Question 1

A protein is destined to be secreted from a cell.In which organelle would you expect to find the protein just after it is produced in the rough endoplasmic reticulum?

Accepted Answer

A) endosome 
B) lysosome 
C) secretory vesicle 
D) Golgi apparatus 
E) nucleus 
A) endosome 
B) lysosome 
C) secretory vesicle 
D) Golgi apparatus 
E) nucleus D

Question 2

Which of the following would be attributed to a peroxisomal dysfunction?

Accepted Answer

A) accumulation of N-acetylglucosamine phosphotransferase 
B) accumulation of ganglioside GM₂ 
C) accumulation of very long chain fatty acids 
D) accumulation of glucocerebroside 
E) accumulation of complex sugars 
A) accumulation of N-acetylglucosamine phosphotransferase 
B) accumulation of ganglioside GM₂ 
C) accumulation of very long chain fatty acids 
D) accumulation of glucocerebroside 
E) accumulation of complex sugars C

Question 3

Which of the following processes would be most likely to occur in the Golgi complex?

Accepted Answer

A) synthesis of steroids 
B) production and packaging of lipids 
C) glycosylation of proteins 
D) synthesis of DNA 
E) detoxification of drugs 
A) synthesis of steroids 
B) production and packaging of lipids 
C) glycosylation of proteins 
D) synthesis of DNA 
E) detoxification of drugs C

Question 4

Currently there is a great deal of scientific debate about whether or not viruses should be considered living organisms.Pick a side on the debate,and defend your position with scientific facts.In your discussion,be sure to include the properties of life and the impact of the taxonomic placement of viroids and prions.

Accepted Answer

Answers will vary; however,the

Question 5

Which of the following is true of a lysosome?

Accepted Answer

A) The lysosome may mature from a late endosome. 
B) The lysosome may function in glycosylation. 
C) The contents of the lysosome originate in the smooth ER. 
D) The lysosome functions in export packaging. 
E) all of the above 
A) The lysosome may mature from a late endosome. 
B) The lysosome may function in glycosylation. 
C) The contents of the lysosome originate in the smooth ER. 
D) The lysosome functions in export packaging. 
E) all of the above

Question 6

Glyoxysomes play an important role in the germination of fat-storing seeds and are considered to be specialized ________.

Accepted Answer

A) peroxisomes 
B) lysosomes 
C) vacuoles 
D) centrioles 
E) ribosomes 
A) peroxisomes 
B) lysosomes 
C) vacuoles 
D) centrioles 
E) ribosomes

Question 7

The pathway that a secretory protein takes from inside to outside is: rough endoplasmic reticulum,________,Golgi complex,________,outside the cell.

Accepted Answer

ER vesicle

Question 8

A(n)________ is composed of tetrameric protofilaments.

Accepted Answer

A) extracellular matrix 
B) microtubule 
C) bacteriophage 
D) microfilament 
E) intermediate filament 
A) extracellular matrix 
B) microtubule 
C) bacteriophage 
D) microfilament 
E) intermediate filament

Question 9

Match between columns
                        Premises: chromoplast
ribosome
nucleus
smooth endoplasmic reticulum
mitochondrion
Golgi complex
rough endoplasmic reticulum
nucleolus
central vacuole
chloroplast
peroxisome
cytoskeleton
plasma membrane
extracellular matrix

Accepted Answer

The Answer of photosynthesis and cell shape and movement of is...

Question 10

Which organelle has only a single membrane around it?

Accepted Answer

A) ribosome 
B) nucleus 
C) mitochondrion 
D) chloroplast 
E) peroxisome 
A) ribosome 
B) nucleus 
C) mitochondrion 
D) chloroplast 
E) peroxisome

Question 11

In your own words and with your own examples,explain fully how cells are limited in size and how some cells have modifications that allow them to be larger or more adapted to a particular function in spite of these limitations.

Accepted Answer

Answers will vary greatly; however,all e

Question 12

The major structural elements of the cytoskeleton are

Accepted Answer

A) the extracellular matrix and the cell wall. 
B) microtubules, microfilaments, and intermediate filaments. 
C) the cytoplasm and cytosol. 
D) cleavage furrows and G-actin. 
E) proteoglycans and cellulose microfibrils. 
A) the extracellular matrix and the cell wall. 
B) microtubules, microfilaments, and intermediate filaments. 
C) the cytoplasm and cytosol. 
D) cleavage furrows and G-actin. 
E) proteoglycans and cellulose microfibrils.

Question 13

Which of the following is not believed to be a virus or to be caused by a virus?

Accepted Answer

A) TMV 
B) AIDS 
C) Epstein-Barr 
D) scrapie 
E) T4 phage 
A) TMV 
B) AIDS 
C) Epstein-Barr 
D) scrapie 
E) T4 phage

Question 14

Which sequence reflects the locations that a secretory protein will visit on its way from its production to its secretion outside the cell?

Accepted Answer

A) rough ER, secretory vesicle, Golgi complex, ER vesicle 
B) rough ER, Golgi complex, smooth ER, ER vesicle 
C) nucleus, Golgi complex, rough or smooth ER, secretory vesicle 
D) smooth ER, rough ER, Golgi complex, secretory vesicle 
E) rough ER, ER vesicle, Golgi complex, secretory vesicle 
A) rough ER, secretory vesicle, Golgi complex, ER vesicle 
B) rough ER, Golgi complex, smooth ER, ER vesicle 
C) nucleus, Golgi complex, rough or smooth ER, secretory vesicle 
D) smooth ER, rough ER, Golgi complex, secretory vesicle 
E) rough ER, ER vesicle, Golgi complex, secretory vesicle

Question 15

A microbiologist has discovered what she thinks are two new types of algae.The first cell (organism 1)appears nearly cubic and is approximately 1.5 μm wide × 1.5 μm long × 1.5 μm deep.The second,longer cell (organism 2)is 2 μm wide × 5 μm long × 2 μm deep.
a.What is the surface area/volume ratio of each organism?
b.Based on what you know about the surface area/volume ratios,which organism will find it more difficult to interact with the surrounding environment?
c.How will this organism cope with the reduced capacity to interact with the environment?

Accepted Answer

a.Organism 1: surface area = 1.5 × 1.5 ×

Question 16

The similarity in the evolutionary origins of mitochondria and chloroplasts has led to the development of the ________,which proposed that they were originally bacteria.

Accepted Answer

The answer of The similarity in the evolutionary origins of...

Question 17

Which of the following diseases is caused by a prion?

Accepted Answer

A) polio 
B) Zellweger syndrome 
C) Tay-Sachs disease 
D) infantile Refsum disease 
E) mad cow disease 
A) polio 
B) Zellweger syndrome 
C) Tay-Sachs disease 
D) infantile Refsum disease 
E) mad cow disease

Question 18

Viroids are characterized by all of the following except

Accepted Answer

A) circular DNA. 
B) well-characterized transmission. 
C) self-replicating. 
D) latent forms exist in some genomes. 
E) associated with plant diseases. 
A) circular DNA. 
B) well-characterized transmission. 
C) self-replicating. 
D) latent forms exist in some genomes. 
E) associated with plant diseases.

Question 19

The smooth endoplasmic reticulum functions in synthesis of

Accepted Answer

A) lipids. 
B) polysaccharides. 
C) proteins. 
D) DNA. 
E) all of the above 
A) lipids. 
B) polysaccharides. 
C) proteins. 
D) DNA. 
E) all of the above

Question 20

Which of the following is not true of a viroid?

Accepted Answer

A) Cadang-cadang is a viroid disease of the coconut palm. 
B) Its RNA is circular. 
C) Its capsid is quite small. 
D) Viroids possess about 250-400 nucleotides. 
E) Viroids affect mostly plants. 
A) Cadang-cadang is a viroid disease of the coconut palm. 
B) Its RNA is circular. 
C) Its capsid is quite small. 
D) Viroids possess about 250-400 nucleotides. 
E) Viroids affect mostly plants.

Exam 4: Cells and Organelles

A protein is destined to be secreted from a cell.In which organelle would you expect to find the protein just after it is produced in the rough endoplasmic reticulum?

Which of the following would be attributed to a peroxisomal dysfunction?

Which of the following processes would be most likely to occur in the Golgi complex?

Which of the following is true of a lysosome?

Glyoxysomes play an important role in the germination of fat-storing seeds and are considered to be specialized ________.

The pathway that a secretory protein takes from inside to outside is: rough endoplasmic reticulum,________,Golgi complex,________,outside the cell.

A(n)________ is composed of tetrameric protofilaments.

Which organelle has only a single membrane around it?

In your own words and with your own examples,explain fully how cells are limited in size and how some cells have modifications that allow them to be larger or more adapted to a particular function in spite of these limitations.

The major structural elements of the cytoskeleton are

Which of the following is not believed to be a virus or to be caused by a virus?

Which sequence reflects the locations that a secretory protein will visit on its way from its production to its secretion outside the cell?

The similarity in the evolutionary origins of mitochondria and chloroplasts has led to the development of the ________,which proposed that they were originally bacteria.

Which of the following diseases is caused by a prion?

Viroids are characterized by all of the following except

The smooth endoplasmic reticulum functions in synthesis of

Which of the following is not true of a viroid?

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

The pathway that a secretory protein takes from inside to outside is: rough endoplasmic reticulum,,Golgi complex,,outside the cell.