Question 1

What cell component is an important factor in the pathogenicity of many disease-causing bacteria?

Accepted Answer

A) nucleoid 
B) pilus 
C) polysaccharide capsule 
D) flagella 
E) cell wall 
A) nucleoid 
B) pilus 
C) polysaccharide capsule 
D) flagella 
E) cell wall C

Question 2

A biologist who says that the human body might be getting its power from "bacteria," is referring to

Accepted Answer

A) some cells that utilize bacteria to produce energy. 
B) bacteria in our intestinal tract that digest food to supply us with energy. 
C) the mitochondria in our cells that may have originated as endosymbiotic bacteria. 
D) the E.coli throughout the human body that produce ATP. 
E) photoautotrophic bacteria that, like plants, can produce carbohydrates from sunlight and carbon dioxide. 
A) some cells that utilize bacteria to produce energy. 
B) bacteria in our intestinal tract that digest food to supply us with energy. 
C) the mitochondria in our cells that may have originated as endosymbiotic bacteria. 
D) the E.coli throughout the human body that produce ATP. 
E) photoautotrophic bacteria that, like plants, can produce carbohydrates from sunlight and carbon dioxide. C

Question 3

Prokaryotes

Accepted Answer

A) have nucleoid regions. 
B) are unicellular. 
C) may have cell walls. 
D) are either bacteria or archaeans. 
E) are all of these. 
A) have nucleoid regions. 
B) are unicellular. 
C) may have cell walls. 
D) are either bacteria or archaeans. 
E) are all of these. E

Question 4

The mitochondrion harnesses the energy of the flow of __________ from its __________ compartment to its __________ compartment to generate ATP.

Accepted Answer

A) CO2; outer; inner 
B) H+; outer; inner 
C) H+; inner; outer 
D) H2O2; outer; inner 
E) CO2; inner; outer 
A) CO2; outer; inner 
B) H+; outer; inner 
C) H+; inner; outer 
D) H2O2; outer; inner 
E) CO2; inner; outer

Question 5

Years before Schwann's pronouncement that a cell has a life of its own even as a component of a multicellular organism, the cell nucleus had been discovered by

Accepted Answer

A) Robert Hooke. 
B) Robert Brown. 
C) Theodor Schwann. 
D) Rudolf Virchow. 
E) Anton van Leeuwenhoek. 
A) Robert Hooke. 
B) Robert Brown. 
C) Theodor Schwann. 
D) Rudolf Virchow. 
E) Anton van Leeuwenhoek.

Question 6

The first cell seen by Robert Hooke using a microscope was a

Accepted Answer

A) cork cell. 
B) cell from an insect's eye. 
C) sperm cell. 
D) protist cell. 
E) bacterial cell. 
A) cork cell. 
B) cell from an insect's eye. 
C) sperm cell. 
D) protist cell. 
E) bacterial cell.

Question 7

Which of the following scientists was least involved in defining the properties of the cell?

Accepted Answer

A) Robert Hooke 
B) Robert Brown 
C) Galileo Galilee 
D) Rudolf Virchow 
E) Anton van Leeuwenhoek 
A) Robert Hooke 
B) Robert Brown 
C) Galileo Galilee 
D) Rudolf Virchow 
E) Anton van Leeuwenhoek

Question 8

Lysosomes serve as

Accepted Answer

A) protein synthesis organelles. 
B) protein packaging organelles. 
C) organelles of peroxide digestion. 
D) waste disposal and recycling centers. 
E) centers for cell division. 
A) protein synthesis organelles. 
B) protein packaging organelles. 
C) organelles of peroxide digestion. 
D) waste disposal and recycling centers. 
E) centers for cell division.

Question 9

All of the following are true of outbreaks with Escherichia coli O157:H7 cells EXCEPT

Accepted Answer

A) strong economic impacts 
B) fear in consumers 
C) thousands of deaths 
D) intestinal infection in some people 
E) not a cause of disease in cows 
A) strong economic impacts 
B) fear in consumers 
C) thousands of deaths 
D) intestinal infection in some people 
E) not a cause of disease in cows

Question 10

The first person acknowledged to have seen living, moving cells by using a microscope was

Accepted Answer

A) Robert Hooke. 
B) Robert Brown. 
C) Galileo Galilee. 
D) Rudolf Virchow. 
E) Anton van Leeuwenhoek. 
A) Robert Hooke. 
B) Robert Brown. 
C) Galileo Galilee. 
D) Rudolf Virchow. 
E) Anton van Leeuwenhoek.

Question 11

Volume increases by the __________ of the diameter, and surface area increases by __________ of the diameter.

Accepted Answer

A) square; doubling 
B) square; the cube 
C) cube; the square 
D) cube; the cube 
E) none of these 
A) square; doubling 
B) square; the cube 
C) cube; the square 
D) cube; the cube 
E) none of these

Question 12

Which of the following contain enzymes used in the breakdown of glucose and generation of ATP?

Accepted Answer

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

Question 13

Which of the following are the primary structures that package cellular secretions for export from the cell?

