Question 1

Which of the following is NOT a function of the smooth endoplasmic reticulum?

Accepted Answer

A)  breakdown of stored glycogen to form free glucose
B)  steroid-based hormone synthesis
C)  protein synthesis in conjunction with ribosomes
D)  lipid metabolism and cholesterol synthesis

Question 2

Your patient has a respiratory disease that has literally paralyzed the cilia.Explain why this patient would be at an increased risk for a respiratory infection.

Accepted Answer

Ciliated cells that live in the respirat...

Question 3

A gene can best be defined as ________.

Accepted Answer

A)  a segment of DNA that carries the instructions for one polypeptide chain
B)  a three-base triplet that specifies a particular amino acid
C)  noncoding segments of DNA up to 100,000 nucleotides long
D)  an RNA messenger that codes for a particular polypeptide

Question 4

If cells are placed in a hypertonic solution containing a solute to which the membrane is impermeable,what could happen?

Accepted Answer

A)  The cells will lose water and shrink.
B)  The cells will show no change due to diffusion of both solute and solvent.
C)  The cells will swell and ultimately burst.
D)  The cells will shrink at first,but will later reach equilibrium with the surrounding solution and return to their original condition.

Question 5

Some hormones enter cells via ________.

Accepted Answer

A)  exocytosis
B)  receptor-mediated endocytosis
C)  primary active transport
D)  pinocytosis

Question 6

Mitosis ________.

Accepted Answer

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

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

A type of transport protein found in the plasma membrane of cells lining the inside of the intestine allows sodium ions to diffuse down their concentration gradient.The ions move through the transport protein,and into the cell.These transport proteins will use the kinetic energy of the diffusing sodium ions to bring glucose into the cells as well.Which of the following would stop transport of glucose through this transport protein?

Accepted Answer

A)  Increasing the number of digestive enzymes in the digestive tract.
B)  Stopping the activity of the sodium potassium pump.
C)  Increasing the concentration of glucose outside of the cell.
D)  Lowering the energy of activation.

Question 9

Aerobic cellular respiration occurs in the ________.

Accepted Answer

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

Question 10

Aquaporins are believed to be present in red blood cells and kidney tubules,but not in any other cells in the body.

Accepted Answer

A) True 
 B)False

Question 11

Follow the pathway that a typical protein,destined for exocytosis will make as it passes from the ribosome,into the rough endoplasmic reticulum.In your answer be sure to describe role that ribosomes play,and the events that take place in the Rough Endoplasmic reticulum.

Accepted Answer

A new polypeptide is translated at the r...

Question 12

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 13

If a cell is non-selectively engulfing samples of extracellular fluid,for example to absorb nutrients,it will likely utilize ________.

Accepted Answer

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

Question 14

List possible causes of aging.

Accepted Answer

1.chemical insults and free radical form...

Question 15

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

Accepted Answer

Normal cells divide in two distinct even...

Question 16

Which transport process is the main mechanism for the movement of most macromolecules by body cells?

Accepted Answer

A)  secondary active transport
B)  receptor-mediated endocytosis
C)  pinocytosis
D)  phagocytosis

Question 17

________ is the division of the cytoplasmic mass into two parts.

Accepted Answer

The answer of ________ is the division of the cytoplasmic...

Question 18

How are peroxisomes different from lysosomes?

Accepted Answer

Peroxisomes contain oxidases that use ox...

Question 19

Mitochondria ________.

Accepted Answer

A)  are single-membrane structures involved in the breakdown of ATP
B)  synthesize proteins for use outside the cell
C)  contain digestive enzymes called acid hydrolyses
D)  contain some of the DNA and RNA code necessary for their own function

Question 20

The main component of the cytosol is ________.

Accepted Answer

A)  sugars
B)  water
C)  proteins
D)  salts

Exam 3: Cells: the Living Units

Follow the pathway that a typical protein,destined for exocytosis will make as it passes from the ribosome,into the rough endoplasmic reticulum.In your answer be sure to describe role that ribosomes play,and the events that take place in the Rough Endoplasmic reticulum.

