Question 1

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

Accepted Answer

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

Question 2

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

Accepted Answer

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

Question 3

Certain cells in the liver ingest bacteria and debris from damaged cells by a process called

Accepted Answer

A)  pinocytosis. 
B)  phagocytosis. 
C)  biocytosis. 
D)  calmly regulated diffusion. 
E)  exocytosis. 
A)  pinocytosis. 
B)  phagocytosis. 
C)  biocytosis. 
D)  calmly regulated diffusion. 
E)  exocytosis. B

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 "E"?

Accepted Answer

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

Question 5

A person suffered burns over a large part of his body. Evaporation of fluid from the surface of burned areas occurs. As a result of the evaporation process, cells will tend to

Accepted Answer

A)  shrink. 
B)  swell. 
C)  rupture. 
D)  first swell and then resume their original shape. 
E)  remain unchanged. 
A)  shrink. 
B)  swell. 
C)  rupture. 
D)  first swell and then resume their original shape. 
E)  remain unchanged.

Question 6

-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 "D"?

Accepted Answer

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

Question 7

Chromosomes begin migrating towards poles of the cell during

Accepted Answer

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

Question 8

A protein that is converted to an active enzyme is a

Accepted Answer

A)  pre-mRNA. 
B)  proenzyme. 
C)  gene. 
D)  ribosomal RNA (rRN
A) . 
E)  codon. 
A)  pre-mRNA. 
B)  proenzyme. 
C)  gene. 
D)  ribosomal RNA (rRN
A) . 
E)  codon.

Question 9

Vitamin A, a fat-soluble vitamin, would move across the plasma membrane into the cell

Accepted Answer

A)  in vesicles. 
B)  through vitamin membrane channels. 
C)  by dissolving in the lipid bilayer. 
D)  by transport with carrier molecules. 
E)  by active transport. 
A)  in vesicles. 
B)  through vitamin membrane channels. 
C)  by dissolving in the lipid bilayer. 
D)  by transport with carrier molecules. 
E)  by active transport.

Question 10

Which of the following molecules contains the anticodon?

Accepted Answer

A)  mRNA 
B)  rRNA 
C)  tRNA 
D)  DNA 
E)  None of these choices are correct. 
A)  mRNA 
B)  rRNA 
C)  tRNA 
D)  DNA 
E)  None of these choices are correct.

Question 11

The fluid-mosaic model of the plasma membrane suggests that

Accepted Answer

A)  cholesterol forms the outermost layer of the membrane. 
B)  proteins form a "liquid" sea in the membrane. 
C)  phospholipids form a single lipid layer in the center of the membrane. 
D)  the membrane is neither rigid nor static in structure. 
E)  proteins are not a part of the membrane. 
A)  cholesterol forms the outermost layer of the membrane. 
B)  proteins form a "liquid" sea in the membrane. 
C)  phospholipids form a single lipid layer in the center of the membrane. 
D)  the membrane is neither rigid nor static in structure. 
E)  proteins are not a part of the membrane.

Question 12

Skeletal muscle cells need large numbers of _______ to make the many proteins they contain.

Accepted Answer

A)  centrosomes 
B)  peroxisomes 
C)  liposomes 
D)  ribosomes 
E)  lysosomes 
A)  centrosomes 
B)  peroxisomes 
C)  liposomes 
D)  ribosomes 
E)  lysosomes

Question 13

The time between cell divisions is called

Accepted Answer

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

Question 14

Translation

Accepted Answer

A)  requires three types of DNA. 
B)  requires the pairing of codons on mRNA with anticodons on tRNA. 
C)  involves synthesis of RNA from DNA molecules. 
D)  takes place in the nucleus. 
E)  requires replication of DNA. 
A)  requires three types of DNA. 
B)  requires the pairing of codons on mRNA with anticodons on tRNA. 
C)  involves synthesis of RNA from DNA molecules. 
D)  takes place in the nucleus. 
E)  requires replication of DNA.

Question 15

What type of membrane proteins are integral proteins that move ions or molecules across 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 16

Microvilli

Accepted Answer

A)  are extensions of the lysosomal membrane. 
B)  function to make the cell mobile. 
C)  are supported by microtubules. 
D)  move the cell. 
E)  increase the surface area of the cell. 
A)  are extensions of the lysosomal membrane. 
B)  function to make the cell mobile. 
C)  are supported by microtubules. 
D)  move the cell. 
E)  increase the surface area of the cell.

Question 17

The nucleus of a cell functions to

Accepted Answer

A)  digest lipids. 
B)  produce ATP. 
C)  produce secretory vesicles. 
D)  control and coordinate cellular activities. 
E)  synthesize proteins. 
A)  digest lipids. 
B)  produce ATP. 
C)  produce secretory vesicles. 
D)  control and coordinate cellular activities. 
E)  synthesize proteins.

Question 18

Three adjacent nucleotides in mRNA are called a

Accepted Answer

A)  pre-mRNA. 
B)  proenzyme. 
C)  gene. 
D)  ribosomal RNA (rRN
A) . 
E)  codon. 
A)  pre-mRNA. 
B)  proenzyme. 
C)  gene. 
D)  ribosomal RNA (rRN
A) . 
E)  codon.

Question 19

The structural RNA of ribosomes is a

Accepted Answer

A)  pre-mRNA. 
B)  proenzyme. 
C)  gene. 
D)  ribosomal RNA (rRN
A) . 
E)  codon. 
A)  pre-mRNA. 
B)  proenzyme. 
C)  gene. 
D)  ribosomal RNA (rRN
A) . 
E)  codon.

Question 20

Cytoplasm is found

Accepted Answer

A)  in the nucleus. 
B)  outside the nucleus but inside the plasma membrane. 
C)  in the cisternae of the endoplasmic reticulum. 
D)  on the cristae of the mitochondria. 
E)  between the phospholipids in the plasma membrane. 
A)  in the nucleus. 
B)  outside the nucleus but inside the plasma membrane. 
C)  in the cisternae of the endoplasmic reticulum. 
D)  on the cristae of the mitochondria. 
E)  between the phospholipids in the plasma membrane.

Exam 3: Cell Biology

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

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

Certain cells in the liver ingest bacteria and debris from damaged cells by a process called

-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 "E"?

A person suffered burns over a large part of his body. Evaporation of fluid from the surface of burned areas occurs. As a result of the evaporation process, cells will tend to

-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 "D"?

Chromosomes begin migrating towards poles of the cell during

A protein that is converted to an active enzyme is a

Vitamin A, a fat-soluble vitamin, would move across the plasma membrane into the cell

Which of the following molecules contains the anticodon?

The fluid-mosaic model of the plasma membrane suggests that

Skeletal muscle cells need large numbers of _______ to make the many proteins they contain.

The time between cell divisions is called

Translation

What type of membrane proteins are integral proteins that move ions or molecules across plasma membrane?

Microvilli

The nucleus of a cell functions to

Three adjacent nucleotides in mRNA are called a

The structural RNA of ribosomes is a

Cytoplasm is found

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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