Question 1

What type of membrane proteins are integral proteins that move ions or molecules across plasma membrane?

Accepted Answer

A)   carrier proteins
B)   receptor proteins
C)   enzymes
D)   marker molecules
E)   channel proteinF) C) and D)
G) B) and C)

Question 2

Which of the following could be used to study general features of cells?

Accepted Answer

A)   binoculars
B)   scanning electron microscope
C)   transmission electron microscope
D)   light microscope
E)   a magnifying glassF) B) and E)
G) All of the above

Question 3

What organelle packages materials for secretion from the cell?

Accepted Answer

A)   endoplasmic reticulum
B)   flagellum
C)   peroxisomes
D)   Golgi apparatus
E)   nucleolusF) None of the above
G) All of the above

Question 4

The shaft of a flagellum contains _____________ microtubule doublets around its periphery.

Accepted Answer

A)   9
B)   2 + 9
C)   2+7
D)   7
E)   2F) A) and E)
G) None of the above

Question 5

Which of the following would increase the rate of mediated transport?

Accepted Answer

A)   change the shape of the binding site on the carrier molecule
B)   increase the number of competitive molecules
C)   remove the binding site on the carrier molecule
D)   fill all binding sites on carrier molecules
E)   increase the number of available carrier moleculesF) C) and D)
G) A) and E)

Question 6

Which of the following is NOT posttranslational processing?

Accepted Answer

A)   conversion of a pro-protein to a functional protein
B)   conversion of a pro-enzyme to a functional enzyme
C)   joining 2 or more amino acid chains
D)   adding polysaccharide side chains to proteins
E)   removal of introns from pre-mRNAF) A) and B)
G) D) and E)

Question 7

Mitosis forms

Accepted Answer

A)   one daughter cell and another incomplete cell.
B)   daughter cells called gametes.
C)   two daughter cells with twice the amount of DNA as the mother cell.
D)   two daughter cells with the same amount of DNA as the mother cell.
E)   two daughter cells with half the DNA of the mother cell.F) A) and B)
G) B) and D)

Question 8

Which of the following pairs of terms is mismatched?

Accepted Answer

A)   lysosomes - hydrolytic enzymes
B)   mitochondria - cristae
C)   Golgi apparatus - cisternae
D)   cilia - basal bodies
E)   smooth endoplasmic reticulum - chromatinF) None of the above
G) A) and E)

Question 9

-Red blood cells (RBCs)  have been placed in three different solutions: hypotonic, hypertonic, isotonic. What is solution "A" relative to the RBC?

Accepted Answer

A)   crenated
B)   hypotonic solution
C)   isotonic solution
D)   hypertonic solution
E)   hemolyzedF) B) and C)
G) C) and D)

Question 10

Internal structures of a cell that carry out specialized metabolic tasks are called _____.

Accepted Answer

A)   cytoskeletal elements
B)   enzymes
C)   ribosomes
D)   organellesE) C) and D)
F) None of the above

Question 11

The intracellular digestive organelle of a cell is the

Accepted Answer

A)   lipochrome.
B)   smooth endoplasmic reticulum.
C)   lysosome.
D)   rough endoplasmic reticulum.
E)   microtubule.F) A) and B)
G) A) and E)

Question 12

The process by which there is programmed cellular death is _____.

Accepted Answer

A)   apoptosis
B)   differentiation
C)   mitosis
D)   cleavageE) None of the above
F) A) and B)

Question 13

-What structure does "B" represent on the diagram of the plasma membrane?

Accepted Answer

A)   internal membrane surface
B)   membrane channel protein
C)   phospholipid bilayer
D)   peripheral protein
E)   integral proteinF) C) and D)
G) A) and B)

Question 14

White blood cells engulf foreign particles by means of

Accepted Answer

A)   macrocytosis.
B)   phagocytosis.
C)   exocytosis.
D)   pinocytosis.
E)   prestocytosis.F) A) and E)
G) C) and D)

Question 15

All triplets required to code for synthesis of a protein are a

Accepted Answer

A)   gene.
B)   codon.
C)   proenzyme.
D)   pre-mRNA.
E)   ribosomal RNA (rRN
A)  .F) C) and D)
G) A) and B)

Question 16

Which of the following structures is found in the nucleus?

Accepted Answer

A)   chromosome
B)   flattened membrane sacs
C)   cisternae
D)   cristae
E)   cytosolF) None of the above
G) B) and E)

Question 17

The nucleic acid that is synthesized in the nucleus from a DNA template is

Accepted Answer

A)   tRNA.
B)   mRNA.
C)   rRNA.
D)   All of these are correct.E) All of the above
F) A) and B)

Question 18

The second most abundant of the lipids in the plasma membrane is/are

Accepted Answer

A)   glycolipids.
B)   triglycerides.
C)   phospholipids.
D)   saturated fats.
E)   cholesterol.F) C) and E)
G) A) and B)

Question 19

-The cell is the basic unit of life. All cellular structures exhibit special functions. Match the structure with its function. What is the function of "C"?

Accepted Answer

A)   contains digestive enzymes
B)   directs cellular activities, contains DNA
C)   outer boundary of cell, controls entry and exit of substances
D)   major site of ATP synthesis when oxygen is available
E)   site of protein synthesisF) C) and D)
G) A) and B)

Question 20

Cilia and flagella are distinguished from each other on the basis of

Accepted Answer

A)   width and numbers.
B)   length and numbers.
C)   depth and numbers.
D)   length and width.
E)   None of these choices is correct.F) A) and D)
G) A) and C)

Exam 3: Cell Biology

Cilia and flagella are distinguished from each other on the basis of

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White blood cells engulf foreign particles by means of

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Which of the following structures is found in the nucleus?

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Which of the following pairs of terms is mismatched?

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Mitosis forms

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The nucleic acid that is synthesized in the nucleus from a DNA template is

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-The cell is the basic unit of life. All cellular structures exhibit special functions. Match the structure with its function. What is the function of "C"?

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Which of the following could be used to study general features of cells?

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-What structure does "B" represent on the diagram of the plasma membrane?

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What organelle packages materials for secretion from the cell?

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The second most abundant of the lipids in the plasma membrane is/are

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The intracellular digestive organelle of a cell is the

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Which of the following would increase the rate of mediated transport?

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The process by which there is programmed cellular death is _____.

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Internal structures of a cell that carry out specialized metabolic tasks are called _____.

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Which of the following is NOT posttranslational processing?

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-Red blood cells (RBCs) have been placed in three different solutions: hypotonic, hypertonic, isotonic. What is solution "A" relative to the RBC?

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The shaft of a flagellum contains _____________ microtubule doublets around its periphery.

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What type of membrane proteins are integral proteins that move ions or molecules across plasma membrane?

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All triplets required to code for synthesis of a protein are a

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