Question 1

Tay-Sachs disease is a neurological disorder in which a defective enzyme prohibits the breakdown of phospholipids called gangliosides.Where would gangliosides accumulate?

Accepted Answer

A)  Cytoplasm
B)  Cell wall
C)  Cytoplasm and cell wall
D)  Membranes
E)  Membranes and cell wallF) D) and E)
G) A) and B) D

Question 2

All living cells have a cell wall.

Accepted Answer

A) True 
 B)False  False

Question 3

Most living cells are small in size because they need a small ratio of surface area to volume.

Accepted Answer

A) True 
 B)False

Question 4

How did scientists detect the location of MreB and Mbl in bacterial cells?

Accepted Answer

A)  With an electron microscope
B)  With a light microscope
C)  With fluorescently tagged actin
D)  With fluorescently tagged antibodies
E)  With fluorescently tagged tubulinF) A) and B)
G) B) and D)

Question 5

Cilia are not:

Accepted Answer

A)  Found on prokaryotic cells
B)  Found on eukaryotic cells
C)  Used for movement
D)  Short appendages
E)  Composed of microtubulesF) A) and D)
G) B) and C)

Question 6

What is the role of actin in eukaryotic cells?

Accepted Answer

A)  It is part of the cytoskeleton
B)  It forms the spindle that pulls chromosomes apart
C)  It forms the centromere that holds sister chromatids together
D)  It is necessary for the DNA to replicate
E)  It is necessary for the nucleosome to form in condensing chromosomesF) C) and D)
G) A) and B)

Question 7

You are working on a forensics team and collect some cells from a crime scene.The cells have a cell wall made up of cellulose.This sample most likely came from:

Accepted Answer

A)  An animal
B)  A bacteria
C)  A plant
D)  A fungi
E)  All could be correctF) C) and D)
G) None of the above

Question 8

The scientist (scientists) 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)  Louis Pasteur
D)  Rudolf Virchow
E)  Antony van LeeuwenhoekF) All of the above
G) A) and B)

Question 9

The reason that mitochondrial DNA in most mammals is inherited from the mother only is because a sperm cell contains no mitochondria.

Accepted Answer

A) True 
 B)False

Question 10

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 moleculesF) C) and D)
G) B) and D)

Question 11

The original three tenets of the cell theory are:

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 cellsF) All of the above
G) D) and E)

Question 12

A micrometer is:

Accepted Answer

A)  0.000001 of a meter
B)  0.1 of a meter
C)  0.01 of a meter
D)  0.001 of a meter
E)  0.00001 of a meterF) B) and E)
G) A) and B)

Question 13

An organelle found in plant cells and some members of the kingdom Protista but not in animal cells is:

Accepted Answer

A)  A centriole
B)  A ribosome
C)  A cell membrane
D)  A lysosome
E)  A chloroplastF) C) and D)
G) A) and D)

Question 14

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

Accepted Answer

A) True 
 B)False

Question 15

The Woese system of classification consists of a taxonomic grouping called the domain.

Accepted Answer

A) True 
 B)False  True

Question 16

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-bounded organelles
D)  Has membrane-bounded organelles
E)  Does not usually have a nucleusF) All of the above
G) A) and B)

Question 17

Most living cells are small in size because they need a large ratio of surface area to volume.

Accepted Answer

A) True 
 B)False

Question 18

The cell wall of bacteria:

Accepted Answer

A)  Helps prevent the cell from bursting
B)  Protects the cell
C)  All are correct
D)  Contains peptidoglycan
E)  Gives the bacterium a distinctive shapeF) C) and E)
G) A) and B)

Question 19

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) B) and C)
G) A) and E)

Question 20

A structure found in prokaryotic cells,plant cells,and animal cells is a:

Accepted Answer

A)  Cell wall
B)  Chloroplast
C)  Ribosome
D)  Mitochondria
E)  CiliumF) B) and C)
G) A) and B)

Exam 3: The Dynamic Cell

Tay-Sachs disease is a neurological disorder in which a defective enzyme prohibits the breakdown of phospholipids called gangliosides.Where would gangliosides accumulate?

Correct AnswerverifiedD

All living cells have a cell wall.

Correct AnswerverifiedFalse

Most living cells are small in size because they need a small ratio of surface area to volume.

Correct AnswerverifiedShow Answer

How did scientists detect the location of MreB and Mbl in bacterial cells?

Correct AnswerverifiedShow Answer

Cilia are not:

Correct AnswerverifiedShow Answer

What is the role of actin in eukaryotic cells?

Correct AnswerverifiedShow Answer

You are working on a forensics team and collect some cells from a crime scene.The cells have a cell wall made up of cellulose.This sample most likely came from:

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

The reason that mitochondrial DNA in most mammals is inherited from the mother only is because a sperm cell contains no mitochondria.

Correct AnswerverifiedShow Answer

A cell membrane is not:

Correct AnswerverifiedShow Answer

The original three tenets of the cell theory are:

Correct AnswerverifiedShow Answer

A micrometer is:

Correct AnswerverifiedShow Answer

An organelle found in plant cells and some members of the kingdom Protista but not in animal cells is:

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

The Woese system of classification consists of a taxonomic grouping called the domain.

Correct AnswerverifiedTrue

A eukaryotic cell:

Correct AnswerverifiedShow Answer

Most living cells are small in size because they need a large ratio of surface area to volume.

Correct AnswerverifiedShow Answer

The cell wall of bacteria:

Correct AnswerverifiedShow Answer

Which of the following are cellular digestion centers?

Correct AnswerverifiedShow Answer

A structure found in prokaryotic cells,plant cells,and animal cells is a:

Correct AnswerverifiedShow Answer

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False

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True

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