Question 1

Regulatory proteins are degraded outside of lysosomes by binding to ___ and then broken down by the proteasome.

Accepted Answer

A) ubiquitin 
B) chaperones 
C) lysosomes 
D) ribosomes 
A) ubiquitin 
B) chaperones 
C) lysosomes 
D) ribosomes A

Question 2

Phagocytosis is important for

Accepted Answer

A) body defense against foreign organic matter. 
B) promoting inflammation. 
C) removal of old and dying cells. 
D) All of these choices are correct. 
A) body defense against foreign organic matter. 
B) promoting inflammation. 
C) removal of old and dying cells. 
D) All of these choices are correct. D

Question 3

The duration of the cell cycle is decreased in response to increased amounts of

Accepted Answer

A) telomerase. 
B) cyclin D. 
C) DNA helicase. 
D) proteasome. 
A) telomerase. 
B) cyclin D. 
C) DNA helicase. 
D) proteasome. B

Question 4

Cellular senescence may be prevented by

Accepted Answer

A) increased DNA polymerase activity. 
B) increased telomerase activity. 
C) increased RNA polymerase activity. 
D) increased synthase activity. 
A) increased DNA polymerase activity. 
B) increased telomerase activity. 
C) increased RNA polymerase activity. 
D) increased synthase activity.

Question 5

Tay-Sachs disease is caused by a genetic defect which affects the activity of _______ enzymes.

Accepted Answer

A) mitochondrial 
B) lysosomal 
C) centrosomal 
D) ribosomal 
A) mitochondrial 
B) lysosomal 
C) centrosomal 
D) ribosomal

Question 6

The pericentriolar material is believed to be responsible for

Accepted Answer

A) cytoskeletal organization. 
B) centriole replication. 
C) kinetochore formation. 
D) centrosome formation. 
A) cytoskeletal organization. 
B) centriole replication. 
C) kinetochore formation. 
D) centrosome formation.

Question 7

What organelle functions to chemically modify cellular products and package them in vesicles?

Accepted Answer

A) Golgi apparatus 
B) mitochondrion 
C) lysosome 
D) ribosome 
A) Golgi apparatus 
B) mitochondrion 
C) lysosome 
D) ribosome

Question 8

The granular (rough)endoplasmic reticulum is characterized by a lack of ribosomes.

Accepted Answer

A) True 
 B)False

Question 9

The process of tissue death in which cells swell,rupture their membranes,and burst is called

Accepted Answer

A) apoptosis. 
B) phagocytosis. 
C) necrosis. 
D) transcytosis. 
A) apoptosis. 
B) phagocytosis. 
C) necrosis. 
D) transcytosis.

Question 10

What process involves the destruction of worn-out organelles by lysosomes?

Accepted Answer

A) exocytosis 
B) pinocytosis 
C) autophagy 
D) None of the choices are correct. 
A) exocytosis 
B) pinocytosis 
C) autophagy 
D) None of the choices are correct.

Question 11

Genes that have been silenced are passed to daughter cells during mitosis and meiosis in a process called

Accepted Answer

A) apoptosis. 
B) necrosis. 
C) hypertrophy. 
D) epigenetic inheritance. 
A) apoptosis. 
B) necrosis. 
C) hypertrophy. 
D) epigenetic inheritance.

Question 12

Which of the following is NOT true of siRNA?

Accepted Answer

A) It can silence up to 200 different mRNAs. 
B) It is short and double-stranded. 
C) It is processed by an enzyme called Dicer. 
D) It may be used to genetically suppress genes involved in disease. 
A) It can silence up to 200 different mRNAs. 
B) It is short and double-stranded. 
C) It is processed by an enzyme called Dicer. 
D) It may be used to genetically suppress genes involved in disease.

Question 13

Membrane enclosed organelles containing oxidative enzymes that form hydrogen peroxide are

Accepted Answer

A) lysosomes. 
B) centrosomes. 
C) peroxisomes. 
D) chromosomes. 
A) lysosomes. 
B) centrosomes. 
C) peroxisomes. 
D) chromosomes.

Question 14

Intake of a specific molecule from the extracellular compartment by a cell occurs through

Accepted Answer

A) phagocytosis. 
B) exocytosis. 
C) receptor-mediated endocytosis. 
D) apoptosis. 
A) phagocytosis. 
B) exocytosis. 
C) receptor-mediated endocytosis. 
D) apoptosis.

Question 15

Neutrophils and macrophages move through extracellular matrix by amoeboid movement.

Accepted Answer

A) True 
 B)False

Question 16

The term proteome refers to all of the genes in a particular individual.

