Question 1

In nature, a biofilmay include

Accepted Answer

A) bacteria only. 
B) microscopic algae only. 
C) fungi only. 
D) protists only. 
E) bacteria, microscopic algae, protests, and fungi. 
A) bacteria only. 
B) microscopic algae only. 
C) fungi only. 
D) protists only. 
E) bacteria, microscopic algae, protests, and fungi.

Question 2

Which of thesstrains of Escherichia coli is responsiblfor foointoxication?

Accepted Answer

A) BL21(DE3) 
B) O157:H7 
C) XL1-Blue 
D) JM109 
E) TOP10 
A) BL21(DE3) 
B) O157:H7 
C) XL1-Blue 
D) JM109 
E) TOP10

Question 3

__________ arresponsiblfor separating chromosomes during cell division.

Accepted Answer

A) Microfilaments. 
B) Intermediate filaments. 
C) Actin filaments 
D) Microtubules 
E) Microfibers 
A) Microfilaments. 
B) Intermediate filaments. 
C) Actin filaments 
D) Microtubules 
E) Microfibers

Question 4

On which of thfollowing arpolypeptidchains constructed?

Accepted Answer

A) Golgi bodies 
B) mitochondria 
C) chloroplasts 
D) ribosomes 
E) endoplasmic reticula 
A) Golgi bodies 
B) mitochondria 
C) chloroplasts 
D) ribosomes 
E) endoplasmic reticula

Question 5

Which of thfollowing terms CANNOT buseto characterizeukaryotic chromosomes?

Accepted Answer

A) DNA plus proteins 
B) duplicated 
C) condensed 
D) bathed in cytoplasm 
E) "colored bodies" 
A) DNA plus proteins 
B) duplicated 
C) condensed 
D) bathed in cytoplasm 
E) "colored bodies"

Question 6

A transport protein is most analogous to a

Accepted Answer

A) wall partition. 
B) subway train. 
C) light switch. 
D) voice identification device. 
E) television receiver. 
A) wall partition. 
B) subway train. 
C) light switch. 
D) voice identification device. 
E) television receiver.

Question 7

Which organellis whiplikin structuranfunction?

Accepted Answer

A) microfilaments 
B) intermediate filaments 
C) microvillus 
D) flagellum 
E) microtubule 
A) microfilaments 
B) intermediate filaments 
C) microvillus 
D) flagellum 
E) microtubule

Question 8

Structural features which contain proteins that help to control thshapof cells are

Accepted Answer

A) plastids. 
B) vacuoles. 
C) microvilli 
D) nucleoli. 
E) microfilaments. 
A) plastids. 
B) vacuoles. 
C) microvilli 
D) nucleoli. 
E) microfilaments.

Question 9

Thcell theory was first mentioneby both

Accepted Answer

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

Question 10

Which of thfollowing arprimarily structures for thpackaging of cellular secretions for export frothcell?

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 11

Which of thfollowing investigators observefor thfirst timliving microscopic organisms?

Accepted Answer

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

Question 12

Elephants arlarganimals becausthey

Accepted Answer

A) have bigger cells. 
B) possess expandable cells. 
C) are made of a greater number of cells. 
D) have bigger cells and are made of a greater number of cells. 
E) have bigger cells that are expandable and of greater number. 
A) have bigger cells. 
B) possess expandable cells. 
C) are made of a greater number of cells. 
D) have bigger cells and are made of a greater number of cells. 
E) have bigger cells that are expandable and of greater number.

Question 13

Motor proteins aractivin

Accepted Answer

A) Golgi bodies. 
B) microtubules. 
C) ribosomes. 
D) cilia. 
E) both microtubules and cilia. 
A) Golgi bodies. 
B) microtubules. 
C) ribosomes. 
D) cilia. 
E) both microtubules and cilia.

Question 14

Which of thfollowing statements is TRUE?

Accepted Answer

A) When lipids and water are mixed, water molecules isolate themselves into droplets. 
B) When lipids and water are mixed, lipids dissolve and enter into a solution. 
C) Lipids are classified as nonpolar substances and will not mix with water. 
D) Polar substances are able to pass through a plasma membrane more readily than nonpolar substances. 
E) All portions of a phospholipid molecule found in a membrane are classified as nonpolar. 
A) When lipids and water are mixed, water molecules isolate themselves into droplets. 
B) When lipids and water are mixed, lipids dissolve and enter into a solution. 
C) Lipids are classified as nonpolar substances and will not mix with water. 
D) Polar substances are able to pass through a plasma membrane more readily than nonpolar substances. 
E) All portions of a phospholipid molecule found in a membrane are classified as nonpolar.

Question 15

Cilia anflagella

Accepted Answer

A) are found only in cells that are actively moving. 
B) are found only in sex cells and unicellular organisms. 
C) use motor proteins to induce movement. 
D) may also function as receptor sites for certain hormones. 
E) are found only in one-celled organisms. 
A) are found only in cells that are actively moving. 
B) are found only in sex cells and unicellular organisms. 
C) use motor proteins to induce movement. 
D) may also function as receptor sites for certain hormones. 
E) are found only in one-celled organisms.

Question 16

Which of thfollowing statements is CORRECT about thcytoskeleton?

Accepted Answer

A) The cytoskeleton is responsible for the shape of red blood cells. 
B) The cytoskeleton is responsible for the movement of a sperm cell moving toward an egg cell. 
C) The cytoskeleton determines the pathway of transport vesicles that migrate along it. 
D) All of these are correct. 
E) None of these are correct. 
A) The cytoskeleton is responsible for the shape of red blood cells. 
B) The cytoskeleton is responsible for the movement of a sperm cell moving toward an egg cell. 
C) The cytoskeleton determines the pathway of transport vesicles that migrate along it. 
D) All of these are correct. 
E) None of these are correct.

Question 17

Four of thfivstatements listebelow arportions of a well-known theory.Select thEXCEPTION.

Accepted Answer

A) Cells are the structural and functional components of living things. 
B) Cells arise from preexisting cells. 
C) All organisms are composed of cells. 
D) Cells are the basic living unit of organization of living things. 
E) All cells have a nucleus. 
A) Cells are the structural and functional components of living things. 
B) Cells arise from preexisting cells. 
C) All organisms are composed of cells. 
D) Cells are the basic living unit of organization of living things. 
E) All cells have a nucleus.

Question 18

Proteins that arsynthesizethrough thendoplasmic reticululeavthsitafter folding on their

Accepted Answer

A) primary structure. 
B) secondary structure. 
C) tertiary structure. 
D) primary and secondary structures. 
E) secondary and tertiary structures. 
A) primary structure. 
B) secondary structure. 
C) tertiary structure. 
D) primary and secondary structures. 
E) secondary and tertiary structures.

Question 19

In order to get riof O157:H7, fooproducers havdevelopea new approveprotocol which is to __________ fruits anvegetables.

Accepted Answer

A) wash 
B) apply radiation to 
C) disinfect 
D) pasteurize 
E) apply a mild heat to 
A) wash 
B) apply radiation to 
C) disinfect 
D) pasteurize 
E) apply a mild heat to

Question 20

Through endoplasmic reticuluis so callebecaus__________ stuthsurfacof that organelle.

Accepted Answer

A) carbohydrates 
B) ribosomes 
C) fats 
D) proteins 
E) steroids 
A) carbohydrates 
B) ribosomes 
C) fats 
D) proteins 
E) steroids

Exam 3: Cell Structure

In nature, a biofilmay include

Which of thesstrains of Escherichia coli is responsiblfor foointoxication?

__________ arresponsiblfor separating chromosomes during cell division.

On which of thfollowing arpolypeptidchains constructed?

Which of thfollowing terms CANNOT buseto characterizeukaryotic chromosomes?

A transport protein is most analogous to a

Which organellis whiplikin structuranfunction?

Structural features which contain proteins that help to control thshapof cells are

Thcell theory was first mentioneby both

Which of thfollowing arprimarily structures for thpackaging of cellular secretions for export frothcell?

Which of thfollowing investigators observefor thfirst timliving microscopic organisms?

Elephants arlarganimals becausthey

Motor proteins aractivin

Which of thfollowing statements is TRUE?

Cilia anflagella

Which of thfollowing statements is CORRECT about thcytoskeleton?

Four of thfivstatements listebelow arportions of a well-known theory.Select thEXCEPTION.

Proteins that arsynthesizethrough thendoplasmic reticululeavthsitafter folding on their

In order to get riof O157:H7, fooproducers havdevelopea new approveprotocol which is to __________ fruits anvegetables.

Through endoplasmic reticuluis so callebecaus__________ stuthsurfacof that organelle.

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