Question 1

Active transport

Accepted Answer

A)  follows osmotic pressure gradients. 
B)  can move substances along their concentration gradient. 
C)  does not require metabolic energy (ATP). 
D)  involves vesicle formation. 
E)  requires ATP. 
A)  follows osmotic pressure gradients. 
B)  can move substances along their concentration gradient. 
C)  does not require metabolic energy (ATP). 
D)  involves vesicle formation. 
E)  requires ATP.

Question 2

If 0.9% NaCl (saline) solution is isotonic to a cell, then a 0.5% saline solution

Accepted Answer

A)  is hypertonic to the cell. 
B)  will cause crenation of the cell. 
C)  is hypotonic to the cell. 
D)  will shrink the cell. 
E)  will not affect the cell. 
A)  is hypertonic to the cell. 
B)  will cause crenation of the cell. 
C)  is hypotonic to the cell. 
D)  will shrink the cell. 
E)  will not affect the cell.

Question 3

What organelle contains the chromosomes?

Accepted Answer

A)  nucleus 
B)  ribosomes 
C)  lysosomes 
D)  mitochondria 
E)  centrioles 
A)  nucleus 
B)  ribosomes 
C)  lysosomes 
D)  mitochondria 
E)  centrioles

Question 4

In which part of the cell cycle do chromosomes align along the equator?

Accepted Answer

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

Question 5

What type of cell has abundant ribosomes?

Accepted Answer

A)  white blood cell, a phagocyte 
B)  red blood cell (transports oxygen) 
C)  liver cells that detoxify hydrogen peroxide 
D)  cardiac muscle cells (require large amounts of ATP) 
E)  fibroblast (makes protein fibers) 
A)  white blood cell, a phagocyte 
B)  red blood cell (transports oxygen) 
C)  liver cells that detoxify hydrogen peroxide 
D)  cardiac muscle cells (require large amounts of ATP) 
E)  fibroblast (makes protein fibers)

Question 6

Communication between cells occurs when chemical messengers from one cell bind to _____ on another cell.

Accepted Answer

A)  channel proteins 
B)  receptor proteins 
C)  marker molecules 
D)  second messengers 
E)  integrins 
A)  channel proteins 
B)  receptor proteins 
C)  marker molecules 
D)  second messengers 
E)  integrins

Question 7

In DNA replication,

Accepted Answer

A)  the leading strand is formed as a continuous strand. 
B)  new nucleotides are added at the 5' end of the growing DNA strand. 
C)  DNA polymerase splices the short segments of the lagging strand together. 
D)  only introns are replicated. 
E)  the two existing strands are not used as templates. 
A)  the leading strand is formed as a continuous strand. 
B)  new nucleotides are added at the 5' end of the growing DNA strand. 
C)  DNA polymerase splices the short segments of the lagging strand together. 
D)  only introns are replicated. 
E)  the two existing strands are not used as templates.

Question 8

Of the organelles listed, which one does NOT contain microtubules?

Accepted Answer

A)  cilia 
B)  flagella 
C)  centrioles 
D)  microvilli 
E)  spindle fibers 
A)  cilia 
B)  flagella 
C)  centrioles 
D)  microvilli 
E)  spindle fibers

Question 9

Receptor-mediated endocytosis

Accepted Answer

A)  does not need ATP; the receptors supply the energy. 
B)  exhibits specificity. 
C)  occurs if oxygen is available. 
D)  is a type of passive transport. 
E)  moves materials out of the cell. 
A)  does not need ATP; the receptors supply the energy. 
B)  exhibits specificity. 
C)  occurs if oxygen is available. 
D)  is a type of passive transport. 
E)  moves materials out of the cell.

Question 10

What type of attachment proteins attach cells to extracellular molecules?

Accepted Answer

A)  ligands 
B)  integrins 
C)  adherins 
D)  cadherins 
A)  ligands 
B)  integrins 
C)  adherins 
D)  cadherins

Question 11

The collection of carbohydrates, glycolipids, and glycoproteins of the plasma membrane is called the

Accepted Answer

A)  fluid mosaic. 
B)  extracellular membrane. 
C)  intercellular fluid. 
D)  phospholipid. 
E)  glycocalyx. 
A)  fluid mosaic. 
B)  extracellular membrane. 
C)  intercellular fluid. 
D)  phospholipid. 
E)  glycocalyx.

Question 12

Plasma membrane phospholipids

Accepted Answer

A)  have nonpolar fatty acid tails. 
B)  form a bilayer. 
C)  have polar phosphate heads. 
D)  create a selectively permeable barrier. 
E)  All of these choices are correct. 
A)  have nonpolar fatty acid tails. 
B)  form a bilayer. 
C)  have polar phosphate heads. 
D)  create a selectively permeable barrier. 
E)  All of these choices are correct.

Question 13

Cytokinesis is completed at the end of this phase.

Accepted Answer

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

Question 14

Glycolipids would contain both lipids and

Accepted Answer

A)  carbohydrates. 
B)  proteins. 
C)  electrolytes. 
D)  cholesterol. 
E)  amino acids. 
A)  carbohydrates. 
B)  proteins. 
C)  electrolytes. 
D)  cholesterol. 
E)  amino acids.

Question 15

A mRNA containing introns 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 16

Which of the following is NOT an example of a cytoplasmic inclusion?

Accepted Answer

A)  lipochrome 
B)  hemoglobin 
C)  actin filaments 
D)  melanin 
E)  lipid droplets 
A)  lipochrome 
B)  hemoglobin 
C)  actin filaments 
D)  melanin 
E)  lipid droplets

Question 17

What molecule(s) cause(s) a portion of a DNA molecule to unwind for transcription?

Accepted Answer

A)  RNA ploymerase 
B)  transcription factors 
C)  spliceosomes 
D)  poly-A tail 
E)  7-methylguanosine cap 
A)  RNA ploymerase 
B)  transcription factors 
C)  spliceosomes 
D)  poly-A tail 
E)  7-methylguanosine cap

Question 18

The movement of water through a selectively permeable membrane is called

Accepted Answer

A)  active transport. 
B)  diffusion. 
C)  endocytosis. 
D)  facilitated diffusion. 
E)  osmosis. 
A)  active transport. 
B)  diffusion. 
C)  endocytosis. 
D)  facilitated diffusion. 
E)  osmosis.

Question 19

Which of the following is NOT a type of cancer therapy?

Accepted Answer

A)  killing tissue with x-rays 
B)  killing tissue with lasers 
C)  surgical removal of the tissue 
D)  use of drugs to kill cells 
E)  use of drugs to increase the blood supply to the tumor 
A)  killing tissue with x-rays 
B)  killing tissue with lasers 
C)  surgical removal of the tissue 
D)  use of drugs to kill cells 
E)  use of drugs to increase the blood supply to the tumor

Question 20

-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 "C"?

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

Exam 3: Cell Biology

Active transport

If 0.9% NaCl (saline) solution is isotonic to a cell, then a 0.5% saline solution

What organelle contains the chromosomes?

In which part of the cell cycle do chromosomes align along the equator?

What type of cell has abundant ribosomes?

Communication between cells occurs when chemical messengers from one cell bind to _____ on another cell.

In DNA replication,

Of the organelles listed, which one does NOT contain microtubules?

Receptor-mediated endocytosis

What type of attachment proteins attach cells to extracellular molecules?

The collection of carbohydrates, glycolipids, and glycoproteins of the plasma membrane is called the

Plasma membrane phospholipids

Cytokinesis is completed at the end of this phase.

Glycolipids would contain both lipids and

A mRNA containing introns is a

Which of the following is NOT an example of a cytoplasmic inclusion?

What molecule(s) cause(s) a portion of a DNA molecule to unwind for transcription?

The movement of water through a selectively permeable membrane is called

Which of the following is NOT a type of cancer therapy?

-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 "C"?

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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