Question 1

Members of Archaea are often referred to as extremeophils because they live in conditions of extreme:

Accepted Answer

A)  Temperature
B)  Salinity
C)  Heat
D)  All are correctE) A) and B)
F) A) and C)

Question 2

The main organelles and structures involved with milk production and secretion in their correct sequence are:

Accepted Answer

A)  Nucleus, nuclear pore, rough ER, smooth ER, transport vesicle, Golgi body, vesicle for secretion
B)  Nucleus, smooth ER, rough ER, nuclear pore, transport vesicle, Golgi body, vesicle for secretion
C)  Nucleus, transport vesicle, rough ER, smooth ER, Golgi body, vesicle for secretion
D)  Nucleus, nuclear pore, Golgi body, rough ER, transport vesicle, smooth ER, vesicle for secretion
E)  None of these are correctF) C) and D)
G) A) and E)

Question 3

The most prominent organelle in most eukaryotic cells is the:

Accepted Answer

A)  Endoplasmic reticulum
B)  Nucleus
C)  Ribosome
D)  Nucleolus
E)  Cell membraneF) B) and E)
G) B) and D)

Question 4

The scientist (scientists) given credit for making the first record of microorganisms from observations with his (their) microscopes is (are) :

Accepted Answer

A)  Robert Hooke
B)  Mathias Schleiden and Theodore Schwann
C)  Antony van Leeuwenhoek
D)  Louis Pasteur
E)  Rudolf VirchowF) C) and D)
G) A) and E)

Question 5

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

Accepted Answer

A)  Tight junction
B)  Gap junction
C)  Plasmodesmata
D)  Anchoring junction
E)  Cell wallF) B) and C)
G) None of the above

Question 6

What did the scientists conclude from the experiments on MreB and Mbl?

Accepted Answer

A)  That these genes have arisen multiple times over millions of years
B)  That these genes arose independently in prokaryotes
C)  That these genes are not similar to eukaryotic actin
D)  That these genes are identical to eukaryotic tubulin
E)  That these genes arose before prokaryotes and eukaryotes divergedF) A) and D)
G) A) and B)

Question 7

In order for a milk protein to be secreted,its mRNA must first be translated on ribosomes:

Accepted Answer

A)  In the cytoplasm
B)  In the nucleus
C)  Attached to the Golgi
D)  Attached to the rough endoplasmic reticulum
E)  Attached to the smooth endoplasmic reticulumF) B) and D)
G) A) and E)

Question 8

Viruses should not be considered living organisms because they do not consist of one or more cells.

Accepted Answer

A) True 
 B)False

Question 9

When MreB and Mbl genes were inactivated in Bacillus subtilis the cells turned from rods to spheres.This indicates that MreB and Mbl normally have which function?

Accepted Answer

A)  Maintaining a round shape in bacteria
B)  Allowing bacteria to move
C)  Allowing cell division in bacteria
D)  Maintaining homeostasis in bacteria
E)  Maintaining a rod shape in bacteriaF) A) and C)
G) A) and D)

Question 10

Cancerous cells:

Accepted Answer

A)  Divide uncontrolled
B)  Squeeze into spaces where normal cells cannot
C)  Create their blood supply
D)  Secrete biochemicals that blast pathways through healthy tissues
E)  All are correctF) A) and D)
G) A) and C)

Question 11

Tay-Sachs disease is a neurological disorder in which a defective enzyme prohibits the breakdown of phospholipids called gangliosides.Enzymes that breakdown molecules in a cell are typically found in which organelle?

Accepted Answer

A)  Cytoplasm
B)  Lysosomes
C)  Endoplasmic reticulum
D)  Golgi
E)  MitochondriaF) A) and C)
G) C) and E)

Question 12

How do vesicles carrying proteins destined for secretion move to the plasma membrane?

Accepted Answer

A)  By diffusion
B)  Along actin
C)  They swim with flagella
D)  Along microtubules
E)  They swim with ciliaF) C) and D)
G) A) and B)

Question 13

A junction that is a protein channel linking the cytoplasms of adjacent cells is called:

Accepted Answer

A)  A tight junction
B)  A gap junction
C)  An adhering junction
D)  An anchoring junction
E)  A micro tubular junctionF) A) and D)
G) B) and E)

Question 14

Eukaryotic cells are 10-100 times the size of 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)  Diffusion does not work 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 eukaryotesF) A) and E)
G) A) and B)

Question 15

The scientist (scientists) given credit for formulating the "cell theory" is (are) :

Accepted Answer

A)  Robert Hooke
B)  Louis Pasteur
C)  Rudolf Virchow
D)  Mathias Schleiden and Theodore Schwann
E)  Antony van LeeuwenhoekF) A) and D)
G) A) and E)

Question 16

Unlike most organelles,chloroplasts and mitochondria contain:

Accepted Answer

A)  Membranes
B)  Ribosomes and DNA
C)  Ribosomes
D)  DNA
E)  Membranes and ribosomesF) None of the above
G) A) and E)

Question 17

What is the selective advantage of a mature red blood cell being flat rather than a sphere?

