Question 1

Which of the following activities is a function of the plasma membrane?

Accepted Answer

A)  digestion of unneeded cell organelles 
B)  recognition of bacterial cells by the immune system 
C)  transport of products from the nucleus to the endoplasmic reticulum 
D)  cell metabolism 
E)  detoxification 
A)  digestion of unneeded cell organelles 
B)  recognition of bacterial cells by the immune system 
C)  transport of products from the nucleus to the endoplasmic reticulum 
D)  cell metabolism 
E)  detoxification

Question 2

The shaft of a flagellum contains _____________ microtubule doublets around its periphery.

Accepted Answer

A)  2 
B)  2 + 9 
C)  9 
D)  2+7 
E)  7 
A)  2 
B)  2 + 9 
C)  9 
D)  2+7 
E)  7

Question 3

Which of the following are consistent with facilitated diffusion? (1) movement is against a concentration gradient
(2) movement is with a concentration gradient
(3) involves a carrier molecule
(4) involves cotransport
(5) involves counter transport
(6) exhibits competition and saturation

Accepted Answer

A)  1, 2, 4, 5, 6 
B)  2, 3, 6 
C)  2, 3, 5, 6 
D)  1, 3, 4, 5, 6 
E)  2, 3, 4, 6 
A)  1, 2, 4, 5, 6 
B)  2, 3, 6 
C)  2, 3, 5, 6 
D)  1, 3, 4, 5, 6 
E)  2, 3, 4, 6

Question 4

Which of the following is NOT true of a gene?

Accepted Answer

A)  It is all the triplets needed to make a functional RNA or protein. 
B)  It is a segment of a DNA molecule. 
C)  Each chromosome contains one gene. 
D)  It is the functional unit of heredity. 
E)  All of these are true of a gene. 
A)  It is all the triplets needed to make a functional RNA or protein. 
B)  It is a segment of a DNA molecule. 
C)  Each chromosome contains one gene. 
D)  It is the functional unit of heredity. 
E)  All of these are true of a gene.

Question 5

In _______, ions or molecules move in opposite directions.

Accepted Answer

A)  symport 
B)  uniport 
C)  antiport 
D)  comport 
E)  ionport 
A)  symport 
B)  uniport 
C)  antiport 
D)  comport 
E)  ionport

Question 6

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

Accepted Answer

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

Question 7

A cancer that is able to spread and become worse is called

Accepted Answer

A)  metastasis 
B)  malignant 
C)  sarcoma 
D)  benign 
E)  carcinoma 
A)  metastasis 
B)  malignant 
C)  sarcoma 
D)  benign 
E)  carcinoma

Question 8

The lower limit of resolution of a light microscope is

Accepted Answer

A)  100$\mu$m 
B)  0.1$\mu$m 
C)  10$\mu$m 
D)  0.01$\mu$m 
E)  1.0$\mu$m 
A)  100$\mu$m 
B)  0.1$\mu$m 
C)  10$\mu$m 
D)  0.01$\mu$m 
E)  1.0$\mu$m

Question 9

The leading strand of DNA is formed as

Accepted Answer

A)  short segments called Okazaki fragments. 
B)  a continuous strand, adding to the 3´ end. 
C)  a continuous strand, adding to the 5´ end. 
D)  a template. 
E)  soon as the lagging strand is formed. 
A)  short segments called Okazaki fragments. 
B)  a continuous strand, adding to the 3´ end. 
C)  a continuous strand, adding to the 5´ end. 
D)  a template. 
E)  soon as the lagging strand is formed.

Question 10

A cell with abundant peroxisomes would most likely be involved in

Accepted Answer

A)  secretion. 
B)  storage of glycogen. 
C)  detoxification activities. 
D)  cellular communication. 
E)  protein synthesis. 
A)  secretion. 
B)  storage of glycogen. 
C)  detoxification activities. 
D)  cellular communication. 
E)  protein synthesis.

Question 11

Which of the following activities is associated with lysosomes?

Accepted Answer

A)  exocytosis 
B)  intracellular support 
C)  destruction of nonfunctional organelles 
D)  energy production 
E)  endocytosis 
A)  exocytosis 
B)  intracellular support 
C)  destruction of nonfunctional organelles 
D)  energy production 
E)  endocytosis

Question 12

The environment outside the plasma membrane is most appropriately referred to as

Accepted Answer

A)  intracellular. 
B)  extracellular. 
C)  multicellular. 
D)  centrocellular. 
E)  None of these choices are correct. 
A)  intracellular. 
B)  extracellular. 
C)  multicellular. 
D)  centrocellular. 
E)  None of these choices are correct.

