Question 1

_______ cells, the most commonly used cell line, were derived from a biopsy of a tumor carried by Henrietta Lacks.

Accepted Answer

The answer of _______ cells, the most commonly used cell...

Question 2

Studies on which model organism led to the initial discovery of important mechanisms controlling the development of the animal body plan?

Accepted Answer

A)  Mice 
B)  Drosophila melanogaster 
C)  Xenopus laevis 
D)  Yeast 
A)  Mice 
B)  Drosophila melanogaster 
C)  Xenopus laevis 
D)  Yeast

Question 3

The cell lineage that eventually became the plants acquired _______before acquiring _______.

Accepted Answer

mitochondr

Question 4

In visualizing protein localization within a cell, what are the relative advantages and disadvantages of tagging proteins with green fluorescent protein (GFP) versus using a fluorescent antibody specific to the protein of interest (immunofluorescence)?

Accepted Answer

The main advantage of using GFP-tagged p

Question 5

At the time life arose on Earth, Earth's atmosphere contained abundant amounts of all of the following except

Accepted Answer

A)  H2. 
B)  N2. 
C)  O2. 
D)  H2S. 
A)  H2. 
B)  N2. 
C)  O2. 
D)  H2S.

Question 6

Normal human fibroblasts can be grown only for 50-100 doublings in culture, after which they stop growing and die.

Accepted Answer

A) True 
 B)False

Question 7

Organisms that evolved the ability to use H2O as a donor of electrons and hydrogen for the photosynthetic conversion of CO2 to organic compounds radically changed Earth by producing

Accepted Answer

A)  sugar. 
B)  cellulose. 
C)  H2. 
D)  O2. 
A)  sugar. 
B)  cellulose. 
C)  H2. 
D)  O2.

Question 8

The original cell was thought to have arisen from the enclosure of self-replicating _______ by a phospholipid membrane.

Accepted Answer

A)  DNA 
B)  carbohydrate 
C)  protein 
D)  RNA 
A)  DNA 
B)  carbohydrate 
C)  protein 
D)  RNA

Question 9

Totipotency is a term that is often applied to cells in a plant callus tissue in culture and might by extension be applied to embryonic stem cells from animals. With appropriate manipulation of nutrients and growth regulatory molecules, an entire plant can be regenerated from a single cell within a callus. Taking this as an example of the developmental potential of a single plant cell, define the term "totipotency."

Accepted Answer

Totipotency is the ability of a somatic

Question 10

Solid tissues in animals include epithelial tissue, _______ tissue, nervous tissue, and muscle.

Accepted Answer

A)  blood 
B)  connective 
C)  ground 
D)  epidermal 
A)  blood 
B)  connective 
C)  ground 
D)  epidermal

Question 11

Freeze fracture splits lipid bilayers and allows examination of the distribution of proteins that span the bilayer.

Accepted Answer

A) True 
 B)False

Question 12

Most laboratories make use of cultured cells to study human disease. What makes these cultured cells such useful models?

Accepted Answer

A)  Cells only function when they are not organized into tissues. 
B)  Cells cultured in the lab behave exactly the same as cells in the human body. 
C)  Cells are very inexpensive to grow. 
D)  They provide a continuous and uniform source of new cells. 
A)  Cells only function when they are not organized into tissues. 
B)  Cells cultured in the lab behave exactly the same as cells in the human body. 
C)  Cells are very inexpensive to grow. 
D)  They provide a continuous and uniform source of new cells.

Question 13

The adult nematode worm Caenorhabditis elegans consists of _______ somatic cells.

Accepted Answer

A)  95 
B)  959 
C)  1,500 
D)  9,590 
A)  95 
B)  959 
C)  1,500 
D)  9,590

Question 14

Which energy-producing process is thought to have come first during cellular evolution?

Accepted Answer

A)  Photosynthesis 
B)  Glycolysis 
C)  Oxidative phosphorylation 
D)  Proteolysis 
A)  Photosynthesis 
B)  Glycolysis 
C)  Oxidative phosphorylation 
D)  Proteolysis

Question 15

Transmission electron microscopy is used to

Accepted Answer

A)  study the shapes of whole cells in single, thin sections. 
B)  view living cells in three dimensions. 
C)  view fluorescently labeled proteins in cells. 
D)  observe subcellular organelles and macromolecules. 
A)  study the shapes of whole cells in single, thin sections. 
B)  view living cells in three dimensions. 
C)  view fluorescently labeled proteins in cells. 
D)  observe subcellular organelles and macromolecules.

Question 16

Why have viruses been so useful in the elucidation of cellular processes?

Accepted Answer

Unlike bacteria, which can grow and divi

Question 17

Why must the development of photosynthesis have preceded the development of oxidative phosphorylation?

Accepted Answer

The major source of oxygen in Earth's at

Question 18

A common use of green fluorescent protein (GFP) is to

Accepted Answer

A)  label antibodies. 
B)  visualize proteins in living cells. 
C)  photobleach other fluorescent proteins. 
D)  label DNA sequences. 
A)  label antibodies. 
B)  visualize proteins in living cells. 
C)  photobleach other fluorescent proteins. 
D)  label DNA sequences.

Question 19

Model systems such as Caenorhabditis elegans, Drosophila melanogaster, and zebrafish are especially useful for studying problems in cell differentiation and developmental biology because, in contrast to single cells such as E. coli and yeast, they are _______ systems.

Accepted Answer

multicellu

Question 20

The two major groups of prokaryotic cells are the _______ and the _______, which diverged early in evolution.

Accepted Answer

archaebact

_______ cells, the most commonly used cell line, were derived from a biopsy of a tumor carried by Henrietta Lacks.

Studies on which model organism led to the initial discovery of important mechanisms controlling the development of the animal body plan?

The cell lineage that eventually became the plants acquired _before acquiring _.

In visualizing protein localization within a cell, what are the relative advantages and disadvantages of tagging proteins with green fluorescent protein (GFP) versus using a fluorescent antibody specific to the protein of interest (immunofluorescence)?

At the time life arose on Earth, Earth's atmosphere contained abundant amounts of all of the following except

Normal human fibroblasts can be grown only for 50-100 doublings in culture, after which they stop growing and die.

Organisms that evolved the ability to use H₂O as a donor of electrons and hydrogen for the photosynthetic conversion of CO₂ to organic compounds radically changed Earth by producing

The original cell was thought to have arisen from the enclosure of self-replicating _______ by a phospholipid membrane.

Solid tissues in animals include epithelial tissue, _______ tissue, nervous tissue, and muscle.

Freeze fracture splits lipid bilayers and allows examination of the distribution of proteins that span the bilayer.

Most laboratories make use of cultured cells to study human disease. What makes these cultured cells such useful models?

The adult nematode worm Caenorhabditis elegans consists of _______ somatic cells.

Which energy-producing process is thought to have come first during cellular evolution?

Transmission electron microscopy is used to

Why have viruses been so useful in the elucidation of cellular processes?

Why must the development of photosynthesis have preceded the development of oxidative phosphorylation?

A common use of green fluorescent protein (GFP) is to

Model systems such as Caenorhabditis elegans, Drosophila melanogaster, and zebrafish are especially useful for studying problems in cell differentiation and developmental biology because, in contrast to single cells such as E. coli and yeast, they are _______ systems.

The two major groups of prokaryotic cells are the _ and the _, which diverged early in evolution.

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

_______ cells, the most commonly used cell line, were derived from a biopsy of a tumor carried by Henrietta Lacks.

Studies on which model organism led to the initial discovery of important mechanisms controlling the development of the animal body plan?

The cell lineage that eventually became the plants acquired _______before acquiring _______.

In visualizing protein localization within a cell, what are the relative advantages and disadvantages of tagging proteins with green fluorescent protein (GFP) versus using a fluorescent antibody specific to the protein of interest (immunofluorescence)?

At the time life arose on Earth, Earth's atmosphere contained abundant amounts of all of the following except

Normal human fibroblasts can be grown only for 50-100 doublings in culture, after which they stop growing and die.

Organisms that evolved the ability to use H2O as a donor of electrons and hydrogen for the photosynthetic conversion of CO2 to organic compounds radically changed Earth by producing

The original cell was thought to have arisen from the enclosure of self-replicating _______ by a phospholipid membrane.

Solid tissues in animals include epithelial tissue, _______ tissue, nervous tissue, and muscle.

Freeze fracture splits lipid bilayers and allows examination of the distribution of proteins that span the bilayer.

Most laboratories make use of cultured cells to study human disease. What makes these cultured cells such useful models?

The adult nematode worm Caenorhabditis elegans consists of _______ somatic cells.

Which energy-producing process is thought to have come first during cellular evolution?

Transmission electron microscopy is used to

Why have viruses been so useful in the elucidation of cellular processes?

Why must the development of photosynthesis have preceded the development of oxidative phosphorylation?

A common use of green fluorescent protein (GFP) is to

Model systems such as Caenorhabditis elegans, Drosophila melanogaster, and zebrafish are especially useful for studying problems in cell differentiation and developmental biology because, in contrast to single cells such as E. coli and yeast, they are _______ systems.

The two major groups of prokaryotic cells are the _______ and the _______, which diverged early in evolution.

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

The cell lineage that eventually became the plants acquired _before acquiring _.

Organisms that evolved the ability to use H₂O as a donor of electrons and hydrogen for the photosynthetic conversion of CO₂ to organic compounds radically changed Earth by producing

The two major groups of prokaryotic cells are the _ and the _, which diverged early in evolution.