Question 1

If you observed a scientist engineering a cell for a high surface area-to-volume ratio,what might you guess to be the reason?

Accepted Answer

A)  Maximizes the relative surface area to exchange nutrients,water,and waste.
B)  Maximizes the relative surface area for cooling.
C)  Provides more volume to store more organelles.
D)  Provides more volume to store more nutrients.
E)  Saves energy by making more membrane relative to the volume of the cell.F) All of the above
G) A) and E)

Question 2

The theory of endosymbiosis is based on

Accepted Answer

A)  the knowledge that ribosomes are structures found in bacteria,plants,and animals.
B)  the experiments in which bacteria were grown in plant cells and formed chloroplasts.
C)  the knowledge that chloroplasts and mitochondria resemble bacteria.
D)  evidence from the fossil recorD.
E)  similarities between chloroplasts and other organelles in animals.F) A) and E)
G) C) and E)

Question 3

If you asked students to describe the Golgi apparatus on an exam,you would deduct points if a student described it as

Accepted Answer

A)  an organelle.
B)  a processing center.
C)  studded with ribosomes.
D)  a stack of membrane enclosed sacs.
E)  involved with secretion of cellular components.F) B) and E)
G) C) and E)

Question 4

Some prokaryotes do have internal membranes,used in detecting gravity.

Accepted Answer

A) True 
 B)False

Question 5

A eukaryotic cell

Accepted Answer

A)  has a cell wall with peptidoglycan.
B)  is usually smaller than a prokaryotic cell.
C)  does not have membrane-bound organelles.
D)  has membrane-bound organelles.
E)  does not usually have a nucleus.F) A) and D)
G) B) and C)

Question 6

What type of membrane protein is involved in passing ions and polar molecules across membranes?

Accepted Answer

A)  transport proteins
B)  enzymes
C)  recognition proteins
D)  adhesion proteins
E)  receptor proteinsF) B) and D)
G) A) and B)

Question 7

What is the advantage of a mature red blood cell having a flattened shape rather than a spherical shape?

Accepted Answer

A)  makes it easier for them to fit through arteries and veins
B)  provides more membrane for the electron transport chains where oxygen is consumed
C)  provides more sites for the membrane-bound hemoglobin molecules which transport oxygen
D)  saves energy by making more membrane relative to the volume of the cell
E)  maximizes the relative surface area to exchange gassesF) A) and E)
G) B) and E)

Question 8

The scientist (scientists) given credit for adding the third tenet (all cells come from preexisting cells) to the cell theory is (are)

Accepted Answer

A)  Robert Hooke.
B)  Mathias Schleiden and Theodore Schwann.
C)  Rudolf Virchow.
D)  Carl Woese.
E)  J.Craig Venter.F) B) and E)
G) A) and E)

Question 9

Which of the following are cellular digestion centers?

Accepted Answer

A)  peroxisomes and ribosomes
B)  lysosomes and peroxisomes
C)  ribosomes and chloroplasts
D)  chloroplasts and ribosomes
E)  lysosomes and Golgi apparatusF) A) and B)
G) B) and C)

Question 10

What type of microscope would you use if you wanted to examine the movement of a freshwater protist?

Accepted Answer

A)  light microscope
B)  transmission electron microscope
C)  scanning electron microscope
D)  light microscope and transmission electron microscope
E)  transmission and scanning electron microscopesF) B) and D)
G) B) and E)

Question 11

How do cells avoid surface area limitations?

Accepted Answer

A)  all of the choices
B)  flattened shape
C)  long and thin shape
D)  transportation system that circulates materials inside the cell
E)  many microscopic extensionsF) B) and E)
G) A) and E)

Question 12

It would be a very great surprise to find endoplasmic reticulum that had a function to

Accepted Answer

A)  produce proteins.
B)  produce lipids.
C)  detoxify poisons.
D)  produce DNA.
E)  form vesicles for transport to the Golgi apparatus.F) B) and E)
G) All of the above

Question 13

Magnetism-detecting bacteria turn with an applied magnetic field.