Question 13

The aroma of cookies baking in the kitchen reaches you in the living room. The distribution of this odor throughout the house is an example of

Accepted Answer

A)  active transport. 
B)  dialysis. 
C)  osmosis. 
D)  filtration. 
E)  diffusion. 
A)  active transport. 
B)  dialysis. 
C)  osmosis. 
D)  filtration. 
E)  diffusion.

Question 14

-Red blood cells (RBCs) have been placed in three different solutions: hypotonic, hypertonic, isotonic. What is the condition of the RBC in solution "B"?

Accepted Answer

A)  hypotonic solution 
B)  hypertonic solution 
C)  isotonic solution 
D)  hemolyzed 
E)  crenated 
A)  hypotonic solution 
B)  hypertonic solution 
C)  isotonic solution 
D)  hemolyzed 
E)  crenated

Question 15

If you compare a cell with a manufacturing plant that exports goods, the cell's _____ could be compared to the manufacturing plant's shipping department.

Accepted Answer

A)  nucleus 
B)  lysosome 
C)  Golgi apparatus 
D)  endoplasmic reticulum 
E)  ribosome 
A)  nucleus 
B)  lysosome 
C)  Golgi apparatus 
D)  endoplasmic reticulum 
E)  ribosome

Question 16

Which of the following will increase the rate of diffusion?

Accepted Answer

A)  an increase in the viscosity of the solvent 
B)  an increase in the temperature 
C)  an increase in the molecular weight of the diffusing particles 
D)  an increase in the distance the molecules have to travel 
E)  All of these choices are correct. 
A)  an increase in the viscosity of the solvent 
B)  an increase in the temperature 
C)  an increase in the molecular weight of the diffusing particles 
D)  an increase in the distance the molecules have to travel 
E)  All of these choices are correct.

Question 17

Which of the following events occurs during anaphase?

Accepted Answer

A)  Chromatin strands condense to form chromosomes. 
B)  Chromosomes migrate to opposite poles of the cell. 
C)  Spindle fibers are formed. 
D)  The nuclear envelope degenerates. 
E)  Cytokinesis completes. 
A)  Chromatin strands condense to form chromosomes. 
B)  Chromosomes migrate to opposite poles of the cell. 
C)  Spindle fibers are formed. 
D)  The nuclear envelope degenerates. 
E)  Cytokinesis completes.

Question 18

-What structure does "C" represent on the diagram of the plasma membrane?

Accepted Answer

A)  membrane channel protein 
B)  phospholipid bilayer 
C)  internal membrane surface 
D)  peripheral protein 
E)  integral protein 
A)  membrane channel protein 
B)  phospholipid bilayer 
C)  internal membrane surface 
D)  peripheral protein 
E)  integral protein

Question 19

Organelles

Accepted Answer

A)  are extracellular structures. 
B)  are unspecialized portions of a cell. 
C)  generally lack membranes. 
D)  vary in number and type depending on cell function. 
E)  are structural, but not functional parts of the cell. 
A)  are extracellular structures. 
B)  are unspecialized portions of a cell. 
C)  generally lack membranes. 
D)  vary in number and type depending on cell function. 
E)  are structural, but not functional parts of the cell.

Question 20

Which transport process requires a carrier molecule but does not use cellular energy?

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

Exam 3: Cell Biology

Which of the following activities is a function of the plasma membrane?

The shaft of a flagellum contains _____________ microtubule doublets around its periphery.

Which of the following are consistent with facilitated diffusion? (1) movement is against a concentration gradient (2) movement is with a concentration gradient (3) involves a carrier molecule (4) involves cotransport (5) involves counter transport (6) exhibits competition and saturation

Which of the following is NOT true of a gene?

In _______, ions or molecules move in opposite directions.

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

A cancer that is able to spread and become worse is called

The lower limit of resolution of a light microscope is

The leading strand of DNA is formed as

A cell with abundant peroxisomes would most likely be involved in

Which of the following activities is associated with lysosomes?

The environment outside the plasma membrane is most appropriately referred to as

The aroma of cookies baking in the kitchen reaches you in the living room. The distribution of this odor throughout the house is an example of

-Red blood cells (RBCs) have been placed in three different solutions: hypotonic, hypertonic, isotonic. What is the condition of the RBC in solution "B"?

If you compare a cell with a manufacturing plant that exports goods, the cell's _____ could be compared to the manufacturing plant's shipping department.

Which of the following will increase the rate of diffusion?

Which of the following events occurs during anaphase?

-What structure does "C" represent on the diagram of the plasma membrane?

Organelles

Which transport process requires a carrier molecule but does not use cellular energy?

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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