Question 1

A red blood cell placed in pure water would_________ .

Accepted Answer

A)  swell and burst 
B)  shrink 
C)  neither shrink nor swell 
D)  swell initially, then shrink as equilibrium is reached 
A)  swell and burst 
B)  shrink 
C)  neither shrink nor swell 
D)  swell initially, then shrink as equilibrium is reached

Question 2

Which of the following statements is most correct regarding the intracellular chemical signals known as "second messengers"?

Accepted Answer

A)  Cyclic AMP and calcium may be second messengers. 
B)  Second messengers act through receptors called K-proteins. 
C)  Second messengers usually inactivate protein kinase enzymes. 
D)  Second messengers usually act to remove nitric oxide (NO) from the cell. 
A)  Cyclic AMP and calcium may be second messengers. 
B)  Second messengers act through receptors called K-proteins. 
C)  Second messengers usually inactivate protein kinase enzymes. 
D)  Second messengers usually act to remove nitric oxide (NO) from the cell.

Question 3

A cell engulfing a relatively large particle will likely utilize __________.

Accepted Answer

A)  exocytosis 
B)  phagocytosis 
C)  receptor-mediated endocytosis 
D)  pinocytosis 
A)  exocytosis 
B)  phagocytosis 
C)  receptor-mediated endocytosis 
D)  pinocytosis

Question 4

The speed of individual particle diffusion is influenced by temperature and particle size, not by concentration.

Accepted Answer

A) True 
 B)False

Question 5

Which of the following is NOT a factor that binds cells together?

Accepted Answer

A)  glycolipids in the glycocalyx 
B)  wavy contours of the membranes of adjacent cells 
C)  special membrane junctions 
D)  glycoproteins in the glycocalyx 
A)  glycolipids in the glycocalyx 
B)  wavy contours of the membranes of adjacent cells 
C)  special membrane junctions 
D)  glycoproteins in the glycocalyx

Question 6

Mitosis __________.

Accepted Answer

A)  is division of the genetic material within the nucleus 
B)  is always a part of the cell cycle 
C)  is the formation of sex cells 
D)  creates diversity in genetic potential 
A)  is division of the genetic material within the nucleus 
B)  is always a part of the cell cycle 
C)  is the formation of sex cells 
D)  creates diversity in genetic potential

Question 7

In all living cells hydrostatic and osmotic pressures exist. Define these pressures and explain how they are used in the concept of tonicity of the cell.

Accepted Answer

Hydrostatic pressure is the pressure of

Question 8

What are cell exons and introns?

Accepted Answer

Exons are amino acid-specifying informat

Question 9

Which of the following is a principle of the fluid mosaic model of cell membrane structure?

Accepted Answer

A)  All proteins associated with the cell membrane are contained in a fluid layer on the outside of the cell. 
B)  The lipid bilayer is a solid at body temperature, thus protecting the cell. 
C)  Phospholipids consist of a polar head and a nonpolar tail made of three fatty acid chains. 
D)  Phospholipids form a bilayer that is largely impermeable to water-soluble molecules. 
A)  All proteins associated with the cell membrane are contained in a fluid layer on the outside of the cell. 
B)  The lipid bilayer is a solid at body temperature, thus protecting the cell. 
C)  Phospholipids consist of a polar head and a nonpolar tail made of three fatty acid chains. 
D)  Phospholipids form a bilayer that is largely impermeable to water-soluble molecules.

Question 10

Which vesicular transport process occurs primarily in some white blood cells and macrophages?

Accepted Answer

A)  exocytosis 
B)  phagocytosis 
C)  intracellular vesicular trafficking 
D)  pinocytosis 
A)  exocytosis 
B)  phagocytosis 
C)  intracellular vesicular trafficking 
D)  pinocytosis

Question 11

Cancerous cells can divide so rapidly that they will often produce a glycocalyx that is different than the other cells in the body. This may result in _________.

Accepted Answer

A)  a decrease in the permeability of the tumor cell's plasma membrane preventing the uptake of chemotherapy drugs 
B)  allowing the cancer cells to bind to their healthy, neighboring cells 
C)  cells of the immune system recognizing the tumorous cells as foreign and destroying them 
D)  the cancer cells conserving energy for more growth 
A)  a decrease in the permeability of the tumor cell's plasma membrane preventing the uptake of chemotherapy drugs 
B)  allowing the cancer cells to bind to their healthy, neighboring cells 
C)  cells of the immune system recognizing the tumorous cells as foreign and destroying them 
D)  the cancer cells conserving energy for more growth

Question 12

DNA replication requires an enzyme called RNA polymerase and results in a semi-conserved new molecule of
DNA.

Accepted Answer

A) True 
 B)False

Question 13

Other than the nucleus, which organelle has its own DNA?

Accepted Answer

The answer of Other than the nucleus, which organelle has...

Question 14

Describe the difference in cell division between normal cells and cancer cells.

Accepted Answer

Normal cells divide in two distinct even

Question 15

What are nucleolar organizer regions?

Accepted Answer

nuclear regions cont

Question 16

Your patient is sitting in your office for a pre-operative appointment and asks you why he will be given a saline
IV rather than one containing pure sterile water. What is your response?

Accepted Answer

Saline contains solutes that make it iso

Question 17

Which of the following is NOT a function of lysosomes?

Accepted Answer

A)  breaking down bone to release calcium ions into the blood 
B)  digesting particles taken in by endocytosis 
C)  help in the formation of cell membranes 
D)  degrading worn-out or nonfunctional organelles 
A)  breaking down bone to release calcium ions into the blood 
B)  digesting particles taken in by endocytosis 
C)  help in the formation of cell membranes 
D)  degrading worn-out or nonfunctional organelles

Question 18

Which of the following is FALSE regarding the membrane potential?

