Question 1

Penicillin kills bacteria by disrupting their

Accepted Answer

A)  cell wall. 
B)  cell membrane. 
C)  DNA. 
D)  ribosomes. 
E)  lysosomes. 
A)  cell wall. 
B)  cell membrane. 
C)  DNA. 
D)  ribosomes. 
E)  lysosomes.

Question 2

Mitochondria are found in

Accepted Answer

A)  bacterial cells. 
B)  animal cells. 
C)  plant cells. 
D)  animal and plant cells. 
E)  all cells. 
A)  bacterial cells. 
B)  animal cells. 
C)  plant cells. 
D)  animal and plant cells. 
E)  all cells.

Question 3

The interior part of the bilayer in a cell membrane is hydro-_____.

Accepted Answer

The answer of The interior part of the bilayer in...

Question 4

All of the following are true of the cell membrane EXCEPT

Accepted Answer

A)  it is a boundary between the environment and the cytoplasm. 
B)  it is semipermeable. 
C)  it is stiff and rigid. 
D)  it is made of phospholipids. 
E)  it contains proteins that can transport nutrients in and out. 
A)  it is a boundary between the environment and the cytoplasm. 
B)  it is semipermeable. 
C)  it is stiff and rigid. 
D)  it is made of phospholipids. 
E)  it contains proteins that can transport nutrients in and out.

Question 5

Proteins that move large or hydrophilic molecules across a cell membrane are called ____ proteins.

Accepted Answer

The answer of Proteins that move large or hydrophilic molecules...

Question 6

The process of molecules moving from a high concentration to a lower concentration in a solution without an energy input is termed

Accepted Answer

A)  active transport. 
B)  active diffusion. 
C)  facilitated diffusion. 
D)  simple diffusion. 
E)  osmosis. 
A)  active transport. 
B)  active diffusion. 
C)  facilitated diffusion. 
D)  simple diffusion. 
E)  osmosis.

Question 7

Molecules that can cross the cell membrane by simple diffusion are

Accepted Answer

A)  large. 
B)  ions. 
C)  hydrophilic. 
D)  uncharged molecules. 
E)  All molecules can cross the cell membrane by simple diffusion. 
A)  large. 
B)  ions. 
C)  hydrophilic. 
D)  uncharged molecules. 
E)  All molecules can cross the cell membrane by simple diffusion.

Question 8

Compare the activity of penicillin and streptomycin and explain why one is effective against gram-negative bacteria and the other is effective against gram-positive bacteria.

Accepted Answer

Penicillin interferes with peptidoglycan

Question 9

When observing a sample of cells through the microscope,presence of which of the following structures would indicate that you were observing a eukaryote and not a prokaryote?

Accepted Answer

A)  cytoplasm 
B)  mitochondria 
C)  DNA 
D)  cell wall 
E)  ribosomes 
A)  cytoplasm 
B)  mitochondria 
C)  DNA 
D)  cell wall 
E)  ribosomes

Question 10

Bacterial cell walls are made rigid by the presence of

Accepted Answer

A)  phosphates. 
B)  lipids. 
C)  peptidoglycan. 
D)  cholesterol. 
E)  glycerol. 
A)  phosphates. 
B)  lipids. 
C)  peptidoglycan. 
D)  cholesterol. 
E)  glycerol.

Question 11

Where is the genetic information of a prokaryotic organism stored?

Accepted Answer

A)  in the cytoplasm 
B)  in the nucleus 
C)  in the ribosomes 
D)  on a DNA chromosome in the cytoplasm 
E)  on a chromosome in the nucleus 
A)  in the cytoplasm 
B)  in the nucleus 
C)  in the ribosomes 
D)  on a DNA chromosome in the cytoplasm 
E)  on a chromosome in the nucleus

Question 12

All of the following are true of the mitochondria EXCEPT

Accepted Answer

A)  they have a double membrane. 
B)  they have ribosomes. 
C)  they have their own DNA. 
D)  they convert food energy to energy the cell can use. 
E)  they are not found in plant cells. 
A)  they have a double membrane. 
B)  they have ribosomes. 
C)  they have their own DNA. 
D)  they convert food energy to energy the cell can use. 
E)  they are not found in plant cells.

Question 13

All of the following describe transport proteins EXCEPT

Accepted Answer

A)  there are hundreds of types in the human body. 
B)  they are very specific in the type of molecule they transfer. 
C)  they are embedded in the cell membrane. 
D)  they allow large molecules to pass across the cell membrane. 
E)  they help small hydrophobic molecules to pass across the cell membrane. 
A)  there are hundreds of types in the human body. 
B)  they are very specific in the type of molecule they transfer. 
C)  they are embedded in the cell membrane. 
D)  they allow large molecules to pass across the cell membrane. 
E)  they help small hydrophobic molecules to pass across the cell membrane.

Question 14

Which structure is found only in eukaryotes?

Accepted Answer

A)  cytoplasm 
B)  cell membrane 
C)  DNA 
D)  nucleus 
E)  ribosomes 
A)  cytoplasm 
B)  cell membrane 
C)  DNA 
D)  nucleus 
E)  ribosomes

Question 15

Which of the following has prokaryotic cells?

Accepted Answer

A)  a plant 
B)  an organism with a nucleus 
C)  a bacterium 
D)  a human 
E)  Penicillium 
A)  a plant 
B)  an organism with a nucleus 
C)  a bacterium 
D)  a human 
E)  Penicillium

Question 16

Penicillin works by

Accepted Answer

A)  interfering with the ability of bacterial cells to take in nutrients. 
B)  interfering with the formation of peptidoglycan. 
C)  interfering with protein formation in bacterial cells. 
D)  breaking up the DNA in a bacterial cell. 
E)  breaking up the cell membrane. 
A)  interfering with the ability of bacterial cells to take in nutrients. 
B)  interfering with the formation of peptidoglycan. 
C)  interfering with protein formation in bacterial cells. 
D)  breaking up the DNA in a bacterial cell. 
E)  breaking up the cell membrane.

Question 17

Ribosomes are found in

Accepted Answer

A)  bacterial cells. 
B)  animal cells. 
C)  plant cells. 
D)  animal and plant cells. 
E)  all cells. 
A)  bacterial cells. 
B)  animal cells. 
C)  plant cells. 
D)  animal and plant cells. 
E)  all cells.

Question 18

Chloroplasts are found in

Accepted Answer

A)  bacterial cells. 
B)  animal cells. 
C)  plant cells. 
D)  animal and plant cells. 
E)  all cells. 
A)  bacterial cells. 
B)  animal cells. 
C)  plant cells. 
D)  animal and plant cells. 
E)  all cells.

Question 19

List at least three similarities between prokaryotic and eukaryotic cells.

Accepted Answer

-cell memb

Question 20

According to the cell theory,all living organisms are composed of

Accepted Answer

A)  DNA. 
B)  cells. 
C)  proteins. 
D)  macromolecules. 
E)  phospholipids. 
A)  DNA. 
B)  cells. 
C)  proteins. 
D)  macromolecules. 
E)  phospholipids.

Exam 3: Cell Function and Structure Wonder Drug

Penicillin kills bacteria by disrupting their

Mitochondria are found in

The interior part of the bilayer in a cell membrane is hydro-_____.

All of the following are true of the cell membrane EXCEPT

Proteins that move large or hydrophilic molecules across a cell membrane are called ____ proteins.

The process of molecules moving from a high concentration to a lower concentration in a solution without an energy input is termed

Molecules that can cross the cell membrane by simple diffusion are

Compare the activity of penicillin and streptomycin and explain why one is effective against gram-negative bacteria and the other is effective against gram-positive bacteria.

When observing a sample of cells through the microscope,presence of which of the following structures would indicate that you were observing a eukaryote and not a prokaryote?

Bacterial cell walls are made rigid by the presence of

Where is the genetic information of a prokaryotic organism stored?

All of the following are true of the mitochondria EXCEPT

All of the following describe transport proteins EXCEPT

Which structure is found only in eukaryotes?

Which of the following has prokaryotic cells?

Penicillin works by

Ribosomes are found in

Chloroplasts are found in

List at least three similarities between prokaryotic and eukaryotic cells.

According to the cell theory,all living organisms are composed of

The Process of Science Java Report

Chemistry and Molecules of Life Mission to Mars

Nutrition,metabolism,enzymes the Peanut Butter Project

Energy Flow and Photosynthesis the Future of Fuel

Dietary Energy and Cellular Respiration Supersize Me

DNA Structure and Replication Biologically Unique

Genes to Proteins Medicine From Milk

Cell Division and Mitosis Natures Pharmacy

Mutations and Cancer Fighting Fate

Single-Gene Inheritance and Meiosis Rock for a Cause

Complex Inheritance Qa: Genetics

Stem Cells and Cell Differentiation Grow Your Own

Natural Selection and Adaptation Bugs That Resist Drugs

A: Nonadaptive Evolution and Speciation Urban Evolution

B: Nonadaptive Evolution and Speciation Urban Evolution

Evidence for Evolution a Fish With Fingers

Life on Earth Qa: Evolution

Prokaryotic Diversity Lost City

A: Eukaryotic Diversity Rain Forest Riches

B: Eukaryotic Diversity Rain Forest Riches

Human Evolution Skin Deep

A: Population Ecology on the Tracks of Wolves and Moose

B: Population Ecology on the Tracks of Wolves and Moose

A: Community Ecology Whats Happening to Honey Bees

B: Community Ecology Whats Happening to Honey Bees

A: Ecosystem Ecology the Heat Is on

B: Ecosystem Ecology the Heat Is on

A: Sustainability the Makings of a Green City

B: Sustainability the Makings of a Green City

A: Overview of Physiology Man Versus Mountain

B: Overview of Physiology Man Versus Mountain

Digestive System Drastic Measures

A: Cardiovascular System Death in Bogalusa

B: Cardiovascular System Death in Bogalusa

Respiratory System Peak Performance

A: Central Nervous System Smoke on the Brain

B: Central Nervous System Smoke on the Brain

Reproductive System Too Many Multiples

Immune System Viral Mysteries

A: Plant Physiology

B: Plant Physiology

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