Correct Answer
verified
A new polypeptide is translated at the r...
View Answer

Mitochondria ________.

Correct Answer
verified

Which transport process is the main mechanism for the movement of most macromolecules by body cells?

Correct Answer
verified

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.

Correct Answer
verified
Hydrostatic pressure is the pressure of ...
View Answer

The main component of the cytosol is ________.

Correct Answer
verified

Some hormones enter cells via ________.

Correct Answer
verified

If a cell is non-selectively engulfing samples of extracellular fluid,for example to absorb nutrients,it will likely utilize ________.

Correct Answer
verified

Aquaporins are believed to be present in red blood cells and kidney tubules,but not in any other cells in the body.

Correct Answer
verified

List possible causes of aging.

Correct Answer
verified
1.chemical insults and free radical form...
View Answer

Your patient has a respiratory disease that has literally paralyzed the cilia.Explain why this patient would be at an increased risk for a respiratory infection.

Correct Answer
verified
Ciliated cells that live in the respirat...
View Answer

A gene can best be defined as ________.

Correct Answer
verified

Which of the following is NOT a function of the smooth endoplasmic reticulum?

Correct Answer
verified

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

Correct Answer
verified
Normal cells divide in two distinct even...
View Answer

Aerobic cellular respiration occurs in the ________.

Correct Answer
verified

Mitosis ________.

Correct Answer
verified

Correct Answer
verified

How are peroxisomes different from lysosomes?

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

________ is the division of the cytoplasmic mass into two parts.

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

If cells are placed in a hypertonic solution containing a solute to which the membrane is impermeable,what could happen?

Correct Answer
verified

Exam 3: Cells: the Living Units

Follow the pathway that a typical protein,destined for exocytosis will make as it passes from the ribosome,into the rough endoplasmic reticulum.In your answer be sure to describe role that ribosomes play,and the events that take place in the Rough Endoplasmic reticulum.

Correct AnswerverifiedA new polypeptide is translated at the r...View AnswerShow Answer

Mitochondria ________.

Correct AnswerverifiedShow Answer

Which transport process is the main mechanism for the movement of most macromolecules by body cells?

Correct AnswerverifiedShow Answer

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.

Correct AnswerverifiedHydrostatic pressure is the pressure of ...View AnswerShow Answer

The main component of the cytosol is ________.

Correct AnswerverifiedShow Answer

Some hormones enter cells via ________.

Correct AnswerverifiedShow Answer

If a cell is non-selectively engulfing samples of extracellular fluid,for example to absorb nutrients,it will likely utilize ________.

Correct AnswerverifiedShow Answer

Aquaporins are believed to be present in red blood cells and kidney tubules,but not in any other cells in the body.

Correct AnswerverifiedShow Answer

List possible causes of aging.

Correct Answerverified1.chemical insults and free radical form...View AnswerShow Answer

Your patient has a respiratory disease that has literally paralyzed the cilia.Explain why this patient would be at an increased risk for a respiratory infection.

Correct AnswerverifiedCiliated cells that live in the respirat...View AnswerShow Answer

A gene can best be defined as ________.

Correct AnswerverifiedShow Answer

Which of the following is NOT a function of the smooth endoplasmic reticulum?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedNormal cells divide in two distinct even...View AnswerShow Answer

Aerobic cellular respiration occurs in the ________.

Correct AnswerverifiedShow Answer

Mitosis ________.

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

How are peroxisomes different from lysosomes?

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

________ is the division of the cytoplasmic mass into two parts.

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

If cells are placed in a hypertonic solution containing a solute to which the membrane is impermeable,what could happen?

Correct AnswerverifiedShow Answer

Correct Answer
verified
A new polypeptide is translated at the r...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
Hydrostatic pressure is the pressure of ...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
1.chemical insults and free radical form...
View Answer

Correct Answer
verified
Ciliated cells that live in the respirat...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
Normal cells divide in two distinct even...
View Answer

Correct Answer
verified

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