretion such as neurotransmitters 
D)  Chemical messengers such as ligands

Question 16

Using the fluid mosaic model,how is the cell capable of actively protecting itself against injurious agents?

Accepted Answer

A)  By closing down the membrane transport channels to hormones and chemicals. 
B)  By altering the number and patterns of receptors to bacteria,antibodies,and chemicals. 
C)  By increasing the number and sensitivity of lysosomes to destroy bacteria. 
D)  By shifting the bilayer from hydrophobic to hydrophilic in response to antibodies. 
A)  By closing down the membrane transport channels to hormones and chemicals. 
B)  By altering the number and patterns of receptors to bacteria,antibodies,and chemicals. 
C)  By increasing the number and sensitivity of lysosomes to destroy bacteria. 
D)  By shifting the bilayer from hydrophobic to hydrophilic in response to antibodies.

Question 17

Which form of cell communication is used to communicate within the cell itself and with other cells in direct physical contact?

Accepted Answer

A)  Protein channel (gap junction) 
B)  Plasma membrane-bound signaling molecules (involving receptors) 
C)  Hormone secretion such as neurotransmitters 
D)  Extracellular chemical messengers such as ligands 
A)  Protein channel (gap junction) 
B)  Plasma membrane-bound signaling molecules (involving receptors) 
C)  Hormone secretion such as neurotransmitters 
D)  Extracellular chemical messengers such as ligands

Question 18

Match the structure with its function.(Answers A through D may be used more than once. )
-Facilitated diffusion

Accepted Answer

A) Passive-mediated transport 
B) Active-mediated transport 
C) Osmosis 
D) Diffusion 
A) Passive-mediated transport 
B) Active-mediated transport 
C) Osmosis 
D) Diffusion

Question 19

What is the mechanism by which the energy produced from carbohydrates,proteins and lipids is transferred to adenosine triphosphate (ATP)?

Accepted Answer

A)  Anaerobic glycolysis 
B)  Oxidative cellular metabolism 
C)  Oxidative phosphorylation 
D)  Tricarboxylic acid phosphorylation 
A)  Anaerobic glycolysis 
B)  Oxidative cellular metabolism 
C)  Oxidative phosphorylation 
D)  Tricarboxylic acid phosphorylation

Question 20

Match the structure with its function.(Answers A through D may be used more than once. )
-Protein carrier

Accepted Answer

A) Passive-mediated transport 
B) Active-mediated transport 
C) Osmosis 
D) Diffusion 
A) Passive-mediated transport 
B) Active-mediated transport 
C) Osmosis 
D) Diffusion

Exam 1: Cellular Biology

What is the role of cytokines in cell reproduction?

Understanding the various steps of proteolytic cascades such as caspase-mediated apoptosis and complement cascade may be useful in designing drug therapy for which human diseases?

The chief function of ribosomes is to provide sites for lipid synthesis.

The movement of fluid across the arterial end of capillary membranes into the interstitial fluid surrounding the capillary is an example of which process of fluid movement?

What are the major chemical components of the cell membranes?

What does the fluid mosaic model explains?

The primary functions of the cell nucleus are cell division and control of genetic information.

The cellular uptake of cholesterol depends on:

Neurotransmitters affect the postsynaptic membrane by binding to:

Which cell component is capable of cellular autodigestion when it is released during cell injury?

What causes the rapid change in the resting membrane potential that initiates an action potential?

MATCHING Match the structure with its function.(Answers A through E may be used more than once. ) -Fuses with the plasma membrane to release contents from the cell

Which mode of chemical signaling uses local chemical mediators that are quickly taken up,destroyed or immobilized?

Cellular reproduction is a process that:

How do cells receive communication from the extracellular fluid surrounding them?

Using the fluid mosaic model,how is the cell capable of actively protecting itself against injurious agents?

Which form of cell communication is used to communicate within the cell itself and with other cells in direct physical contact?

Match the structure with its function.(Answers A through D may be used more than once. ) -Facilitated diffusion

What is the mechanism by which the energy produced from carbohydrates,proteins and lipids is transferred to adenosine triphosphate (ATP)?

Match the structure with its function.(Answers A through D may be used more than once. ) -Protein carrier

Altered Cellular and Tissue Biology

The Cellular Environment

Genes and Genetic Diseases

Genes, Environment-Lifestyle, and Common Diseases

Innate Immunity Including Inflammation

Adaptive Immunity

Alterations in Immunity and Inflammation Including Hypersensitivies

Infection Including Hivaids

Stress and Disease

Biology of Cancer

Tumor Invasion and Metastasis

Cancer in Children

Structure and Function of the Neurologic System

Pain, Temperature Regulation, Sleep, and Sensory Function

Concepts of Neurologic Dysfunction

Disorders of Neurologic Function

Neurobiology of Schizophrenia, Mood Disorders, and Anxiety Disorders

Alterations of Neurologic Function in Children

Mechanisms of Hormonal Regulation

Alterations of Hormonal Regulation

Structure and Function of the Reproductive Systems

Alterations of the Reproductive Systems

Sexually Transmitted Infections

Structure and Function of the Hematologic System

Alterations of Erythrocyte Function

Alterations in Hematologic Function in Children

Structure and Function of the Cardiovascular and Lymphatic Systems

Alterations of Cardiovascular Function

Alterations of Cardiovascular Function in Children

Structure and Function of the Pulmonary System

Alterations of Pulmonary Function

Structure and Function of the Renal and Urologic Systems

Alterations of Renal and Urinary Tract Function

Alterations of Renal and Urinary Tract Function in Children

Structure and Function of the Digestive System

Alterations of Digestive Function

Alterations of Digestive Function in Children

Structure and Function of the Musculoskeletal System

Alterations of Musculoskeletal Function

Alterations of Musculoskeletal Function in Children

Structure, Function, and Disorders of the Integument

Alterations of the Integument in Children

Shock, Multiple Organ Dysfunction Syndrome, and Burns in Adults

Shock, Multiple Organ Dysfunction Syndrome, and Burns in Children

Alterations of Leukocyte, Lymphoid, and Hemostatic Function

Alterations of Pulmonary Function in Children

Filters