Accepted Answer

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

Question 14

Plasmodesmata are cell junctions that are similar in function to

Accepted Answer

A) gap junctions in animal cells. 
B) tight junctions in animal cells. 
C) adhering junctions in animal cells. 
D) the cuticle in plant cells. 
E) stomata in plant cells. 
A) gap junctions in animal cells. 
B) tight junctions in animal cells. 
C) adhering junctions in animal cells. 
D) the cuticle in plant cells. 
E) stomata in plant cells.

Question 15

Most prokaryotic cells are no wider than

Accepted Answer

A) 0.01 micrometers. 
B) 0.10 micrometers. 
C) 0.50 micrometers. 
D) 1.00 micrometers. 
E) 10.00 micrometers. 
A) 0.01 micrometers. 
B) 0.10 micrometers. 
C) 0.50 micrometers. 
D) 1.00 micrometers. 
E) 10.00 micrometers.

Question 16

The space between the two membranes of the mitochondrion stockpiles

Accepted Answer

A) proteins. 
B) H+. 
C) carbohydrates. 
D) H2O2. 
E) CO2. 
A) proteins. 
B) H+. 
C) carbohydrates. 
D) H2O2. 
E) CO2.

Question 17

Which of the following is thought to be the descendant of engulfed ancient bacteria?

Accepted Answer

A) nuclei 
B) Golgi bodies 
C) ER 
D) mitochondria 
E) lysosomes 
A) nuclei 
B) Golgi bodies 
C) ER 
D) mitochondria 
E) lysosomes

Question 18

The gene that causes Tay-Sachs disease is most prevalent in

Accepted Answer

A) Jews of Eastern European descent. 
B) Blacks. 
C) Asians. 
D) Mediterraneans. 
E) all of these. 
A) Jews of Eastern European descent. 
B) Blacks. 
C) Asians. 
D) Mediterraneans. 
E) all of these.

Question 19

The genetic material of prokaryotes is

Accepted Answer

A) RNA. 
B) linear. 
C) circular. 
D) single-stranded DNA. 
E) protected within a double-membrane structure. 
A) RNA. 
B) linear. 
C) circular. 
D) single-stranded DNA. 
E) protected within a double-membrane structure.

Question 20

Which cell feature is absent in bacterial cells?

Accepted Answer

A) plasma membrane 
B) nucleoid 
C) cytoplasm 
D) nucleus 
E) DNA 
A) plasma membrane 
B) nucleoid 
C) cytoplasm 
D) nucleus 
E) DNA

Exam 4: Cell Structure and Function

What cell component is an important factor in the pathogenicity of many disease-causing bacteria?

A biologist who says that the human body might be getting its power from "bacteria," is referring to

Prokaryotes

The mitochondrion harnesses the energy of the flow of __________ from its __________ compartment to its __________ compartment to generate ATP.

Years before Schwann's pronouncement that a cell has a life of its own even as a component of a multicellular organism, the cell nucleus had been discovered by

The first cell seen by Robert Hooke using a microscope was a

Which of the following scientists was least involved in defining the properties of the cell?

Lysosomes serve as

All of the following are true of outbreaks with Escherichia coli O157:H7 cells EXCEPT

The first person acknowledged to have seen living, moving cells by using a microscope was

Volume increases by the __________ of the diameter, and surface area increases by __________ of the diameter.

Which of the following contain enzymes used in the breakdown of glucose and generation of ATP?

Which of the following are the primary structures that package cellular secretions for export from the cell?

Plasmodesmata are cell junctions that are similar in function to

Most prokaryotic cells are no wider than

The space between the two membranes of the mitochondrion stockpiles

Which of the following is thought to be the descendant of engulfed ancient bacteria?

The gene that causes Tay-Sachs disease is most prevalent in

The genetic material of prokaryotes is

Which cell feature is absent in bacterial cells?

Invitation to Biology

Lifes Chemical Basis

Molecules of Life

A Closer Look at Cell Membranes

Ground Rules of Metabolism

Where It Startsphotosynthesis

Energy-Releasing Pathways

How Cells Reproduce

Meiosis and Sexual Reproduction

Observing Patterns in Inherited Traits

Chromosomes and Human Inheritance

Dna Structure and Function

From Dna to Protein

Controls Over Genes

Recombinant Dna and Genetic Engineering

The Macroevolutionary Puzzle

Emergence of Evolutionary Thought

Organizing Information About Species

The Origin and Evolution of Life

Viruses and Prokaryotes

Protists the Simplest Eukaryotes

Plants

Fungi

Animals: the Invertebrates

Animal Evolution the Chordates

Human Evolution: a Case Study

Plant Tissues

Plant Nutrition and Transport

Plant Reproduction

Plant Growth and Development

Animal Tissues and Organ Systems

Neural Control

Sensory Perception

Endocrine Control

Protection, Support, and Movement

Circulation

Immunity

Respiration

Digestion and Human Nutrition

Maintaining the Internal Environment

Animal Reproductive Systems

Animal Development

Animal Behavior

Population Ecology

Community Structure and Biodiversity

Ecosystems

The Biosphere

Human Impacts on the Biosphere

Filters

The mitochondrion harnesses the energy of the flow of from its compartment to its __ compartment to generate ATP.

Volume increases by the of the diameter, and surface area increases by of the diameter.