Question 1

At the base of each cilium is a structure called the

Accepted Answer

A)  kinetochore. 
B)  basal body. 
C)  dynein arm. 
D)  centrosome. 
E)  None of these choices is correct. 
A)  kinetochore. 
B)  basal body. 
C)  dynein arm. 
D)  centrosome. 
E)  None of these choices is correct.

Question 2

Cells of the small intestine and kidney tubules have extensions that increase their surface area called

Accepted Answer

A)  cilia. 
B)  hairs. 
C)  ruguae. 
D)  microvilli. 
E)  flagella. 
A)  cilia. 
B)  hairs. 
C)  ruguae. 
D)  microvilli. 
E)  flagella.

Question 3

Communication between cells is essential to coordinate the activity of the trillions of cells that make up the human body. Which of the following is (are) directly involved in carrying out communication between cells?

Accepted Answer

A)  lipid bilayer of the plasma membrane 
B)  receptor proteins of the plasma membrane 
C)  chemical signal molecules released by cells 
D)  mitochondria 
E)  both receptor proteins of the plasma membrane and chemical signal molecules released by cells 
A)  lipid bilayer of the plasma membrane 
B)  receptor proteins of the plasma membrane 
C)  chemical signal molecules released by cells 
D)  mitochondria 
E)  both receptor proteins of the plasma membrane and chemical signal molecules released by cells

Question 4

What organelles are small vacuoles containing oxidative enzymes?

Accepted Answer

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

Question 5

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

Accepted Answer

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

Question 6

What is a large, active phagocytic cell?

Accepted Answer

A)  columnar cells of upper respiratory tract 
B)  spermatozoa 
C)  columnar cells of small intestines 
D)  red blood cells 
E)  macrophage (large, mobile white blood cell) 
A)  columnar cells of upper respiratory tract 
B)  spermatozoa 
C)  columnar cells of small intestines 
D)  red blood cells 
E)  macrophage (large, mobile white blood cell)

Question 7

Absence of a cytoskeleton might affect

Accepted Answer

A)  cell shape. 
B)  the number of channel proteins in the cell membrane. 
C)  the ability of the cell to generate energy. 
D)  vesicle formation. 
E)  membrane transport. 
A)  cell shape. 
B)  the number of channel proteins in the cell membrane. 
C)  the ability of the cell to generate energy. 
D)  vesicle formation. 
E)  membrane transport.

Question 8

A cell's ability to replenish ATP is reduced by a metabolic poison. Which organelle is being affected?

Accepted Answer

A)  nucleus 
B)  centriole 
C)  microtubule 
D)  mitochondrion 
E)  ribosomes 
A)  nucleus 
B)  centriole 
C)  microtubule 
D)  mitochondrion 
E)  ribosomes

Question 9

What type of cells are covered with microvilli for increased absorption?

Accepted Answer

A)  columnar cells of upper respiratory tract 
B)  spermatozoa 
C)  columnar cells of small intestines 
D)  red blood cells 
E)  macrophage (large, mobile white blood cell) 
A)  columnar cells of upper respiratory tract 
B)  spermatozoa 
C)  columnar cells of small intestines 
D)  red blood cells 
E)  macrophage (large, mobile white blood cell)

Question 10

The cytoplasm is made up of

Accepted Answer

A)  cytosol. 
B)  cytogel. 
C)  organelles. 
D)  Both cytosol and organelles. 
E)  Both cytogel and organelles. 
A)  cytosol. 
B)  cytogel. 
C)  organelles. 
D)  Both cytosol and organelles. 
E)  Both cytogel and organelles.

Question 11

Cells that lack ribosomes cannot

Accepted Answer

A)  produce energy. 
B)  eliminate wastes. 
C)  engage in protein synthesis. 
D)  package cellular products. 
E)  ingest and phagocytize bacteria. 
A)  produce energy. 
B)  eliminate wastes. 
C)  engage in protein synthesis. 
D)  package cellular products. 
E)  ingest and phagocytize bacteria.

