Question 1

The cytosol is best described as the

Accepted Answer

A) fluid within the nucleus. 
B) three-dimensional array of interconnected filaments. 
C) semifluid substance in which organelles are suspended. 
D) internal contents of organelles. 
E) area of the cell not occupied by the nucleus. 
A) fluid within the nucleus. 
B) three-dimensional array of interconnected filaments. 
C) semifluid substance in which organelles are suspended. 
D) internal contents of organelles. 
E) area of the cell not occupied by the nucleus.

Question 2

Which of the following diseases is caused by a peroxisomal defect?

Accepted Answer

A) Zellweger syndrome 
B) sickle-cell anemia 
C) Tay-Sachs disease 
D) hypertrophic cardiomyopathy 
E) I-cell disease 
A) Zellweger syndrome 
B) sickle-cell anemia 
C) Tay-Sachs disease 
D) hypertrophic cardiomyopathy 
E) I-cell disease

Question 3

The size range of most plant and animal cells is ________.

Accepted Answer

A) 1-10 nm 
B) 1-5 μm 
C) 10-50 μm 
D) 0.1-0.5 mm 
E) 50-100 mm 
A) 1-10 nm 
B) 1-5 μm 
C) 10-50 μm 
D) 0.1-0.5 mm 
E) 50-100 mm

Question 4

Which of the following is true of plant cells?

Accepted Answer

A) Plant cells may contain chloroplasts. 
B) Plant cells are always much larger than animal cells. 
C) Chromosomes are found only in plant cells. 
D) Only plant cells have a cell membrane. 
E) The plant cell has no cell wall. 
A) Plant cells may contain chloroplasts. 
B) Plant cells are always much larger than animal cells. 
C) Chromosomes are found only in plant cells. 
D) Only plant cells have a cell membrane. 
E) The plant cell has no cell wall.

Question 5

The matrix is to the mitochondrion as the ________ is to the chloroplast.

Accepted Answer

The answer of The matrix is to the mitochondrion as...

Question 6

Which of the following organelles is not generally found in animal cells?

Accepted Answer

A) food vacuole 
B) centriole 
C) endoplasmic reticulum 
D) central vacuole 
E) mitochondrion 
A) food vacuole 
B) centriole 
C) endoplasmic reticulum 
D) central vacuole 
E) mitochondrion

Question 7

Prokaryotes have ________S ribosomes with ________S and ________S subunits,whereas eukaryotes have ________S ribosomes with ________S and ________S subunits.

Accepted Answer

A) 80, 50, 30; 100, 60, 40 
B) 100, 60, 50; 90, 60, 40 
C) 70, 50, 30; 80, 60, 40 
D) 70, 40, 30; 80, 50, 30 
E) 80, 60, 40; 70, 50, 30 
A) 80, 50, 30; 100, 60, 40 
B) 100, 60, 50; 90, 60, 40 
C) 70, 50, 30; 80, 60, 40 
D) 70, 40, 30; 80, 50, 30 
E) 80, 60, 40; 70, 50, 30

Question 8

The ________ are prokaryotes that live in very salty environments.

Accepted Answer

The answer of The ________ are prokaryotes that live in...

Question 9

Lignin is an important component in

Accepted Answer

A) tight junctions. 
B) plant cell walls. 
C) fungal cell walls. 
D) plasmodesmata. 
E) bacterial cell walls. 
A) tight junctions. 
B) plant cell walls. 
C) fungal cell walls. 
D) plasmodesmata. 
E) bacterial cell walls.

Question 10

When the size of a cell increases,the surface area/volume ratio

Accepted Answer

A) decreases initially and then begins to increase. 
B) remains the same. 
C) decreases. 
D) increases initially and then begins to decrease. 
E) increases. 
A) decreases initially and then begins to increase. 
B) remains the same. 
C) decreases. 
D) increases initially and then begins to decrease. 
E) increases.

Question 11

Which of the following organelles is not part of the endomembrane system?

Accepted Answer

A) ribosome 
B) endoplasmic reticulum 
C) Golgi apparatus 
D) lysosome 
E) secretory vesicle 
A) ribosome 
B) endoplasmic reticulum 
C) Golgi apparatus 
D) lysosome 
E) secretory vesicle

Question 12

The ________ is comprised of the fluid portion of the cell and contains the organelles.

Accepted Answer

The answer of The ________ is comprised of the fluid...

Question 13

Kuru is a degenerative disease of the central nervous system believed to be caused by which type of agent?

Accepted Answer

A) virus 
B) bacterium 
C) prion 
D) viroid 
E) protozoan 
A) virus 
B) bacterium 
C) prion 
D) viroid 
E) protozoan

Question 14

________ are infectious RNAs that are responsible for diseases in several crop plants,such as tobacco.

Accepted Answer

The answer of ________ are infectious RNAs that are responsible...

Question 15

The subunits of a ribosome are referred to as being 40S.The "S" refers to ________.

Accepted Answer

Svedberg u

Question 16

In which of the following properties are the Archaea more like eukaryotes than the bacteria?

Accepted Answer

A) size 
B) microtubules and microfilaments 
C) translation initiation 
D) mode of cell division 
E) both choices C and D 
A) size 
B) microtubules and microfilaments 
C) translation initiation 
D) mode of cell division 
E) both choices C and D

Question 17

Several biology students have just returned from a field trip in which they were asked to collect prokaryotes and eukaryotes.The eukaryotic organisms were to be divided into plant cells,animal cells,or "other." The students have access to a light and electron microscope.Can you suggest how they could determine whether these cells are prokaryotic or eukaryotic? How could they distinguish plant from animal cells?

Accepted Answer

The students should list various criteri

Question 18

Which of the following is included as part of the Eubacteria?

Accepted Answer

A) methanogens 
B) thermacidophiles 
C) cyanobacteria 
D) halobacteria 
E) sulfobacteria 
A) methanogens 
B) thermacidophiles 
C) cyanobacteria 
D) halobacteria 
E) sulfobacteria

Question 19

Collagen fibers are to the extracellular matrix as ________ is to the cell wall.

Accepted Answer

The answer of Collagen fibers are to the extracellular matrix...

Exam 4: Cells and Organelles

The cytosol is best described as the

Which of the following diseases is caused by a peroxisomal defect?

The size range of most plant and animal cells is ________.

Which of the following is true of plant cells?

The matrix is to the mitochondrion as the ________ is to the chloroplast.

Which of the following organelles is not generally found in animal cells?

Prokaryotes have ________S ribosomes with ________S and ________S subunits,whereas eukaryotes have ________S ribosomes with ________S and ________S subunits.

The ________ are prokaryotes that live in very salty environments.

Lignin is an important component in

When the size of a cell increases,the surface area/volume ratio

Which of the following organelles is not part of the endomembrane system?

The ________ is comprised of the fluid portion of the cell and contains the organelles.

Kuru is a degenerative disease of the central nervous system believed to be caused by which type of agent?

________ are infectious RNAs that are responsible for diseases in several crop plants,such as tobacco.

The subunits of a ribosome are referred to as being 40S.The "S" refers to ________.

In which of the following properties are the Archaea more like eukaryotes than the bacteria?

Which of the following is included as part of the Eubacteria?

Collagen fibers are to the extracellular matrix as ________ is to the cell wall.

A Preview of the Cell

The Chemistry of the Cell

The Macromolecules of the Cell

Bioenergetics: the Flow of Energy in the Cell

Enzymes: the Catalysts of Life

Membranes: Their Structure, function, and Chemistry

Transport Across Membranes: Overcoming the Permeability Barrier

Chemotrophic Energy Metabolism: Glycolysis and Fermentation

Chemotrophic Energy Metabolism: Aerobic Respiration

Phototrophic Energy Metabolism: Photosynthesis

The Endomembrane System and Peroxisomes

Signal Transduction Mechanisms: Ielectrical and Synaptic Signaling in Neurons

Signal Transduction Mechanisms: Iimessengers and Receptors

Cytoskeletal Systems

Cellular Movement: Motility and Contractility

Beyond the Cell: Cell Adhesions, cell Junctions, and Extracellular Structures

The Structural Basis of Cellular Information: DNA, chromosomes, and the Nucleus

The Cell Cycle, DNA Replication, and Mitosis

Sexual Reproduction, meiosis, and Genetic Recombination

Gene Expression: Ithe Genetic Code and Transcription

Gene Expression: Iiprotein Synthesis and Sorting

The Regulation of Gene Expression

Cancer Cells

Filters

Prokaryotes have S ribosomes with S and S subunits,whereas eukaryotes have S ribosomes with S and S subunits.