Accepted Answer

A)  The resting membrane potential is determined mainly by the concentration gradients and differential permeability of the plasma membrane to K+ and Na+ ions. 
B)  In their resting state, all body cells exhibit a resting membrane potential. 
C)  The resting membrane potential occurs due to active transport of ions across the membrane due to the sodium-potassium pump. 
D)  The resting membrane potential is maintained solely by passive transport processes. 
A)  The resting membrane potential is determined mainly by the concentration gradients and differential permeability of the plasma membrane to K+ and Na+ ions. 
B)  In their resting state, all body cells exhibit a resting membrane potential. 
C)  The resting membrane potential occurs due to active transport of ions across the membrane due to the sodium-potassium pump. 
D)  The resting membrane potential is maintained solely by passive transport processes.

Question 19

Beta cells in the pancreas produce and secrete the protein hormone insulin. You would expect to see a relatively large amount of which organelles in these cells?

Accepted Answer

A)  Golgi apparatus, rough endoplasmic reticulum 
B)  mitochondria, and cilia 
C)  smooth endoplasmic reticulum, and lysosomes 
D)  cytoskeleton, and peroxisomes 
A)  Golgi apparatus, rough endoplasmic reticulum 
B)  mitochondria, and cilia 
C)  smooth endoplasmic reticulum, and lysosomes 
D)  cytoskeleton, and peroxisomes

Question 20

List possible causes of aging.

Accepted Answer

1. chemical insults and free radical for

A red blood cell placed in pure water would_________ .

Which of the following statements is most correct regarding the intracellular chemical signals known as "second messengers"?

A cell engulfing a relatively large particle will likely utilize __________.

The speed of individual particle diffusion is influenced by temperature and particle size, not by concentration.

Which of the following is NOT a factor that binds cells together?

Mitosis __________.

In all living cells hydrostatic and osmotic pressures exist. Define these pressures and explain how they are used in the concept of tonicity of the cell.

What are cell exons and introns?

Which of the following is a principle of the fluid mosaic model of cell membrane structure?

Which vesicular transport process occurs primarily in some white blood cells and macrophages?

Cancerous cells can divide so rapidly that they will often produce a glycocalyx that is different than the other cells in the body. This may result in _________.

DNA replication requires an enzyme called RNA polymerase and results in a semi-conserved new molecule of DNA.

Other than the nucleus, which organelle has its own DNA?

Describe the difference in cell division between normal cells and cancer cells.

What are nucleolar organizer regions?

Your patient is sitting in your office for a pre-operative appointment and asks you why he will be given a saline IV rather than one containing pure sterile water. What is your response?

Which of the following is NOT a function of lysosomes?

Which of the following is FALSE regarding the membrane potential?

Beta cells in the pancreas produce and secrete the protein hormone insulin. You would expect to see a relatively large amount of which organelles in these cells?

List possible causes of aging.

The Human Body: an Orientation

Chemistry Comes Alive

Tissue: the Living Fabric

The Integumentary System

Bones and Skeletal Tissues

The Skeleton

Joints

Muscles and Muscle Tissue

The Muscular System

Fundamentals of the Nervous System and Nervous Tissue

The Central Nervous System

The Peripheral Nervous System and Reflex Activity

The Autonomic Nervous System

The Special Senses

The Endocrine System

Blood

The Cardiovascular System: the Heart

The Cardiovascular System: Blood Vessels

The Lymphatic System and Lymphoid Organs and Tissues

Filters

Exam 3: Cells: the Living Units

A red blood cell placed in pure water would_________ .

Which of the following statements is most correct regarding the intracellular chemical signals known as "second messengers"?

A cell engulfing a relatively large particle will likely utilize __________.

The speed of individual particle diffusion is influenced by temperature and particle size, not by concentration.

Which of the following is NOT a factor that binds cells together?

Mitosis __________.

In all living cells hydrostatic and osmotic pressures exist. Define these pressures and explain how they are used in the concept of tonicity of the cell.

What are cell exons and introns?

Which of the following is a principle of the fluid mosaic model of cell membrane structure?

Which vesicular transport process occurs primarily in some white blood cells and macrophages?

Cancerous cells can divide so rapidly that they will often produce a glycocalyx that is different than the other cells in the body. This may result in _________.

DNA replication requires an enzyme called RNA polymerase and results in a semi-conserved new molecule of DNA.

Other than the nucleus, which organelle has its own DNA?

Describe the difference in cell division between normal cells and cancer cells.

What are nucleolar organizer regions?

Your patient is sitting in your office for a pre-operative appointment and asks you why he will be given a saline IV rather than one containing pure sterile water. What is your response?

Which of the following is NOT a function of lysosomes?

Which of the following is FALSE regarding the membrane potential?

Beta cells in the pancreas produce and secrete the protein hormone insulin. You would expect to see a relatively large amount of which organelles in these cells?

List possible causes of aging.

The Human Body: an Orientation

Chemistry Comes Alive

Tissue: the Living Fabric

The Integumentary System

Bones and Skeletal Tissues

The Skeleton

Joints

Muscles and Muscle Tissue

The Muscular System

Fundamentals of the Nervous System and Nervous Tissue

The Central Nervous System

The Peripheral Nervous System and Reflex Activity

The Autonomic Nervous System

The Special Senses

The Endocrine System

Blood

The Cardiovascular System: the Heart

The Cardiovascular System: Blood Vessels

The Lymphatic System and Lymphoid Organs and Tissues

Filters