Question 12

The intracellular digestive organelle of a cell is the

Accepted Answer

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

Question 13

The plasma membrane

Accepted Answer

A)  separates the nucleus from the rest of the cell. 
B)  is a rigid protein membrane. 
C)  is not permeable. 
D)  has a single layer of phospholipids. 
E)  regulates movement of materials into and out of the cell. 
A)  separates the nucleus from the rest of the cell. 
B)  is a rigid protein membrane. 
C)  is not permeable. 
D)  has a single layer of phospholipids. 
E)  regulates movement of materials into and out of the cell.

Question 14

In prophase

Accepted Answer

A)  the chromosomes condense, shorten, and thicken. 
B)  the spindle fibers disappear. 
C)  the chromosomes replicate. 
D)  cytokinesis occurs. 
E)  DNA is synthesized. 
A)  the chromosomes condense, shorten, and thicken. 
B)  the spindle fibers disappear. 
C)  the chromosomes replicate. 
D)  cytokinesis occurs. 
E)  DNA is synthesized.

Question 15

Pinocytosis

Accepted Answer

A)  is a form of exocytosis. 
B)  involves ingestion of liquids rather than particles. 
C)  does not require ATP. 
D)  forms vesicles only when large amounts of material are being transported. 
E)  does not require the formation of vesicles. 
A)  is a form of exocytosis. 
B)  involves ingestion of liquids rather than particles. 
C)  does not require ATP. 
D)  forms vesicles only when large amounts of material are being transported. 
E)  does not require the formation of vesicles.

Question 16

Transcription

Accepted Answer

A)  requires three types of RNA. 
B)  synthesizes RNA from DNA. 
C)  occurs at the ribosomes. 
D)  copies information from mRNA to tRNA. 
E)  synthesizes DNA from RNA. 
A)  requires three types of RNA. 
B)  synthesizes RNA from DNA. 
C)  occurs at the ribosomes. 
D)  copies information from mRNA to tRNA. 
E)  synthesizes DNA from RNA.

Question 17

Which of the following organelles function in the destruction of nonfunctional organelles?

Accepted Answer

A)  endoplasmic reticulum 
B)  centrioles 
C)  basal bodies 
D)  lysosomes 
E)  mitochondria 
A)  endoplasmic reticulum 
B)  centrioles 
C)  basal bodies 
D)  lysosomes 
E)  mitochondria

Question 18

What type of membrane proteins form a passageway through the plasma membrane?

Accepted Answer

A)  marker molecules 
B)  channel protein 
C)  receptor proteins 
D)  enzymes 
E)  carrier proteins 
A)  marker molecules 
B)  channel protein 
C)  receptor proteins 
D)  enzymes 
E)  carrier proteins

Question 19

The structural and functional unit of all living organisms is the

Accepted Answer

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

Question 20

Which of the following is NOT associated with interphase?

Accepted Answer

A)  The centrioles duplicate. 
B)  The cell grows. 
C)  The cell does what it is designed to do. 
D)  The cell does nothing but rest. 
E)  The DNA replicates. 
A)  The centrioles duplicate. 
B)  The cell grows. 
C)  The cell does what it is designed to do. 
D)  The cell does nothing but rest. 
E)  The DNA replicates.

Exam 3: Cell Biology

At the base of each cilium is a structure called the

Cells of the small intestine and kidney tubules have extensions that increase their surface area called

Communication between cells is essential to coordinate the activity of the trillions of cells that make up the human body. Which of the following is (are) directly involved in carrying out communication between cells?

What organelles are small vacuoles containing oxidative enzymes?

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

What is a large, active phagocytic cell?

Absence of a cytoskeleton might affect

A cell's ability to replenish ATP is reduced by a metabolic poison. Which organelle is being affected?

What type of cells are covered with microvilli for increased absorption?

The cytoplasm is made up of

Cells that lack ribosomes cannot

The intracellular digestive organelle of a cell is the

The plasma membrane

In prophase

Pinocytosis

Transcription

Which of the following organelles function in the destruction of nonfunctional organelles?

What type of membrane proteins form a passageway through the plasma membrane?

The structural and functional unit of all living organisms is the

Which of the following is NOT associated with interphase?

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, Electrolytes, and Acidbase Balance

Reproductive System

Development, Growth, Aging, and Genetics

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