Question 1

Which of thfollowing arsometimes referreto as rough or smooth, depending on thstructure?

Accepted Answer

A)  Golgi bodies
B)  mitochondria
C)  lysosomes
D)  ribosomes
E)  endoplasmic reticulumF) B) and E)
G) None of the above

Question 2

A water-solublhormon(signaling molecule)  woulmost likely binto which of thfollowing membranproteins?

Accepted Answer

A)  active transporter
B)  recognition
C)  receptor
D)  passive transporter
E)  regulatorF) B) and C)
G) B) and E)

Question 3

Thhighest magnification generally useto study thinternal structurof cells is provideby

Accepted Answer

A)  the scanning electron microscope.
B)  the transmission electron microscope.
C)  the light microscope.
D)  the magnifying glass.
E)  none of these.F) None of the above
G) D) and E)

Question 4

Most of thactivfunctions of plasma membranes arcarrieout by

Accepted Answer

A)  cholesterol.
B)  proteins.
C)  hydrophilic heads.
D)  hydrophobic tails.
E)  carbohydrates.F) A) and E)
G) A) and C)

Question 5

Which arexamples of prokaryotes?

Accepted Answer

A)  protozoa
B)  bacteria
C)  algae
D)  fungi
E)  mossesF) A) and E)
G) B) and D)

Question 6

Thphospholipids of most membranes have

Accepted Answer

A)  a hydrophobic head and a hydrophilic tail.
B)  a hydrophobic head and a hydrophobic tail.
C)  a hydrophobic head and two hydrophobic tails.
D)  a hydrophilic head and two hydrophobic tails.
E)  none of these.F) C) and E)
G) B) and C) D

Question 7

Examinthfollowing micrograph.This micrograph represents which of thcellular organelles?

Accepted Answer

A)  mitochondrion
B)  vesicle
C)  nucleus
D)  endoplasmic reticulum
E)  chloroplastF) None of the above
G) A) and B)

Question 8

Hdevelopethfirst simplmicroscope.

Accepted Answer

A)  Hooke
B)  Leeuwenhoek
C)  Schwann
D)  Schleiden
E)  FlemingF) B) and D)
G) A) and C)

Question 9

Which of thfollowing cell organelles is responsiblfor disposal of alcohol?

Accepted Answer

A)  Golgi body
B)  peroxisome
C)  lysosome
D)  ribosome
E)  mitochondrionF) A) and E)
G) B) and E) B

Question 10

Findetails of a cell's surfacarrevealewhen using

Accepted Answer

A)  a scanning electron microscope.
B)  a transmission electron microscope.
C)  a light microscope.
D)  a magnifying glass.
E)  none of these.F) C) and D)
G) None of the above

Question 11

Which of thfollowing arfounin BOTH plant ananimal cells?

Accepted Answer

A)  nucleus, Golgi body, and chloroplasts
B)  ribosomes, mitochondria, and plasma membranes
C)  centrioles, cell wall, and nucleolus
D)  vacuoles, nucleolus, and starch grains
E)  starch grains, chloroplasts, and vacuolesF) All of the above
G) A) and E)

Question 12

When contaminatewith E.coli O157:H7, fresh meat shoulbcooketo at least __________ in order to prevent any foointoxication.

Accepted Answer

A)  71°C (160°F) 
B)  75°C (167°F) 
C)  65°C (149°F) 
D)  85°C (185°F) 
E)  91°C (196°F) F) C) and D)
G) A) and C)

Question 13

Human cells artightly connectein order to fortissues such as muscltissues.Thsubstancthat is responsiblfor such behavior in thostissues is called

Accepted Answer

A)  intracellular matrix.
B)  extracellular matrix.
C)  exoskeleton.
D)  extracellular sticky substance.
E)  exocytoskeleton.F) A) and B)
G) A) and C)

Question 14

Examinthfigurbelow.By law, that symbol must bmarkeon __________ foods.

Accepted Answer

A)  irradiated
B)  genetically modified
C)  pasteurized
D)  disinfected
E)  potentially contaminatedF) A) and E)
G) A) and B)

Question 15

What laboratory equipment is useto observcells?

