Question 1

When tissues are injured or infected, chemical signals can be releases that affect the plasma membrane of cells that line the nearby blood vessels. These blood vessels cells (endothelial cells)  respond to the chemical signals by displaying a type of glycoproteins on their surface.These proteins will attach to circulating white blood cells bringing them to the site of injury or infection. These glycoproteins would best be described as ________.

Accepted Answer

A)   Cell Adhesion Molecules (CAMs) 
B)   transport proteins
C)   G-proteins
D)   desmosomes

Question 2

Your patient has the flu and reports 5-6 loose stools a day. He has experienced an isotonic fluid volume loss. Explain what an isotonic fluid loss means.

Accepted Answer

An isotonic fluid vo...

Question 3

If active transport establishes a concentration gradient with the use of ATP, then the concentration gradient can be looked at as ________.

Accepted Answer

A)   a byproduct of active transport that will be alleviated by pinocytosis
B)   unwanted pressure that will be alleviated by channel mediated facilitated diffusion
C)   potential energy that can be harnessed when molecules passively diffuse down the concentration gradient
D)   an unusable byproduct of active transport that will simply diffuse away

Question 4

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

Question 5

Briefly describe the glycocalyx and its functions.

Accepted Answer

The glycocalyx is the sticky, ...

Question 6

Are random moments of particles, diffusion, and osmosis seen only in living tissue?

Accepted Answer

No. Because they are passive p...

Question 7

If a human cell were to increase the amount of cholesterol embedded within its plasma membrane which of the following would most likely happen?

Accepted Answer

A)   The cell would form a plaque that could potential block a blood vessel.
B)   The plasma membrane would become more stable, less fluid and less permeable.
C)   The plasma membrane would become more permeable to ions and less permeable to lipids.
D)   The plasma membrane would become more fluid and the phospholipids less stable.

Question 8

Microtubules are hollow tubes made of subunits of the protein tubulin.

Accepted Answer

A) True 
 B)False

Question 9

How are peroxisomes different from lysosomes?

Accepted Answer

Peroxisomes contain oxidases that use ox...

Question 10

Aerobic cellular respiration occurs in the ________.

Accepted Answer

The answer of Aerobic cellular respiration occurs in the ________....

Question 11

Explain the term genetic code. What does it code for? What are the letters of the code?

Accepted Answer

The genetic code is the information enco...

Question 12

Which of the following would not be a constituent of a plasma membrane?

Accepted Answer

A)   glycolipids
B)   messenger RNA
C)   phospholipids
D)   glycoproteins

Question 13

The functions of centrioles include ________.

Accepted Answer

A)   serving as the site for ribosomal RNA synthesis
B)   providing a whiplike beating motion to move substances along cell surfaces
C)   producing ATP
D)   organizing the mitotic spindle in cell division

Question 14

At the age of 6 months, Caleb was diagnosed with Tay-Sachs disease. As his primary care physician, what would you tell his parents about this disease?

Accepted Answer

It is an inherited condition where vario...

Question 15

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

Accepted Answer

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

Question 16

Peroxisomes ________.

Accepted Answer

A)   sometimes function as secretory vesicles
B)   are functionally the same as lysosomes
C)   function to digest particles ingested by endocytosis
D)   are able to detoxify substances by enzymatic action

Question 17

Dividing cells must pass through the phases of mitosis the following order: Prophase, Metaphase, Anaphase, and Telophase.

Accepted Answer

A) True 
 B)False

Question 18

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

Accepted Answer

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

Question 19

In certain kinds of muscle cells, calcium ions are stored in ________.

Accepted Answer

A)   the smooth ER
B)   the cytoplasm
C)   both smooth and rough ER
D)   the rough ER

Question 20

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

Accepted Answer

A) True 
 B)False

Exam 3: Cells: the Living Units

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

Correct Answer
verified

The functions of centrioles include ________.

Correct Answer
verified

Correct Answer
verified

Your patient has the flu and reports 5-6 loose stools a day. He has experienced an isotonic fluid volume loss. Explain what an isotonic fluid loss means.