Accepted Answer

A)  Their surface area to volume will decrease, making 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)  Maximize the relative surface area to exchange gassesF) B) and E)
G) C) and D)

Question 18

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)  Louis Pasteur
E)  Antony van LeeuwenhoekF) A) and B)
G) B) and D)

Question 19

The primary structural component of a cell membrane is:

Accepted Answer

A)  A cholesterol molecule
B)  A protein molecule
C)  A phospholipid molecule
D)  An enzyme
E)  A sugar molecule attached to a proteinF) None of the above
G) A) and D)

Exam 3: The Dynamic Cell

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

Correct Answer
verified

The primary structural component of a cell membrane is:

Correct Answer
verified

When MreB and Mbl genes were inactivated in Bacillus subtilis the cells turned from rods to spheres.This indicates that MreB and Mbl normally have which function?

Correct Answer
verified

Unlike most organelles,chloroplasts and mitochondria contain:

Correct Answer
verified

The main organelles and structures involved with milk production and secretion in their correct sequence are:

Correct Answer
verified

What is the selective advantage of a mature red blood cell being flat rather than a sphere?

Correct Answer
verified

Tay-Sachs disease is a neurological disorder in which a defective enzyme prohibits the breakdown of phospholipids called gangliosides.Enzymes that breakdown molecules in a cell are typically found in which organelle?

Correct Answer
verified

Viruses should not be considered living organisms because they do not consist of one or more cells.

Correct Answer
verified

The scientist (scientists) given credit for formulating the "cell theory" is (are) :

Correct Answer
verified

How do vesicles carrying proteins destined for secretion move to the plasma membrane?

Correct Answer
verified

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

Correct Answer
verified

Members of Archaea are often referred to as extremeophils because they live in conditions of extreme:

Correct Answer
verified

Cancerous cells:

Correct Answer
verified

What did the scientists conclude from the experiments on MreB and Mbl?

Correct Answer
verified

The scientist (scientists) given credit for making the first record of microorganisms from observations with his (their) microscopes is (are) :

Correct Answer
verified

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

Correct Answer
verified

In order for a milk protein to be secreted,its mRNA must first be translated on ribosomes:

Correct Answer
verified

The most prominent organelle in most eukaryotic cells is the:

Correct Answer
verified

A junction that is a protein channel linking the cytoplasms of adjacent cells is called:

Correct Answer
verified

Exam 3: The Dynamic Cell

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

Correct AnswerverifiedShow Answer

The primary structural component of a cell membrane is:

Correct AnswerverifiedShow Answer

When MreB and Mbl genes were inactivated in Bacillus subtilis the cells turned from rods to spheres.This indicates that MreB and Mbl normally have which function?

Correct AnswerverifiedShow Answer

Unlike most organelles,chloroplasts and mitochondria contain:

Correct AnswerverifiedShow Answer

The main organelles and structures involved with milk production and secretion in their correct sequence are:

Correct AnswerverifiedShow Answer

What is the selective advantage of a mature red blood cell being flat rather than a sphere?

Correct AnswerverifiedShow Answer

Tay-Sachs disease is a neurological disorder in which a defective enzyme prohibits the breakdown of phospholipids called gangliosides.Enzymes that breakdown molecules in a cell are typically found in which organelle?

Correct AnswerverifiedShow Answer

Viruses should not be considered living organisms because they do not consist of one or more cells.

Correct AnswerverifiedShow Answer

The scientist (scientists) given credit for formulating the "cell theory" is (are) :

Correct AnswerverifiedShow Answer

How do vesicles carrying proteins destined for secretion move to the plasma membrane?

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

Members of Archaea are often referred to as extremeophils because they live in conditions of extreme:

Correct AnswerverifiedShow Answer

Cancerous cells:

Correct AnswerverifiedShow Answer

What did the scientists conclude from the experiments on MreB and Mbl?

Correct AnswerverifiedShow Answer

The scientist (scientists) given credit for making the first record of microorganisms from observations with his (their) microscopes is (are) :

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

In order for a milk protein to be secreted,its mRNA must first be translated on ribosomes:

Correct AnswerverifiedShow Answer

The most prominent organelle in most eukaryotic cells is the:

Correct AnswerverifiedShow Answer

A junction that is a protein channel linking the cytoplasms of adjacent cells is called:

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified