Question 1

If you found a piece of animal tissue that did not allow fluid to cross between cells,you would predict that it contained tight junctions.

Accepted Answer

A) True 
 B)False

Question 2

Which of the following organelles would help you differentiate between plant and animal cells?

Accepted Answer

A)   a centriole
B)   a ribosome
C)   a cell membrane
D)   a peroxisome
E)   a chloroplast

Question 3

The scientist given credit for first using the term "cell" to describe the basic unit of life was

Accepted Answer

A)   Mathias Schleiden.
B)   Robert Hooke.
C)   Carl Woese.
D)   Rudolf Virchow.
E)   J. Craig Venter.

Question 4

The cell wall of bacteria

Accepted Answer

A)   helps prevent the cell from bursting.
B)   protects the cell.
C)   gives bacteria distinct shapes.
D)   may contain a capsule.
E)   All answers are correct.

Question 5

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 proteins

Question 6

All eukaryotic cells produce proteins.Proteins that will be secreted from the cell are made by ribosomes attached to the

Accepted Answer

A)   cell wall.
B)   chloroplast.
C)   rough endoplasmic reticulum.
D)   mitochondrion.
E)   Golgi apparatus.

Question 7

Cells typically keep the surface to volume ratio high.If a cell was a cube and you doubled the height,width,and length of the cell,how much would the volume increase?

Accepted Answer

A)   2 times greater
B)   8 times greater
C)   It would stay the same.
D)   9 times greater
E)   4 times greater

Question 8

Which of the following do plants use to transport nutrients between adjacent cells?

Accepted Answer

A)   tight junction
B)   gap junction
C)   plasmodesmata
D)   anchoring junction
E)   cell wall

Question 9

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 microscopes

Question 10

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

Accepted Answer

A) True 
 B)False  False

Question 11

The original three components of the cell theory are that

Accepted Answer

A)   all organisms have DNA, DNA is the fundamental unit of life, and all cells come from preexisting cells.
B)   all organisms are made of one or more cells, the cell is the fundamental unit of life, and all cells come from preexisting cells.
C)   all organisms have DNA, all organisms are made of cells, and all cells produce proteins.
D)   all organisms are made of one or more cells, the cell is the fundamental unit of life, and all cells have a nucleus.
E)   all organisms are made of one or more cells, all cells contain DNA, and all cells come from preexisting cells.

Question 12

Chloroplasts are known for all of the following except being

Accepted Answer

A)   glucose factories.
B)   responsible for respiration.
C)   found in plants.
D)   organelles that carry out photosynthesis.
E)   found in some protists.

Question 13

Why are cells called "the fundamental unit of life"?

Accepted Answer

A)   All known organisms have one or more cells.
B)   Earliest life on Earth is hypothesized to have been single-celled.
C)   Some cells are separate living entities that can survive individually.
D)   Cells are the smallest unit of life that can function independently.
E)   All answers are correct. E

Question 14

Scientists have discovered a few prokaryotic cells do have internal membranes.

Accepted Answer

A) True 
 B)False

Question 15

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 proteins D

Question 16

The phospholipid bilayer of membranes allows lipids and small nonpolar molecules to pass across membranes,but prohibits the passage of ions and polar molecules.This occurs because the phospholipid tails are

Accepted Answer

A)   always saturated.
B)   hydrophilic and hydrophobic.
C)   always unsaturated.
D)   hydrophilic and selectively permeable.
E)   hydrophobic and selectively permeable.

Question 17

Which of the following roles is not performed by the rough endoplasmic reticulum nor the smooth endoplasmic reticulum?

Accepted Answer

A)   protein production
B)   lipid production
C)   detoxification of poisons
D)   DNA production
E)   vesicle formation for transport to the Golgi apparatus

Question 18

Eukaryotic cells are 10-100 times larger than prokaryotic cells.How do eukaryotic cells resolve the surface area to volume limitations that favor smaller cells?

Accepted Answer

A)   They have pumps that move gasses and nutrients through the cell.
B)   Movement of materials is prevented in cells without a cell wall.
C)   Organelles keep reactions compartmentalized and concentrated.
D)   Gasses are taken up by active transport.
E)   None of the biochemical reactions in prokaryotes occur in eukaryotes.

Question 19

The cytoskeleton consists of microtubules,microfilaments,and intermediate filaments.

Accepted Answer

A) True 
 B)False

Question 20

What would be the reason for a scientist engineering a cell for a high surface area-to-volume ratio?

Accepted Answer

A)   To maximize the relative surface area to exchange nutrients, water, and waste.
B)   To maximize the exchange of heat.
C)   To provide more volume to store extra organelles.
D)   To provide more volume to store nutrients.
E)   All of the answer choices are correct.

Exam 3: Cells

If you found a piece of animal tissue that did not allow fluid to cross between cells,you would predict that it contained tight junctions.

Correct AnswerverifiedShow Answer

Which of the following organelles would help you differentiate between plant and animal cells?

Correct AnswerverifiedShow Answer

The scientist given credit for first using the term "cell" to describe the basic unit of life was

Correct AnswerverifiedShow Answer

The cell wall of bacteria

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

All eukaryotic cells produce proteins.Proteins that will be secreted from the cell are made by ribosomes attached to the

Correct AnswerverifiedShow Answer

Cells typically keep the surface to volume ratio high.If a cell was a cube and you doubled the height,width,and length of the cell,how much would the volume increase?

Correct AnswerverifiedShow Answer

Which of the following do plants use to transport nutrients between adjacent 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

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

Correct AnswerverifiedFalse

The original three components of the cell theory are that

Correct AnswerverifiedShow Answer

Chloroplasts are known for all of the following except being

Correct AnswerverifiedShow Answer

Why are cells called "the fundamental unit of life"?

Correct AnswerverifiedE

Scientists have discovered a few prokaryotic cells do have internal membranes.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedD

The phospholipid bilayer of membranes allows lipids and small nonpolar molecules to pass across membranes,but prohibits the passage of ions and polar molecules.This occurs because the phospholipid tails are

Correct AnswerverifiedShow Answer

Which of the following roles is not performed by the rough endoplasmic reticulum nor the smooth endoplasmic reticulum?

Correct AnswerverifiedShow Answer

Eukaryotic cells are 10-100 times larger than prokaryotic cells.How do eukaryotic cells resolve the surface area to volume limitations that favor smaller cells?

Correct AnswerverifiedShow Answer

The cytoskeleton consists of microtubules,microfilaments,and intermediate filaments.

Correct AnswerverifiedShow Answer

What would be the reason for a scientist engineering a cell for a high surface area-to-volume ratio?

Correct AnswerverifiedShow Answer

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False

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E

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D

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