Accepted Answer

A)  stethoscope
B)  telescope
C)  microscope
D)  macroscope
E)  all of theseF) B) and D)
G) B) and C)

Question 16

All of thfollowing statements relateto thnucleus artruEXCEPT

Accepted Answer

A)  the nucleus is the site of RNA synthesis.
B)  the nucleus contains the genetic information of the cell.
C)  like other membrane-bound organelles, the nuclear envelope consists of one phospholipid bilayer.
D)  the nuclear envelope harbors receptors and transporters.
E)  the nuclear envelope contains pores.F) A) and B)
G) A) and C)

Question 17

Examinthfollowing micrograph.This micrograph represents which of thcellular organelles?

Accepted Answer

A)  mitochondrion
B)  vesicle
C)  nucleus
D)  endoplasmic reticulum
E)  chloroplastF) B) and C)
G) A) and E) E

Question 18

Plasmodesmata arrelateto

Accepted Answer

A)  gap junctions in animal cells.
B)  tight junctions in bacteria.
C)  wall junctions in plants.
D)  adhering junctions.
E)  both tight junctions in bacteria and adhering junctions.F) A) and E)
G) A) and D)

Question 19

A hypothetical "microbullet" shot through a phospholipids bilayer will pass thcomponent in which order?

Accepted Answer

A)  tail >>> tail >>> head >>> head
B)  head >>> tail >>> tail >>> head
C)  head >>> tail >>> head >>> tail
D)  head >>> head >>> tail >>> tail
E)  tail >>> head >>> tail >>> headF) C) and D)
G) A) and D)

Question 20

Thorganellthat pinches off portions of its membranto fora vesiclusefor storagor transport is the

Accepted Answer

A)  mitochondrion.
B)  chloroplast.
C)  nucleus.
D)  Golgi body.
E)  ribosome.F) B) and D)
G) C) and E)

Exam 3: Cell Structure

Which of thfollowing arsometimes referreto as rough or smooth, depending on thstructure?

Correct AnswerverifiedShow Answer

A water-solublhormon(signaling molecule) woulmost likely binto which of thfollowing membranproteins?

Correct AnswerverifiedShow Answer

Thhighest magnification generally useto study thinternal structurof cells is provideby

Correct AnswerverifiedShow Answer

Most of thactivfunctions of plasma membranes arcarrieout by

Correct AnswerverifiedShow Answer

Which arexamples of prokaryotes?

Correct AnswerverifiedShow Answer

Thphospholipids of most membranes have

Correct AnswerverifiedD

Examinthfollowing micrograph.This micrograph represents which of thcellular organelles?

Correct AnswerverifiedShow Answer

Hdevelopethfirst simplmicroscope.

Correct AnswerverifiedShow Answer

Which of thfollowing cell organelles is responsiblfor disposal of alcohol?

Correct AnswerverifiedB

Findetails of a cell's surfacarrevealewhen using

Correct AnswerverifiedShow Answer

Which of thfollowing arfounin BOTH plant ananimal cells?

Correct AnswerverifiedShow Answer

When contaminatewith E.coli O157:H7, fresh meat shoulbcooketo at least __________ in order to prevent any foointoxication.

Correct AnswerverifiedShow Answer

Human cells artightly connectein order to fortissues such as muscltissues.Thsubstancthat is responsiblfor such behavior in thostissues is called

Correct AnswerverifiedShow Answer

Examinthfigurbelow.By law, that symbol must bmarkeon __________ foods.

Correct AnswerverifiedShow Answer

What laboratory equipment is useto observcells?

Correct AnswerverifiedShow Answer

All of thfollowing statements relateto thnucleus artruEXCEPT

Correct AnswerverifiedShow Answer

Examinthfollowing micrograph.This micrograph represents which of thcellular organelles?

Correct AnswerverifiedE

Plasmodesmata arrelateto

Correct AnswerverifiedShow Answer

A hypothetical "microbullet" shot through a phospholipids bilayer will pass thcomponent in which order?

Correct AnswerverifiedShow Answer

Thorganellthat pinches off portions of its membranto fora vesiclusefor storagor transport is the

Correct AnswerverifiedShow Answer

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D

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B

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E

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