Correct Answer
verified
An isotonic fluid vo...
View Answer

Peroxisomes ________.

Correct Answer
verified

Dividing cells must pass through the phases of mitosis the following order: Prophase, Metaphase, Anaphase, and Telophase.

Correct Answer
verified

How are peroxisomes different from lysosomes?

Correct Answer
verified
Peroxisomes contain oxidases that use ox...
View Answer

In certain kinds of muscle cells, calcium ions are stored in ________.

Correct Answer
verified

If active transport establishes a concentration gradient with the use of ATP, then the concentration gradient can be looked at as ________.

Correct Answer
verified

Briefly describe the glycocalyx and its functions.

Correct Answer
verified
The glycocalyx is the sticky, ...
View Answer

Are random moments of particles, diffusion, and osmosis seen only in living tissue?

Correct Answer
verified
No. Because they are passive p...
View Answer

Aerobic cellular respiration occurs in the ________.

Correct Answer
verified

Microtubules are hollow tubes made of subunits of the protein tubulin.

Correct Answer
verified

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?

Correct Answer
verified

Explain the term genetic code. What does it code for? What are the letters of the code?

Correct Answer
verified
The genetic code is the information enco...
View Answer

At the age of 6 months, Caleb was diagnosed with Tay-Sachs disease. As his primary care physician, what would you tell his parents about this disease?

Correct Answer
verified
It is an inherited condition where vario...
View Answer

Which of the following would not be a constituent of a plasma membrane?

Correct Answer
verified

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

Correct Answer
verified

If a human cell were to increase the amount of cholesterol embedded within its plasma membrane which of the following would most likely happen?

Correct Answer
verified

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

Correct Answer
verified

Exam 3: Cells: the Living Units

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

Correct AnswerverifiedShow Answer

The functions of centrioles include ________.

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Your patient has the flu and reports 5-6 loose stools a day. He has experienced an isotonic fluid volume loss. Explain what an isotonic fluid loss means.

Correct AnswerverifiedAn isotonic fluid vo...View AnswerShow Answer

Peroxisomes ________.

Correct AnswerverifiedShow Answer

Dividing cells must pass through the phases of mitosis the following order: Prophase, Metaphase, Anaphase, and Telophase.

Correct AnswerverifiedShow Answer

How are peroxisomes different from lysosomes?

Correct AnswerverifiedPeroxisomes contain oxidases that use ox...View AnswerShow Answer

In certain kinds of muscle cells, calcium ions are stored in ________.

Correct AnswerverifiedShow Answer

If active transport establishes a concentration gradient with the use of ATP, then the concentration gradient can be looked at as ________.

Correct AnswerverifiedShow Answer

Briefly describe the glycocalyx and its functions.

Correct AnswerverifiedThe glycocalyx is the sticky, ...View AnswerShow Answer

Are random moments of particles, diffusion, and osmosis seen only in living tissue?

Correct AnswerverifiedNo. Because they are passive p...View AnswerShow Answer

Aerobic cellular respiration occurs in the ________.

Correct AnswerverifiedShow Answer

Microtubules are hollow tubes made of subunits of the protein tubulin.

Correct AnswerverifiedShow Answer

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?

Correct AnswerverifiedShow Answer

Explain the term genetic code. What does it code for? What are the letters of the code?

Correct AnswerverifiedThe genetic code is the information enco...View AnswerShow Answer

At the age of 6 months, Caleb was diagnosed with Tay-Sachs disease. As his primary care physician, what would you tell his parents about this disease?

Correct AnswerverifiedIt is an inherited condition where vario...View AnswerShow Answer

Which of the following would not be a constituent of a plasma membrane?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

If a human cell were to increase the amount of cholesterol embedded within its plasma membrane which of the following would most likely happen?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
An isotonic fluid vo...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
Peroxisomes contain oxidases that use ox...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
The glycocalyx is the sticky, ...
View Answer

Correct Answer
verified
No. Because they are passive p...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
The genetic code is the information enco...
View Answer

Correct Answer
verified
It is an inherited condition where vario...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified