Question 1

Short generation time is one of the major factors that support using yeast or _______ for many fundamental molecular genetics experiments.

Accepted Answer

The answer of Short generation time is one of the...

Question 2

Chloroplasts are thought to have originated from endosymbiosis of _______ by a large host cell.

Accepted Answer

A)  anaerobic bacteria 
B)  photosynthetic eubacteria such as cyanobacteria 
C)  fungi such as yeast 
D)  nonphotosynthetic aerobic bacteria 
A)  anaerobic bacteria 
B)  photosynthetic eubacteria such as cyanobacteria 
C)  fungi such as yeast 
D)  nonphotosynthetic aerobic bacteria

Question 3

Mitochondria and chloroplasts are both thought to have become organelles within eukaryotic cells through endocytosis. Mitochondria are thought to have evolved from aerobic eubacteria, while chloroplasts can be readily related to cyanobacteria. What present-day traits of these organelles provide evidence of these origins?

Accepted Answer

A free-living organism has its own DNA t

Question 4

Yeasts are simple eukaryotes.

Accepted Answer

A) True 
 B)False

Question 5

In good culture conditions, E. coli typically divides every two hours.

Accepted Answer

A) True 
 B)False

Question 6

The source of the atmospheric oxygen necessary for the development of oxidative metabolism is thought to have been

Accepted Answer

A)  glycolysis. 
B)  the formation of Earth. 
C)  the breakdown of ATP. 
D)  photosynthesis. 
A)  glycolysis. 
B)  the formation of Earth. 
C)  the breakdown of ATP. 
D)  photosynthesis.

Question 7

Epithelial cells form sheets that cover the surface of the animal body and line internal organs.

Accepted Answer

A) True 
 B)False

Question 8

The light microscope was used to observe the cellular structure of cork by _______, who named the chambers "cells."

Accepted Answer

A)  Schleiden and Schwann 
B)  Hooke 
C)  Virchow 
D)  Leeuwenhoek 
A)  Schleiden and Schwann 
B)  Hooke 
C)  Virchow 
D)  Leeuwenhoek

Question 9

In contrast to yeast or bacterial cells, animal cell cultures are grown on fairly complex media, with added amino acids, vitamins, and/or hormones. This is primarily because animal cells

Accepted Answer

A)  typically live in association with other cells. 
B)  are less capable of transporting small molecules across their membranes. 
C)  come from organisms that have specialized cell types. 
D)  have too many genes to be able to keep track of the biosynthesis of needed metabolites. 
A)  typically live in association with other cells. 
B)  are less capable of transporting small molecules across their membranes. 
C)  come from organisms that have specialized cell types. 
D)  have too many genes to be able to keep track of the biosynthesis of needed metabolites.

Question 10

A single immortalized fibroblast in culture is capable of forming an entire human.

Accepted Answer

A) True 
 B)False

Question 11

In fluorescence photobleaching experiments, recovery time is defined as the amount of time it takes the bleached area to regain its fluorescence. The recovery time for a cell with fluorescently labeled membrane proteins is

Accepted Answer

A)  longer than the recovery time for a cell with fluorescently labeled lipids because lipids diffuse faster than proteins. 
B)  shorter than the recovery time for a cell with fluorescently labeled lipids because proteins diffuse faster than lipids. 
C)  equal to the recovery time for a cell with fluorescently labeled lipids because proteins and lipids diffuse at the same rate. 
D)  shorter than the recovery time for a cell with fluorescently labeled lipids because lipids diffuse faster than proteins. 
A)  longer than the recovery time for a cell with fluorescently labeled lipids because lipids diffuse faster than proteins. 
B)  shorter than the recovery time for a cell with fluorescently labeled lipids because proteins diffuse faster than lipids. 
C)  equal to the recovery time for a cell with fluorescently labeled lipids because proteins and lipids diffuse at the same rate. 
D)  shorter than the recovery time for a cell with fluorescently labeled lipids because lipids diffuse faster than proteins.

