Question 1

The cytoskeleton consists of

Accepted Answer

A) ribosomes,the nucleus,and the Golgi apparatus. 
B) microfilaments,mitochondria,and lipochromes. 
C) microtubules,actin filaments,and intermediate filaments. 
D) actin filaments,mitochondria,and intermediate filaments. 
E) lipochromes,microfilaments,and microtubules. 
A) ribosomes,the nucleus,and the Golgi apparatus. 
B) microfilaments,mitochondria,and lipochromes. 
C) microtubules,actin filaments,and intermediate filaments. 
D) actin filaments,mitochondria,and intermediate filaments. 
E) lipochromes,microfilaments,and microtubules.

Question 2

If all of the peroxisomes in a cell were suddenly removed,how would this affect its immediate activity and function?

Accepted Answer

A) The cell would no longer be able to break down glucose. 
B) The cell would be unable to perform transcription. 
C) The cell would no longer be able to break down fatty acids,hydrogen peroxide,and amino acids. 
D) The cell would be unable to produce proteins. 
E) The cell would no longer be able to break down proteins and nucleic acids. 
A) The cell would no longer be able to break down glucose. 
B) The cell would be unable to perform transcription. 
C) The cell would no longer be able to break down fatty acids,hydrogen peroxide,and amino acids. 
D) The cell would be unable to produce proteins. 
E) The cell would no longer be able to break down proteins and nucleic acids.

Question 3

Channel proteins

Accepted Answer

A) allow cells to recognize one another. 
B) are binding sites for other molecules. 
C) utilize the G protein complex to function. 
D) are found only on endoplasmic reticulum. 
E) provide a tunnel through which ions or molecules can enter or leave the cell. 
A) allow cells to recognize one another. 
B) are binding sites for other molecules. 
C) utilize the G protein complex to function. 
D) are found only on endoplasmic reticulum. 
E) provide a tunnel through which ions or molecules can enter or leave the cell.

Question 4

What type of membrane proteins have an exposed site on the outer cell surface that can attach to a ligand?

Accepted Answer

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

Question 5

Mitosis forms

Accepted Answer

A) one daughter cell and another incomplete cell. 
B) daughter cells called gametes. 
C) two daughter cells with twice the amount of DNA as the mother cell. 
D) two daughter cells with the same amount of DNA as the mother cell. 
E) two daughter cells with half the DNA of the mother cell. 
A) one daughter cell and another incomplete cell. 
B) daughter cells called gametes. 
C) two daughter cells with twice the amount of DNA as the mother cell. 
D) two daughter cells with the same amount of DNA as the mother cell. 
E) two daughter cells with half the DNA of the mother cell.

Question 6

Which of the following are ciliated cells?

Accepted Answer

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

Question 7

Endocytosis

Accepted Answer

A) is a process that requires a carrier molecule but does not use cellular energy. 
B) moves material out of the cell. 
C) ends cell functions. 
D) is movement of water through a selectively permeable membrane. 
E) is the bulk uptake of material through the plasma membrane by vesicle formation. 
A) is a process that requires a carrier molecule but does not use cellular energy. 
B) moves material out of the cell. 
C) ends cell functions. 
D) is movement of water through a selectively permeable membrane. 
E) is the bulk uptake of material through the plasma membrane by vesicle formation.

Question 8

A particular membrane transport process exhibits saturation,uses carrier molecules,but does NOT require ATP.The process is probably

Accepted Answer

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

Question 9

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

Accepted Answer

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

Question 10

If a toxic drug inhibited mRNA synthesis,which of the following would be most directly affected?

Accepted Answer

A) protein synthesis 
B) intracellular digestion 
C) active transport 
D) microtubule production 
E) secretion of glycoproteins and lipoproteins 
A) protein synthesis 
B) intracellular digestion 
C) active transport 
D) microtubule production 
E) secretion of glycoproteins and lipoproteins

Question 11

The nucleic acid that is synthesized in the nucleus from a DNA template is

Accepted Answer

A) tRNA. 
B) mRNA. 
C) rRNA. 
D) All of these are correct. 
A) tRNA. 
B) mRNA. 
C) rRNA. 
D) All of these are correct.

Question 12

What is the term used to describe a small generic membrane-bound structure that transports substances to the plasma membrane for release by exocytosis?

Accepted Answer

A)  Secretory vesicle 
B)  Proteosome granule 
C)  Chromatid 
D)  Organelle 
E)  Centrosome 
A)  Secretory vesicle 
B)  Proteosome granule 
C)  Chromatid 
D)  Organelle 
E)  Centrosome

Question 13

DNA replication occurs during

Accepted Answer

A) the S phase of interphase. 
B) the G1 phase of interphase. 
C) metaphase. 
D) anaphase. 
E) telophase. 
A) the S phase of interphase. 
B) the G1 phase of interphase. 
C) metaphase. 
D) anaphase. 
E) telophase.

Question 14

A cell that produces many proteins for secretion would have large numbers of

Accepted Answer

A) mitochondria and cilia. 
B) rough ER and Golgi apparatus. 
C) ribosomes and centrioles. 
D) Golgi apparatus and microvilli. 
E) lysosomes and Golgi apparatus. 
A) mitochondria and cilia. 
B) rough ER and Golgi apparatus. 
C) ribosomes and centrioles. 
D) Golgi apparatus and microvilli. 
E) lysosomes and Golgi apparatus.

Question 15

In _______,ions or molecules move in opposite directions.

Accepted Answer

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

Question 16

The _____________ contains the genetic information of the cell.

Accepted Answer

A) nucleolus 
B) nucleoplasm 
C) nucleus 
D) nucleosome 
E) ribosome 
A) nucleolus 
B) nucleoplasm 
C) nucleus 
D) nucleosome 
E) ribosome

Question 17

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

Accepted Answer

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

Question 18

Experimental manipulation to increase the energy output of the cell might include

Accepted Answer

A) increasing protein synthesis. 
B) rupturing the lysosomes in the cell. 
C) decreasing nuclear size. 
D) increasing the number of mitochondria. 
E) removing some of the ribosomes. 
A) increasing protein synthesis. 
B) rupturing the lysosomes in the cell. 
C) decreasing nuclear size. 
D) increasing the number of mitochondria. 
E) removing some of the ribosomes.

Question 19

Which of the following organelles may or may not have ribosomes attached?

Accepted Answer

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

Question 20

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.

Exam 3: Cell Biology

The cytoskeleton consists of

If all of the peroxisomes in a cell were suddenly removed,how would this affect its immediate activity and function?

Channel proteins

What type of membrane proteins have an exposed site on the outer cell surface that can attach to a ligand?

Mitosis forms

Which of the following are ciliated cells?

Endocytosis

A particular membrane transport process exhibits saturation,uses carrier molecules,but does NOT require ATP.The process is probably

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

If a toxic drug inhibited mRNA synthesis,which of the following would be most directly affected?

The nucleic acid that is synthesized in the nucleus from a DNA template is

What is the term used to describe a small generic membrane-bound structure that transports substances to the plasma membrane for release by exocytosis?

DNA replication occurs during

A cell that produces many proteins for secretion would have large numbers of

In _______,ions or molecules move in opposite directions.

The _____________ contains the genetic information of the cell.

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

Experimental manipulation to increase the energy output of the cell might include

Which of the following organelles may or may not have ribosomes attached?

Which of the following will increase the rate of diffusion?

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,electrolyte,and Acid-Based Balance

Reproductive System

Development,growth,aging,and Genetics

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