Question 1

Because bacteria are prokaryotes,they do not have DNA.

Accepted Answer

A) True 
 B)False

Question 2

Explain what occurs during endocytosis.

Accepted Answer

During endocytosis a portion of the plas...

Question 3

Which of the following does not utilize active transport?

Accepted Answer

A)  movement of oxygen from the lungs into the blood
B)  concentrating iodine ions in the thyroid gland
C)  absorbing sugar in the gut
D)  water homeostasis in the kidneys
E)  movement of sodium and potassium in nerve cellsF) B) and E)
G) A) and D)

Question 4

Since all organisms carry on cellular respiration,all living cells must contain mitochondria.

Accepted Answer

A) True 
 B)False

Question 5

The first day of football practice was rough on the squad.During practice the players complained of cramps and sore muscles.The reason for their complaints was that there was a __________________ build up in their muscles.

Accepted Answer

A)  glucose
B)  alcohol
C)  carbon dioxide
D)  carbon monoxide
E)  lactateF) C) and D)
G) A) and B)

Question 6

Sheree observed an amoeba feeding by engulfing the prey with its false feet or pseudopods.This process is known as

Accepted Answer

A)  pinocytosis.
B)  phagocytosis.
C)  exocytosis.
D)  facilitated transport.
E)  osmosis.F) A) and B)
G) B) and E)

Question 7

The phospholipid bilayer that surrounds/maintains the integrity of a cell is called a

Accepted Answer

A)  plasma membrane.
B)  Sanger enclosure.
C)  hydrophobic membrane.
D)  dialysis membrane.
E)  mosaic membranE.F) None of the above
G) B) and E)

Question 8

The gel-like fluid substance within a mitochondrion is called the

Accepted Answer

A)  matrix.
B)  cristae.
C)  rugae.
D)  effluvium.
E)  villi.F) A) and B)
G) A) and C)

Question 9

Often when a person is admitted to the hospital,an intravenous solution of normal saline is begun.Since this does not harm the patient,what is the tonicity of normal saline compared to your blood?

Accepted Answer

A)  hypertonic
B)  isotonic
C)  hypotonic
D)  pretonic
E)  osmotonicF) B) and D)
G) C) and D)

Question 10

Choose the CORRECT statement about solute concentrations or particles inside and outside the cell.

Accepted Answer

A)  In a hypertonic solution,there are more particles inside the cell.
B)  In a hypotonic solution,there are more particles outside the cell.
C)  In an isotonic solution the amount of water inside and outside the cell is equal.
D)  In a hypertonic solution,there is more water outside the cell.
E)  In a hypotonic solution,there is more water inside the cell.F) D) and E)
G) A) and E)

Question 11

If a cell has a volume of 3nm,what are the surface area and the volume of the cell?

Accepted Answer

A)  24nm2,8nm3
B)  38nm2,16nm3
C)  54nm2,27nm3
D)  64nm2,24nm3
E)  18nm2,6nm3F) All of the above
G) A) and D)

Question 12

Which of the following protein fibers is used for cellular movement and are extremely thin in size?

Accepted Answer

A)  actin filaments
B)  intermediate filaments
C)  microtubules
D)  centrosome
E)  ciliaF) A) and B)
G) C) and D)

Question 13

________ are the fundamental units that make up all living things.

Accepted Answer

A)  Compartments
B)  Cells
C)  Chromosomes
D)  Coelom
E)  CristaeF) C) and D)
G) B) and E)

Question 14

A short chain of sugar attached to a protein molecule on the plasma membrane is called

Accepted Answer

A)  a protomembrane.
B)  a protosugar.
C)  a glycocalyx.
D)  a glycolipiD.
E)  a glycoprotein.F) C) and D)
G) A) and B)

Question 15

The nucleus of a cell in your thigh muscle contains the same genes as the nucleus of a cell in your brain.

Accepted Answer

A) True 
 B)False

Question 16

Cilia are composed of microtubules while flagella are composed of actin filaments.

Accepted Answer

A) True 
 B)False

Question 17

In an experiment in the laboratory,a small colored molecule is injected into one cell.Within minutes,the molecule has entered the adjacent cells.What type of junctions connect these cells?

Accepted Answer

A)  gap junctions
B)  free junctions
C)  adhesion junctions
D)  tight junctions
E)  actin junctionsF) C) and D)
G) D) and E)

Question 18

Which of the following is not associated with the cytoskeleton?

Accepted Answer

A)  intermediate filaments
B)  microtubules
C)  microbodies
D)  actin filaments
E)  centrosomeF) C) and E)
G) B) and D)

Question 19

The grainy-looking substance inside the nucleus is composed of

Accepted Answer

A)  phospholipids.
B)  DNA and proteins.
C)  nucleoplasm.
D)  ribosomes.
E)  mitochondria.F) A) and C)
G) A) and B)

Question 20

Viruses are not made up of cells.According to cell theory,this means what?

Accepted Answer

A)  Viruses can cause disease.
B)  Cells come only from pre-existing cells.
C)  Cells can be infected by viruses.
D)  Viruses are not living.
E)  Cells and viruses are the same thing.F) A) and B)
G) B) and E)

Exam 3: Cell Structure and Function

Cilia are composed of microtubules while flagella are composed of actin filaments.

Correct AnswerverifiedShow Answer

Which of the following does not utilize active transport?

Correct AnswerverifiedShow Answer

Which of the following is not associated with the cytoskeleton?

Correct AnswerverifiedShow Answer

Often when a person is admitted to the hospital,an intravenous solution of normal saline is begun.Since this does not harm the patient,what is the tonicity of normal saline compared to your blood?

Correct AnswerverifiedShow Answer

The nucleus of a cell in your thigh muscle contains the same genes as the nucleus of a cell in your brain.

Correct AnswerverifiedShow Answer

Because bacteria are prokaryotes,they do not have DNA.

Correct AnswerverifiedShow Answer

Which of the following protein fibers is used for cellular movement and are extremely thin in size?

Correct AnswerverifiedShow Answer

Sheree observed an amoeba feeding by engulfing the prey with its false feet or pseudopods.This process is known as

Correct AnswerverifiedShow Answer

Viruses are not made up of cells.According to cell theory,this means what?

Correct AnswerverifiedShow Answer

Choose the CORRECT statement about solute concentrations or particles inside and outside the cell.

Correct AnswerverifiedShow Answer

________ are the fundamental units that make up all living things.

Correct AnswerverifiedShow Answer

Since all organisms carry on cellular respiration,all living cells must contain mitochondria.

Correct AnswerverifiedShow Answer

In an experiment in the laboratory,a small colored molecule is injected into one cell.Within minutes,the molecule has entered the adjacent cells.What type of junctions connect these cells?

Correct AnswerverifiedShow Answer

The phospholipid bilayer that surrounds/maintains the integrity of a cell is called a

Correct AnswerverifiedShow Answer

The first day of football practice was rough on the squad.During practice the players complained of cramps and sore muscles.The reason for their complaints was that there was a __________________ build up in their muscles.

Correct AnswerverifiedShow Answer

The grainy-looking substance inside the nucleus is composed of

Correct AnswerverifiedShow Answer

The gel-like fluid substance within a mitochondrion is called the

Correct AnswerverifiedShow Answer

A short chain of sugar attached to a protein molecule on the plasma membrane is called

Correct AnswerverifiedShow Answer

If a cell has a volume of 3nm,what are the surface area and the volume of the cell?

Correct AnswerverifiedShow Answer

Explain what occurs during endocytosis.

Correct AnswerverifiedDuring endocytosis a portion of the plas...View AnswerShow Answer

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During endocytosis a portion of the plas...
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