Accepted Answer

A) True 
 B)False

Question 14

A cell membrane is not

Accepted Answer

A)  a fluid structure.
B)  a rigid structure.
C)  a mosaic structure.
D)  a bilayered structure.
E)  composed of phospholipid molecules.F) D) and E)
G) B) and D)

Question 15

Endosymbiosis is a theory based on the resemblance of chloroplasts and mitochondria to bacteria.

Accepted Answer

A) True 
 B)False

Question 16

A new kind of protist has been discovered that has shocked the world because its cilia are

Accepted Answer

A)  found in the nucleus.
B)  found on eukaryotic cells.
C)  used for movement.
D)  short appendages.
E)  found on the exterior of cells.F) B) and D)
G) C) and E)

Question 17

A cytoskeleton is

Accepted Answer

A)  a structure that aids in the process of cell division.
B)  found in the cytoplasm of eukaryotic cells.
C)  a system of tracks used for transport.
D)  composed of microtubules and microfilaments.
E)  All answers are correct.F) A) and D)
G) B) and D)

Question 18

What type of membrane protein is involved in creating anchoring junctions between animal cells?

Accepted Answer

A)  transport proteins
B)  enzymes
C)  recognition proteins
D)  adhesion proteins
E)  receptor proteinsF) C) and D)
G) B) and D)

Question 19

The scientist(s) given credit for first using the term "cell" to describe the basic unit of life is (are)

Accepted Answer

A)  Mathias Schleiden and Theodore Schwann.
B)  Robert Hooke.
C)  Carl Woese.
D)  Rudolf Virchow.
E)  J.Craig Venter.F) All of the above
G) A) and D)

Question 20

If you were examining a plasmodesmatum under a microscope,you would expect to find a plant cell at each end.

Accepted Answer

A) True 
 B)False

Exam 3: Cells

The theory of endosymbiosis is based on

Correct AnswerverifiedShow Answer

If you observed a scientist engineering a cell for a high surface area-to-volume ratio,what might you guess to be the reason?

Correct AnswerverifiedShow Answer

How do cells avoid surface area limitations?

Correct AnswerverifiedShow Answer

The scientist(s) given credit for first using the term "cell" to describe the basic unit of life is (are)

Correct AnswerverifiedShow Answer

Magnetism-detecting bacteria turn with an applied magnetic field.

Correct AnswerverifiedShow Answer

What is the advantage of a mature red blood cell having a flattened shape rather than a spherical shape?

Correct AnswerverifiedShow Answer

Endosymbiosis is a theory based on the resemblance of chloroplasts and mitochondria to bacteria.

Correct AnswerverifiedShow Answer

What type of membrane protein is involved in creating anchoring junctions between animal cells?

Correct AnswerverifiedShow Answer

What type of microscope would you use if you wanted to examine the movement of a freshwater protist?

Correct AnswerverifiedShow Answer

What type of membrane protein is involved in passing ions and polar molecules across membranes?

Correct AnswerverifiedShow Answer

If you were examining a plasmodesmatum under a microscope,you would expect to find a plant cell at each end.

Correct AnswerverifiedShow Answer

A eukaryotic cell

Correct AnswerverifiedShow Answer

A cytoskeleton is

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If you asked students to describe the Golgi apparatus on an exam,you would deduct points if a student described it as

Correct AnswerverifiedShow Answer

The scientist (scientists) given credit for adding the third tenet (all cells come from preexisting cells) to the cell theory is (are)

Correct AnswerverifiedShow Answer

It would be a very great surprise to find endoplasmic reticulum that had a function to

Correct AnswerverifiedShow Answer

A new kind of protist has been discovered that has shocked the world because its cilia are

Correct AnswerverifiedShow Answer

Which of the following are cellular digestion centers?

Correct AnswerverifiedShow Answer

Some prokaryotes do have internal membranes,used in detecting gravity.

Correct AnswerverifiedShow Answer

A cell membrane is not

Correct AnswerverifiedShow Answer

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