Question 1

What is the obvious dark-stained structure within the nucleus that contains ribosomal RNA called?

Accepted Answer

A)   nucleus
B)   nucleolus
C)   nuclear envelope
D)   nucleoplasm
E)   endoplasmic reticulumF) All of the above
G) None of the above

Question 2

The sum of all of the chemical reactions that occur in a cell collectively are called

Accepted Answer

A)   respiration.
B)   anabolism.
C)   photosynthesis.
D)   metabolism.
E)   reaction summary.F) C) and D)
G) A) and E)

Question 3

The nucleus of a cell in your thigh muscle contains the same genes as the nucleus of a cell in your brain.

Accepted Answer

A) True 
 B)False

Question 4

Archaea are considered the evolutionary precursors to eukaryotic cells.

Accepted Answer

A) True 
 B)False

Question 5

What type of microscopy provides a three-dimensional view of the surface of an object?

Accepted Answer

A)   compound light microscope
B)   transmission electron microscope
C)   scanning electron microscope
D)   phase contrast microscope
E)   ultraviolet microscopeF) A) and B)
G) B) and D)

Question 6

Which of the following is not a function of the cytoskeleton?

Accepted Answer

A)   maintain a cell's shape
B)   process proteins
C)   anchor organelles
D)   move organelles
E)   move the entire cellF) B) and E)
G) C) and D)

Question 7

If the mitochondrion is the result of endosymbiosis, what membrane of the mitochondrion represents the engulfing vesicle?

Accepted Answer

A)   the outer mitochondrial membrane
B)   vacuole
C)   cristae
D)   matrix
E)   granaF) A) and B)
G) B) and E)

Question 8

The reason that metabolizing cells are small in size is because

Accepted Answer

A)   cells influence nearby cells to divide.
B)   the surface area of a cell must be able to accomplish nutrient/waste exchange.
C)   cells need to dissipate heat effectively.
D)   mitosis occurs before cells reach a certain size.
E)   cells need to communicate with adjacent cells.F) B) and C)
G) D) and E)

Question 9

A solution is at equilibrium across a plasma membrane. If 50 molecules were to enter the cell, how many molecules would need to exit the cell in order to maintain the equilibrium?

Accepted Answer

A)   50
B)   75
C)   25
D)   0
E)   100F) A) and D)
G) B) and E)

Question 10

A short chain of sugar attached to a protein molecule on the plasma membrane is called

Accepted Answer

A)   a protomembrane.
B)   a protosugar.
C)   a glycocalyx.
D)   a glycolipid.
E)   a glycoprotein.F) C) and E)
G) A) and D)

Question 11

________ are the fundamental units that make up all living things.

Accepted Answer

A)   Compartments
B)   Cells
C)   Chromosomes
D)   Coelom
E)   CristaeF) B) and D)
G) A) and E)

Question 12

What do the SER and RER have in common?

Accepted Answer

A)   the presence of ribosomes
B)   the formation of transport vesicles
C)   the synthesis of phospholipids
D)   the synthesis of proteins
E)   the processing and modification of proteinsF) B) and C)
G) A) and B)

Question 13

Which of the following is not associated with the cytoskeleton?

Accepted Answer

A)   intermediate filaments
B)   microtubules
C)   microbodies
D)   actin filaments
E)   centrosomeF) All of the above
G) B) and C)

Question 14

Which model currently describes the structure of the plasma membrane?

Accepted Answer

A)   endosymbiont model
B)   fluid-mosaic model
C)   plasmagel-plasmasol model
D)   lock and key model
E)   induced-fit modelF) A) and D)
G) None of the above

Question 15

Paleontologists have discovered ancient prokaryotic fossils dated at over 3.5 billion years old. These fossils resemble prokaryotes that are capable of living in extreme conditions such as high temperature and salinity. What domain do these prokaryotes belong to?

Accepted Answer

A)   Protists
B)   Protoctista
C)   Archaea
D)   Archetista
E)   EukaryaF) D) and E)
G) A) and B)

Question 16

The cytoplasm is not considered a cellular organelle.

Accepted Answer

A) True 
 B)False

Question 17

What cellular organelle is especially abundant in phagocytic white blood cells?

Accepted Answer

A)   nuclei
B)   nucleoli
C)   Golgi apparati
D)   lysosomes
E)   ribosomesF) B) and E)
G) A) and D)

Question 18

What is the name of a photograph of a specimen obtained with a microscope?

Accepted Answer

A)   negative
B)   dermatome
C)   thermograph
D)   micrograph
E)   chromatographF) B) and E)
G) C) and D)

Question 19

Which of the following diseases would you expect in someone with malfunctioning cilia?

Accepted Answer

A)   recurrent respiratory infections
B)   heart attack
C)   urinary infections
D)   muscle paralysis
E)   brittle bonesF) C) and D)
G) B) and E)

Question 20

Which of the following protein fibers is used for cellular movement and are extremely thin in size.

Accepted Answer

A)   actin filaments
B)   intermediate filaments
C)   microtubules
D)   centrosome
E)   ciliaF) None of the above
G) C) and E)

Exam 3: Cell Structure and Function

Which of the following diseases would you expect in someone with malfunctioning cilia?

Correct AnswerverifiedShow Answer

________ are the fundamental units that make up all living things.

Correct AnswerverifiedShow Answer

The sum of all of the chemical reactions that occur in a cell collectively are called

Correct AnswerverifiedShow Answer

What type of microscopy provides a three-dimensional view of the surface of an object?

Correct AnswerverifiedShow Answer

Paleontologists have discovered ancient prokaryotic fossils dated at over 3.5 billion years old. These fossils resemble prokaryotes that are capable of living in extreme conditions such as high temperature and salinity. What domain do these prokaryotes belong to?

Correct AnswerverifiedShow Answer

What is the name of a photograph of a specimen obtained with a microscope?

Correct AnswerverifiedShow Answer

A solution is at equilibrium across a plasma membrane. If 50 molecules were to enter the cell, how many molecules would need to exit the cell in order to maintain the equilibrium?

Correct AnswerverifiedShow Answer

What is the obvious dark-stained structure within the nucleus that contains ribosomal RNA called?

Correct AnswerverifiedShow Answer

What do the SER and RER have in common?

Correct AnswerverifiedShow Answer

The reason that metabolizing cells are small in size is because

Correct AnswerverifiedShow Answer

Which of the following protein fibers is used for cellular movement and are extremely thin in size.

Correct AnswerverifiedShow Answer

A short chain of sugar attached to a protein molecule on the plasma membrane is called

Correct AnswerverifiedShow Answer

Which model currently describes the structure of the plasma membrane?

Correct AnswerverifiedShow Answer

Archaea are considered the evolutionary precursors to eukaryotic cells.

Correct AnswerverifiedShow Answer

What cellular organelle is especially abundant in phagocytic white blood cells?

Correct AnswerverifiedShow Answer

Which of the following is not associated with the cytoskeleton?

Correct AnswerverifiedShow Answer

The nucleus of a cell in your thigh muscle contains the same genes as the nucleus of a cell in your brain.

Correct AnswerverifiedShow Answer

If the mitochondrion is the result of endosymbiosis, what membrane of the mitochondrion represents the engulfing vesicle?

Correct AnswerverifiedShow Answer

The cytoplasm is not considered a cellular organelle.

Correct AnswerverifiedShow Answer

Which of the following is not a function of the cytoskeleton?

Correct AnswerverifiedShow Answer

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