Question 1

What organic compound facilitates transportation across cell membranes by acting as receptors,transport channels for electrolytes,and enzymes to drive active pumps?

Accepted Answer

A)  Lipids 
B)  Proteases 
C)  Proteins 
D)  Carbohydrates 
A)  Lipids 
B)  Proteases 
C)  Proteins 
D)  Carbohydrates

Question 2

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

Accepted Answer

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

Question 3

Which statement is true about phagocytosis?

Accepted Answer

A)  Phagocytosis is an example of exocytosis. 
B)  Phagocytosis is dependent on small vesicles. 
C)  Phagocytosis involves the ingestion of bacteria. 
D)  Phagocytosis focuses on solute molecules. 
A)  Phagocytosis is an example of exocytosis. 
B)  Phagocytosis is dependent on small vesicles. 
C)  Phagocytosis involves the ingestion of bacteria. 
D)  Phagocytosis focuses on solute molecules.

Question 4

What is the process of cellular reproduction?

Accepted Answer

A)  The process often takes months or years to complete. 
B)  Cellular reproduction typically has a short interphase. 
C)  Two diploid cells, called daughter cells, have been formed. 
D)  The process involves the interaction of male and female cells. 
A)  The process often takes months or years to complete. 
B)  Cellular reproduction typically has a short interphase. 
C)  Two diploid cells, called daughter cells, have been formed. 
D)  The process involves the interaction of male and female cells.

Question 5

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 6

Match the structure with its function.Answers may be used more than once.
-Movement of water

Accepted Answer

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

Question 7

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 8

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 9

A muscle cell possesses which specialized function?

Accepted Answer

A)  Movement 
B)  Conductivity 
C)  Secretion 
D)  Respiration 
A)  Movement 
B)  Conductivity 
C)  Secretion 
D)  Respiration

Question 10

Which statement is true about eukaryotic cells?

Accepted Answer

A)  They lack distinct nucleus. 
B)  They contain compartments called organelles. 
C)  They lack an encasing nuclear membrane. 
D)  They are smaller than the typical prokaryote cell. 
A)  They lack distinct nucleus. 
B)  They contain compartments called organelles. 
C)  They lack an encasing nuclear membrane. 
D)  They are smaller than the typical prokaryote cell.

Question 11

Potassium and sodium are transported across plasma membranes by:

Accepted Answer

A)  Passive electrolyte channels 
B)  Coupled channels 
C)  Adenosine triphosphatase (ATPase) enzyme 
D)  Diffusion 
A)  Passive electrolyte channels 
B)  Coupled channels 
C)  Adenosine triphosphatase (ATPase) enzyme 
D)  Diffusion

Question 12

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 13

Which component of the cell produces hydrogen peroxide (H₂O₂)by using oxygen to remove hydrogen atoms from specific substrates in an oxidative reaction?

Accepted Answer

A)  Lysosomes 
B)  Peroxisomes 
C)  Ribosomes 
D)  Oxyhydrosomes 
A)  Lysosomes 
B)  Peroxisomes 
C)  Ribosomes 
D)  Oxyhydrosomes

Question 14

Which method of transport uses transmembrane proteins with receptors with a high degree of specificity for the substance being transported?

Accepted Answer

A)  Active 
B)  Mediated 
C)  Transmembranous 
D)  Passive 
A)  Active 
B)  Mediated 
C)  Transmembranous 
D)  Passive

Question 15

The action of platelet-derived growth factor is to stimulate the production of which cells?

Accepted Answer

A)  Platelets 
B)  Epidermal cells 
C)  Connective tissue cells 
D)  Fibroblast cells 
A)  Platelets 
B)  Epidermal cells 
C)  Connective tissue cells 
D)  Fibroblast cells

Question 16

When a second message is necessary for extracellular communication to be activated,it is provided by which one?

Accepted Answer

A)  Guanosine triphosphate (GTP) 
B)  Adenosine monophosphate (AMP) 
C)  Adenosine triphosphate (ATP) 
D)  Guanosine diphosphate (GDP) 
A)  Guanosine triphosphate (GTP) 
B)  Adenosine monophosphate (AMP) 
C)  Adenosine triphosphate (ATP) 
D)  Guanosine diphosphate (GDP)

Question 17

The cellular uptake of the nutrient cholesterol depends on which process?

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 18

Match the structure with its function.Answers may be used more than once.
-Packages and transports proteins.

Accepted Answer

A) Endoplasmic reticulum 
B) Ribosome 
C) Secretory vesicle 
D) Lysosomes 
A) Endoplasmic reticulum 
B) Ribosome 
C) Secretory vesicle 
D) Lysosomes

Question 19

What is the primary function of proteins? (Select all that apply.)

Accepted Answer

A)  Proteins are binding units. 
B)  Proteins are transport channels. 
C)  Proteins are ribonucleoproteins. 
D)  Proteins provide cell surface markers. 
E)  Proteins are chemical reaction catalysts. 
A)  Proteins are binding units. 
B)  Proteins are transport channels. 
C)  Proteins are ribonucleoproteins. 
D)  Proteins provide cell surface markers. 
E)  Proteins are chemical reaction catalysts.

Question 20

Most of a cell's genetic information,including RNA and DNA,is contained in the:

Accepted Answer

A)  Mitochondria 
B)  Ribosome 
C)  Nucleolus 
D)  Lysosome 
A)  Mitochondria 
B)  Ribosome 
C)  Nucleolus 
D)  Lysosome

Exam 1: Cellular Biology

What organic compound facilitates transportation across cell membranes by acting as receptors,transport channels for electrolytes,and enzymes to drive active pumps?

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

Which statement is true about phagocytosis?

What is the process of cellular reproduction?

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 may be used more than once. -Movement of water

Neurotransmitters affect the postsynaptic membrane by binding to:

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

A muscle cell possesses which specialized function?

Which statement is true about eukaryotic cells?

Potassium and sodium are transported across plasma membranes by:

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

Which component of the cell produces hydrogen peroxide (H₂O₂)by using oxygen to remove hydrogen atoms from specific substrates in an oxidative reaction?

Which method of transport uses transmembrane proteins with receptors with a high degree of specificity for the substance being transported?

The action of platelet-derived growth factor is to stimulate the production of which cells?

When a second message is necessary for extracellular communication to be activated,it is provided by which one?

The cellular uptake of the nutrient cholesterol depends on which process?

Match the structure with its function.Answers may be used more than once. -Packages and transports proteins.

What is the primary function of proteins? (Select all that apply.)

Most of a cell's genetic information,including RNA and DNA,is contained in the:

Altered Cellular and Tissue Biology

The Cellular Environment: Fluids and Electrolytes, Acids and Bases

Genes and Genetic Diseases

Genes, Environment-Lifestyle, and Common Diseases

Epigenetics and Disease

Innate Immunity: Inflammation

Adaptive Immunity

Alterations in Immunity and Inflammation

Infection

Stress and Disease

Cancer Biology

Cancer Epidemiology

Cancer in Children

Structure and Function of the Neurologic System

Pain, Temperature Regulation, Sleep, and Sensory Function

Alterations in Cognitive Systems,Cerebral Hemodynamics,and Motor Function

Disorders of the Central and Peripheral Nervous Systems and the Neuromuscular Junction

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 Female Reproductive System

Alterations of the Male Reproductive System

Sexually Transmitted Infections

Structure and Function of the Hematologic System

Alterations of Erythrocyte Function

Alterations of Leukocyte, Lymphoid, and Hemostatic Function

Alterations of 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

Alterations of Pulmonary Function in Children

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

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