Question 1

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. 
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. D

Question 2

Examinthfollowing micrograph.This micrograph represents which of thcellular organelles?

Accepted Answer

A) mitochondrion 
B) vesicle 
C) nucleus 
D) endoplasmic reticulum 
E) chloroplast 
A) mitochondrion 
B) vesicle 
C) nucleus 
D) endoplasmic reticulum 
E) chloroplast E

Question 3

Which of thfollowing cell organelles is responsiblfor disposal of alcohol?

Accepted Answer

A) Golgi body 
B) peroxisome 
C) lysosome 
D) ribosome 
E) mitochondrion 
A) Golgi body 
B) peroxisome 
C) lysosome 
D) ribosome 
E) mitochondrion B

Question 4

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 vacuoles 
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 vacuoles

Question 5

Most of thactivfunctions of plasma membranes arcarrieout by

Accepted Answer

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

Question 6

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. 
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.

Question 7

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 reticulum 
A) Golgi bodies 
B) mitochondria 
C) lysosomes 
D) ribosomes 
E) endoplasmic reticulum

Question 8

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. 
A) a scanning electron microscope. 
B) a transmission electron microscope. 
C) a light microscope. 
D) a magnifying glass. 
E) none of these.

Question 9

Examinthfollowing micrograph.This micrograph represents which of thcellular organelles?

Accepted Answer

A) mitochondrion 
B) vesicle 
C) nucleus 
D) endoplasmic reticulum 
E) chloroplast 
A) mitochondrion 
B) vesicle 
C) nucleus 
D) endoplasmic reticulum 
E) chloroplast

Question 10

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) regulator 
A) active transporter 
B) recognition 
C) receptor 
D) passive transporter 
E) regulator

Question 11

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. 
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.

Question 12

Which arexamples of prokaryotes?

Accepted Answer

A) protozoa 
B) bacteria 
C) algae 
D) fungi 
E) mosses 
A) protozoa 
B) bacteria 
C) algae 
D) fungi 
E) mosses

Question 13

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. 
A) the scanning electron microscope. 
B) the transmission electron microscope. 
C) the light microscope. 
D) the magnifying glass. 
E) none of these.

Question 14

What laboratory equipment is useto observcells?

Accepted Answer

A) stethoscope 
B) telescope 
C) microscope 
D) macroscope 
E) all of these 
A) stethoscope 
B) telescope 
C) microscope 
D) macroscope 
E) all of these

Question 15

Hdevelopethfirst simplmicroscope.

Accepted Answer

A) Hooke 
B) Leeuwenhoek 
C) Schwann 
D) Schleiden 
E) Fleming 
A) Hooke 
B) Leeuwenhoek 
C) Schwann 
D) Schleiden 
E) Fleming

Question 16

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

Question 17

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

Accepted Answer

A) irradiated 
B) genetically modified 
C) pasteurized 
D) disinfected 
E) potentially contaminated 
A) irradiated 
B) genetically modified 
C) pasteurized 
D) disinfected 
E) potentially contaminated

Question 18

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) 
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)

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 >>> head 
A) tail >>> tail >>> head >>> head 
B) head >>> tail >>> tail >>> head 
C) head >>> tail >>> head >>> tail 
D) head >>> head >>> tail >>> tail 
E) tail >>> head >>> tail >>> head

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

Exam 3: Cell Structure

Thphospholipids of most membranes have

Examinthfollowing micrograph.This micrograph represents which of thcellular organelles?

Which of thfollowing cell organelles is responsiblfor disposal of alcohol?

Which of thfollowing arfounin BOTH plant ananimal cells?

Most of thactivfunctions of plasma membranes arcarrieout by

All of thfollowing statements relateto thnucleus artruEXCEPT

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

Findetails of a cell's surfacarrevealewhen using

Examinthfollowing micrograph.This micrograph represents which of thcellular organelles?

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

Plasmodesmata arrelateto

Which arexamples of prokaryotes?

Thhighest magnification generally useto study thinternal structurof cells is provideby

What laboratory equipment is useto observcells?

Hdevelopethfirst simplmicroscope.

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

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

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

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

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

Invitation to Biology

Molecules of Life

Energy and Metabolism

Capturing and Releasing Energy

Dna Structure and Function

Gene Expression and Control

How Cells Reproduce

Patterns of Inheritance

Biotechnology

Evidence of Evolution

Processes of Evolution

Early Life Forms and the Viruses

Plants and Fungi

Animal Evolutionunit

Population Ecology

Communities and Ecosystems

The Biosphere and Human Eff Ects

Animal Tissues and Organs

How Animals Move

Circulation and Respiration

Immunity

Digestion and Excretion

Neural Control and the Senses

Endocrine Control

Reproduction and Development

Plant Form and Function

Plant Reproduction and Development

Filters