Question 12

List three significant differences that distinguish prokaryotic cells from eukaryotic cells.

Accepted Answer

Any three of these four answers are corr

Question 13

Arabidopsis thaliana is a model organism for studying the molecular biology of

Accepted Answer

A)  plants. 
B)  fungi. 
C)  fruit flies. 
D)  vertebrates. 
A)  plants. 
B)  fungi. 
C)  fruit flies. 
D)  vertebrates.

Question 14

The genome of eukaryotes consists of genes derived from

Accepted Answer

A)  archaebacteria alone. 
B)  bacteria alone. 
C)  both archaebacteria and bacteria. 
D)  neither archaebacteria nor bacteria. 
A)  archaebacteria alone. 
B)  bacteria alone. 
C)  both archaebacteria and bacteria. 
D)  neither archaebacteria nor bacteria.

Question 15

Stanley Miller applied electric sparks to a reducing atmosphere of methane, ammonia, water, and hydrogen, and the resulting products showed that under these conditions,

Accepted Answer

A)  amino acids can form. 
B)  nucleotides can form. 
C)  amino acids can polymerize into polypeptides. 
D)  nucleotides can polymerize into nucleic acids. 
A)  amino acids can form. 
B)  nucleotides can form. 
C)  amino acids can polymerize into polypeptides. 
D)  nucleotides can polymerize into nucleic acids.

Question 16

Living cells are commonly visualized by means of _______ microscopy.

Accepted Answer

A)  phase-contrast 
B)  bright-field 
C)  fluorescence 
D)  electron 
A)  phase-contrast 
B)  bright-field 
C)  fluorescence 
D)  electron

Question 17

Specific proteins can be localized in the transmission electron microscope by use of

Accepted Answer

A)  positive staining. 
B)  negative staining. 
C)  fluorescent-labeled antibodies. 
D)  gold-labeled antibodies. 
A)  positive staining. 
B)  negative staining. 
C)  fluorescent-labeled antibodies. 
D)  gold-labeled antibodies.

Question 18

Which of the following experimental approaches would be useful for studying protein-protein interactions within a cell?

Accepted Answer

A)  Differential interference-contrast microscopy 
B)  Differential centrifugation 
C)  Fluorescence pulse field gel electrophoresis (FPFG
E)  
D)  Fluorescence resonance energy transfer (FRET) 
A)  Differential interference-contrast microscopy 
B)  Differential centrifugation 
C)  Fluorescence pulse field gel electrophoresis (FPFG
E)  
D)  Fluorescence resonance energy transfer (FRET)

Question 19

Super-resolution light microscopes extend the resolution limits of light microscopy to

Accepted Answer

A)  0.2 to 0.5 mm. 
B)  0.2 to 0.5 μm. 
C)  20 to 100 nm. 
D)  20 to 100 Å. 
A)  0.2 to 0.5 mm. 
B)  0.2 to 0.5 μm. 
C)  20 to 100 nm. 
D)  20 to 100 Å.

Question 20

Eukaryotes contain a mixture of genes from eubacteria and archaebacteria.

Accepted Answer

A) True 
 B)False

Short generation time is one of the major factors that support using yeast or _______ for many fundamental molecular genetics experiments.

Chloroplasts are thought to have originated from endosymbiosis of _______ by a large host cell.

Yeasts are simple eukaryotes.

In good culture conditions, E. coli typically divides every two hours.

The source of the atmospheric oxygen necessary for the development of oxidative metabolism is thought to have been

Epithelial cells form sheets that cover the surface of the animal body and line internal organs.

The light microscope was used to observe the cellular structure of cork by _______, who named the chambers "cells."

In contrast to yeast or bacterial cells, animal cell cultures are grown on fairly complex media, with added amino acids, vitamins, and/or hormones. This is primarily because animal cells

A single immortalized fibroblast in culture is capable of forming an entire human.

