Question 1

Hutchinson-Gilford Progeria Syndrome is a very rare disease that is caused by several different mutations in the lamin A gene.If you were to culture cells from patients who have Progeria,what effect might you expect to see over time?

Accepted Answer

A)  a decrease in phagocytosis
B)  a decrease in membrane fluidity
C)  the nucleus would become misshapen
D)  the cells would burst

Question 2

Bacteria are generally

Accepted Answer

A)  1 to 2 centimeters thick.
B)  1 to 2 millimeters thick.
C)  1 to 2 micrometers thick.
D)  1 to 2 nanometers thick.
E)  1 to 2 meters thick.

Question 3

Sulfolobus are archaea that are commonly found in geothermal environments,with an optimum growth temperature of about 80 ∘\circ∘ C.Which of the following features allows archaea to thrive at such temperatures?

Accepted Answer

A)  Archaea use the heat from their environment to produce ATP.
B)  Archaea are highly adaptable to changing environmental temperatures.
C)  Archaeal membranes contain special lipids.
D)  Archaea have two cell walls which helps prevent heat absorption.

Question 4

The organelle involved in the oxygen-requiring process by which the energy in macromolecules is stored in ATP is the

Accepted Answer

A)  nucleus.
B)  lysosome.
C)  ER.
D)  mitochondria.
E)  chloroplasts.

Question 5

Microfilaments such as actin,microtubules,and the intermediate filaments form the cell-supporting structure called the ______________.

Accepted Answer

A)  cytoplasm
B)  plasma membrane
C)  cytoskeleton
D)  nucleus

Question 6

The proteins of the plasma membrane are in large part responsible for the cell's ability to interact with its environment.They act as or are involved in all of the following except

Accepted Answer

A)  channel.
B)  recognition.
C)  reception.
D)  transport.
E)  packaging DNA.

Question 7

The genetic material of which kind of cells is included in a single,circular molecule of DNA devoid of any histone proteins?

Accepted Answer

A)  bacteria
B)  protozoa
C)  insects
D)  flowering plants
E)  yeasts

Question 8

Ribosomes are

Accepted Answer

A)  only DNA molecules.
B)  only RNA molecules.
C)  single,naked,and circular chromosomes.
D)  only protein molecules.
E)  large molecular aggregates of protein and RNA.

Question 9

Which of the following associations is unlike the others?

Accepted Answer

A)  histone-nucleosome
B)  crista-mitochondria
C)  grana-chloroplast
D)  lysosome-peroxisome

Question 10

A cell biologist treats a cell so that oxygen cannot diffuse across the membrane.Which organelle will be directly affected?

Accepted Answer

A)  mitochondria
B)  lysosome
C)  nucleus
D)  ribosome
E)  Golgi apparatus

Question 11

The eukaryotic organelle that is directly involved in the transport of proteins synthesized on the surface of the rough ER is called

Accepted Answer

A)  mitochondriA.
B)  vacuole.
C)  cytoskeleton.
D)  Golgi complex.
E)  nucleus.

Question 12

Gram staining is a common method of distinguishing bacteria.It takes advantage of the thickness of the peptidoglycan layer in the cell wall.What type of bacteria appear red after staining with a secondary dye?

Accepted Answer

A)  Gram negative
B)  Gram positive
C)  Gram neutral
D)  Gram prokaryotic

Exam 4: Cell Structure

Which of the following associations is unlike the others?

Correct Answer
verified

A cell biologist treats a cell so that oxygen cannot diffuse across the membrane.Which organelle will be directly affected?

Correct Answer
verified

The organelle involved in the oxygen-requiring process by which the energy in macromolecules is stored in ATP is the

Correct Answer
verified

Hutchinson-Gilford Progeria Syndrome is a very rare disease that is caused by several different mutations in the lamin A gene.If you were to culture cells from patients who have Progeria,what effect might you expect to see over time?

Correct Answer
verified

Bacteria are generally

Correct Answer
verified

Ribosomes are

Correct Answer
verified

The genetic material of which kind of cells is included in a single,circular molecule of DNA devoid of any histone proteins?

Correct Answer
verified

The eukaryotic organelle that is directly involved in the transport of proteins synthesized on the surface of the rough ER is called

Correct Answer
verified

Gram staining is a common method of distinguishing bacteria.It takes advantage of the thickness of the peptidoglycan layer in the cell wall.What type of bacteria appear red after staining with a secondary dye?

Correct Answer
verified

Microfilaments such as actin,microtubules,and the intermediate filaments form the cell-supporting structure called the ______________.

Correct Answer
verified

Sulfolobus are archaea that are commonly found in geothermal environments,with an optimum growth temperature of about 80^$\circ$C.Which of the following features allows archaea to thrive at such temperatures?

Correct Answer
verified

The proteins of the plasma membrane are in large part responsible for the cell's ability to interact with its environment.They act as or are involved in all of the following except

Correct Answer
verified

Exam 4: Cell Structure

Which of the following associations is unlike the others?

Correct AnswerverifiedShow Answer

A cell biologist treats a cell so that oxygen cannot diffuse across the membrane.Which organelle will be directly affected?

Correct AnswerverifiedShow Answer

The organelle involved in the oxygen-requiring process by which the energy in macromolecules is stored in ATP is the

Correct AnswerverifiedShow Answer

Hutchinson-Gilford Progeria Syndrome is a very rare disease that is caused by several different mutations in the lamin A gene.If you were to culture cells from patients who have Progeria,what effect might you expect to see over time?

Correct AnswerverifiedShow Answer

Bacteria are generally

Correct AnswerverifiedShow Answer

Ribosomes are

Correct AnswerverifiedShow Answer

The genetic material of which kind of cells is included in a single,circular molecule of DNA devoid of any histone proteins?

Correct AnswerverifiedShow Answer

The eukaryotic organelle that is directly involved in the transport of proteins synthesized on the surface of the rough ER is called

Correct AnswerverifiedShow Answer

Gram staining is a common method of distinguishing bacteria.It takes advantage of the thickness of the peptidoglycan layer in the cell wall.What type of bacteria appear red after staining with a secondary dye?

Correct AnswerverifiedShow Answer

Microfilaments such as actin,microtubules,and the intermediate filaments form the cell-supporting structure called the ______________.

Correct AnswerverifiedShow Answer

Sulfolobus are archaea that are commonly found in geothermal environments,with an optimum growth temperature of about 80 ∘\circ∘ C.Which of the following features allows archaea to thrive at such temperatures?

Correct AnswerverifiedShow Answer

The proteins of the plasma membrane are in large part responsible for the cell's ability to interact with its environment.They act as or are involved in all of the following except

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

Sulfolobus are archaea that are commonly found in geothermal environments,with an optimum growth temperature of about 80^$\circ$C.Which of the following features allows archaea to thrive at such temperatures?

Correct Answer
verified

Correct Answer
verified