Accepted Answer

A) True 
 B)False

Question 17

Oncogenes

Accepted Answer

A) prevent formation of cancer cells. 
B) block the ability of cyclins to stimulate cell division. 
C) stimulate apoptosis. 
D) often stimulate cyclin-dependent kinases that speed up the G1 phase. 
A) prevent formation of cancer cells. 
B) block the ability of cyclins to stimulate cell division. 
C) stimulate apoptosis. 
D) often stimulate cyclin-dependent kinases that speed up the G1 phase.

Question 18

The function of the _____________ is to produce ribosomal RNA.

Accepted Answer

A) chromatin 
B) centromere 
C) lysosomes 
D) nucleoli 
A) chromatin 
B) centromere 
C) lysosomes 
D) nucleoli

Question 19

Knockdown mice are mice strains in which a specific targeted gene has been inactivated.

Accepted Answer

A) True 
 B)False

Question 20

Growth due to increased cell size is called

Accepted Answer

A) hypertrophy. 
B) hyperplasia. 
C) atrophy. 
D) dystrophy. 
A) hypertrophy. 
B) hyperplasia. 
C) atrophy. 
D) dystrophy.

Regulatory proteins are degraded outside of lysosomes by binding to ___ and then broken down by the proteasome.

Phagocytosis is important for

The duration of the cell cycle is decreased in response to increased amounts of

Cellular senescence may be prevented by

Tay-Sachs disease is caused by a genetic defect which affects the activity of _______ enzymes.

The pericentriolar material is believed to be responsible for

What organelle functions to chemically modify cellular products and package them in vesicles?

The granular (rough)endoplasmic reticulum is characterized by a lack of ribosomes.

The process of tissue death in which cells swell,rupture their membranes,and burst is called

What process involves the destruction of worn-out organelles by lysosomes?

Genes that have been silenced are passed to daughter cells during mitosis and meiosis in a process called

Which of the following is NOT true of siRNA?

Membrane enclosed organelles containing oxidative enzymes that form hydrogen peroxide are

Intake of a specific molecule from the extracellular compartment by a cell occurs through

Neutrophils and macrophages move through extracellular matrix by amoeboid movement.

The term proteome refers to all of the genes in a particular individual.

Oncogenes

The function of the _____________ is to produce ribosomal RNA.

Knockdown mice are mice strains in which a specific targeted gene has been inactivated.

Growth due to increased cell size is called

The Study of Body Function

Chemical Composition of the Body

Enzymes and Energy

Cell Respiration and Metabolism

Interactions Between Cells and the Extracellular Environment

The Nervous System: Neurons and Synapses

The Central Nervous System

The Autonomic Nervous System

Sensory Physiology

Endocrine Glands: Secretion and Action of Hormones

Muscle: Mechanisms of Contraction and Neural Control

Blood,Heart and Circulation

Cardiac Output, Blood Flow, and Blood Pressure

The Immune System

Respiratory Physiology

Physiology of the Kidneys

The Digestive System

Regulation of Metabolism

Reproduction

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Exam 3: Cell Structure and Genetic Control

Regulatory proteins are degraded outside of lysosomes by binding to ___ and then broken down by the proteasome.

Phagocytosis is important for

The duration of the cell cycle is decreased in response to increased amounts of

Cellular senescence may be prevented by

Tay-Sachs disease is caused by a genetic defect which affects the activity of _______ enzymes.

The pericentriolar material is believed to be responsible for

What organelle functions to chemically modify cellular products and package them in vesicles?

The granular (rough)endoplasmic reticulum is characterized by a lack of ribosomes.

The process of tissue death in which cells swell,rupture their membranes,and burst is called

What process involves the destruction of worn-out organelles by lysosomes?

Genes that have been silenced are passed to daughter cells during mitosis and meiosis in a process called

Which of the following is NOT true of siRNA?

Membrane enclosed organelles containing oxidative enzymes that form hydrogen peroxide are

Intake of a specific molecule from the extracellular compartment by a cell occurs through

Neutrophils and macrophages move through extracellular matrix by amoeboid movement.

The term proteome refers to all of the genes in a particular individual.

Oncogenes

The function of the _____________ is to produce ribosomal RNA.

Knockdown mice are mice strains in which a specific targeted gene has been inactivated.

Growth due to increased cell size is called

The Study of Body Function

Chemical Composition of the Body

Enzymes and Energy

Cell Respiration and Metabolism

Interactions Between Cells and the Extracellular Environment

The Nervous System: Neurons and Synapses

The Central Nervous System

The Autonomic Nervous System

Sensory Physiology

Endocrine Glands: Secretion and Action of Hormones

Muscle: Mechanisms of Contraction and Neural Control

Blood,Heart and Circulation

Cardiac Output, Blood Flow, and Blood Pressure

The Immune System

Respiratory Physiology

Physiology of the Kidneys

The Digestive System

Regulation of Metabolism

Reproduction

Filters