In fluorescence photobleaching experiments, recovery time is defined as the amount of time it takes the bleached area to regain its fluorescence. The recovery time for a cell with fluorescently labeled membrane proteins is

List three significant differences that distinguish prokaryotic cells from eukaryotic cells.

Arabidopsis thaliana is a model organism for studying the molecular biology of

The genome of eukaryotes consists of genes derived from

Stanley Miller applied electric sparks to a reducing atmosphere of methane, ammonia, water, and hydrogen, and the resulting products showed that under these conditions,

Living cells are commonly visualized by means of _______ microscopy.

Specific proteins can be localized in the transmission electron microscope by use of

Which of the following experimental approaches would be useful for studying protein-protein interactions within a cell?

Super-resolution light microscopes extend the resolution limits of light microscopy to

Eukaryotes contain a mixture of genes from eubacteria and archaebacteria.

Molecules and Membranes

Bioenergetics and Metabolism

Fundamentals of Molecular Biology

Genomics, Proteomics, and Systems Biology

Genes and Genomes

Replication, Maintenance, and Rearrangements of Genomic Dna

RNA Synthesis and Processing

Transcriptional Regulation and Epigenetics

Protein Synthesis, Processing, and Regulation

The Nucleus

Protein Sorting and Transport

Mitochondria, Chloroplasts, and Peroxisomes

The Cytoskeleton and Cell Movement

The Plasma Membrane

Cell Walls, the Extracellular Matrix, and Cell Interactions

Cell Signaling

The Cell Cycle

Cell Death and Cell Renewal

Cancer

Filters

Exam 1: An Overview of Cells and Cell Research

Short generation time is one of the major factors that support using yeast or _______ for many fundamental molecular genetics experiments.

Chloroplasts are thought to have originated from endosymbiosis of _______ by a large host cell.

Yeasts are simple eukaryotes.

In good culture conditions, E. coli typically divides every two hours.

The source of the atmospheric oxygen necessary for the development of oxidative metabolism is thought to have been

Epithelial cells form sheets that cover the surface of the animal body and line internal organs.

The light microscope was used to observe the cellular structure of cork by _______, who named the chambers "cells."

In contrast to yeast or bacterial cells, animal cell cultures are grown on fairly complex media, with added amino acids, vitamins, and/or hormones. This is primarily because animal cells

A single immortalized fibroblast in culture is capable of forming an entire human.

In fluorescence photobleaching experiments, recovery time is defined as the amount of time it takes the bleached area to regain its fluorescence. The recovery time for a cell with fluorescently labeled membrane proteins is

List three significant differences that distinguish prokaryotic cells from eukaryotic cells.

Arabidopsis thaliana is a model organism for studying the molecular biology of

The genome of eukaryotes consists of genes derived from

Stanley Miller applied electric sparks to a reducing atmosphere of methane, ammonia, water, and hydrogen, and the resulting products showed that under these conditions,

Living cells are commonly visualized by means of _______ microscopy.

Specific proteins can be localized in the transmission electron microscope by use of

Which of the following experimental approaches would be useful for studying protein-protein interactions within a cell?

Super-resolution light microscopes extend the resolution limits of light microscopy to

Eukaryotes contain a mixture of genes from eubacteria and archaebacteria.

Molecules and Membranes

Bioenergetics and Metabolism

Fundamentals of Molecular Biology

Genomics, Proteomics, and Systems Biology

Genes and Genomes

Replication, Maintenance, and Rearrangements of Genomic Dna

RNA Synthesis and Processing

Transcriptional Regulation and Epigenetics

Protein Synthesis, Processing, and Regulation

The Nucleus

Protein Sorting and Transport

Mitochondria, Chloroplasts, and Peroxisomes

The Cytoskeleton and Cell Movement

The Plasma Membrane

Cell Walls, the Extracellular Matrix, and Cell Interactions

Cell Signaling

The Cell Cycle

Cell Death and Cell Renewal

Cancer

Filters