Question 1

If organelles are able to divide and reproduce themselves like a cell those most likely to have this ability would be

Accepted Answer

A)  mitochondria only.
B)  chloroplasts only.
C)  peroxisomes only.
D)  both mitochondria and chloroplasts.
E)  mitochondria,chloroplasts,and lysosomes.F) A) and E)
G) A) and D)

Question 2

Fluorescence microscopy enables researchers to label and visualize a particular type of cellular protein or organelle.

Accepted Answer

A) True 
 B)False

Question 3

Unlike animals,plants lack a cell junction where small molecules can move from one cell to another cell.

Accepted Answer

A) True 
 B)False

Question 4

Materials move in and out of the nucleus via endocytosis and exocytosis.

Accepted Answer

A) True 
 B)False

Question 5

The general structural and functional differences between a nerve and smooth muscle cell within an individual are a result of

Accepted Answer

A)  the proteome (proteins in a cell) that differ between muscle and nerve cells.
B)  the genome (DNA in a cell) being different between muscle and nerve cells.
C)  the relative amounts of certain proteins between muscle and nerve cells.
D)  the proteome and the relative amounts of certain proteins that differ between muscle and nerve cells.
E)  the genome and the relative amounts of certain proteins that differ between muscle and nerve cells.F) None of the above
G) A) and D)

Question 6

All plant cells contain centrioles.

Accepted Answer

A) True 
 B)False

Question 7

Signals can be sent from the ECM to the cell through _____.

Accepted Answer

A)  connexins
B)  cadherins
C)  integrins
D)  claudins
E)  fibronectinsF) A) and D)
G) A) and C)

Question 8

Some cells alter their surface area to volume ratio by increasing their size or altering their shape.A classic example of this change is

Accepted Answer

A)  cuboidal epithelial cells.
B)  squamous cells.
C)  neutrophil cells.
D)  microvilli covered intestinal cells.
E)  cytotoxic T cells.F) B) and D)
G) C) and D)

Question 9

You inject a dye into a eukaryotic cell to detect a specific functional enzyme in the cytosol.Where would you need to inject the dye and what function might the enzyme have?

Accepted Answer

A)  You would have to inject the dye into the membrane of the rough ER;the enzyme's function could be synthesis of lipids.
B)  The dye would go between the plasma membrane and membrane of the organelles;the enzyme may be associated with glycolysis.
C)  Injection of the dye must occur in the inner membrane space of the mitochondria;the enzyme may be part of the electron transport chain.
D)  The Golgi apparatus holds the cytosol,and therefore the dye must be injected there;the enzyme may assist with protein packaging.E) All of the above
F) None of the above

Question 10

Prokaryotes such as bacteria cells differ from eukaryotes in that prokaryotes

Accepted Answer

A)  lack a membrane-bound nucleus.
B)  DNA is located within the cytosol.
C)  have a simpler structure relative to eukaryotes.
D)  possess membrane-bound organelles.
E)  they are relatively small compared with eukaryotes.F) B) and C)
G) A) and E)

Question 11

Myosin is a motor protein that walks along intermediate filaments.

Accepted Answer

A) True 
 B)False

Question 12

The signal recognition particle (SRP)

Accepted Answer

A)  binds to a receptor in the smooth endoplasmic reticulum (ER) .
B)  docks with the ribosome over a rough ER channel protein.
C)  helps a vesicle to bud from the rough ER.
D)  recognizes the ER signal sequence.
E)  places proteins in the cytoplasm.F) A) and C)
G) None of the above

Question 13

Eukaryotes such as animal and plants cells differ from prokaryotes in that prokaryotes

Accepted Answer

A)  lack a true nucleus.
B)  lack true DNA.
C)  use the cells membrane rather than ribosomes for making proteins.
D)  contain numerous organelles.
E)  undergo sexual reproduction.F) All of the above
G) A) and E)

Question 14

In animals,_____ is largely composed of extracellular matrix.

Accepted Answer

A)  intestine
B)  muscle
C)  cartilage
D)  kidney
E)  eyeF) B) and D)
G) B) and E)

Question 15

Due to the lack of an enzyme to break down lipids,excess accumulation of lipids in the brain leads to a human disease called Tay Sachs syndrome.The organelle most likely to lack the proper enzyme needed for lipid breakdown is

Accepted Answer

A)  lysosomes.
B)  tonoplasts.
C)  mitochondrion.
D)  Golgi apparatus.
E)  peroxisomes.F) C) and E)
G) A) and E)

Question 16

The bones and cartilage in animals serve the same function as ________ in plants?

Accepted Answer

A)  phloem
B)  capillaries
C)  leaves
D)  xylem
E)  woodF) A) and B)
G) B) and C)

Question 17

The major macromolecules of the ECM are _____

Accepted Answer

A)  fat and nucleotides.
B)  fat and proteins.
C)  nucleotides and proteins.
D)  polysaccharides and proteins.
E)  polysaccharides and fat.F) A) and E)
G) A) and D)

Question 18

In eukaryotes,most proteins contain short stretches of amino acid sequences called sorting signals which direct the protein to the correct cellular location.

Accepted Answer

A) True 
 B)False

Question 19

What organelle and function pair can best explain their ability to divide?

Accepted Answer

A)  Chloroplasts and peroxisomes because they both have their own DNA.
B)  Mitochondria and chloroplasts due to their association with endosymbiosis theory.
C)  Ribosomes and mitochondria as each is a result of regression theory.
D)  Peroxisomes and lysosomes are both derived from engulfed bacteria.E) A) and C)
F) A) and B)

Question 20

Some tissues need to be able to expand and contract,such lungs during breathing and intestines during digestion.Predict which ECM protein would be abundant in these tissues.

Accepted Answer

A)  laminin
B)  glycosaminoglycans
C)  collagen
D)  elastin
E)  fibronectinF) B) and D)
G) B) and C)

Exam 4: General Features of Cells

The signal recognition particle (SRP)

Correct AnswerverifiedShow Answer

Eukaryotes such as animal and plants cells differ from prokaryotes in that prokaryotes

Correct AnswerverifiedShow Answer

Signals can be sent from the ECM to the cell through _____.

Correct AnswerverifiedShow Answer

What organelle and function pair can best explain their ability to divide?

Correct AnswerverifiedShow Answer

All plant cells contain centrioles.

Correct AnswerverifiedShow Answer

You inject a dye into a eukaryotic cell to detect a specific functional enzyme in the cytosol.Where would you need to inject the dye and what function might the enzyme have?

Correct AnswerverifiedShow Answer

Some tissues need to be able to expand and contract,such lungs during breathing and intestines during digestion.Predict which ECM protein would be abundant in these tissues.

Correct AnswerverifiedShow Answer

Fluorescence microscopy enables researchers to label and visualize a particular type of cellular protein or organelle.

Correct AnswerverifiedShow Answer

If organelles are able to divide and reproduce themselves like a cell those most likely to have this ability would be

Correct AnswerverifiedShow Answer

Some cells alter their surface area to volume ratio by increasing their size or altering their shape.A classic example of this change is

Correct AnswerverifiedShow Answer

Due to the lack of an enzyme to break down lipids,excess accumulation of lipids in the brain leads to a human disease called Tay Sachs syndrome.The organelle most likely to lack the proper enzyme needed for lipid breakdown is

Correct AnswerverifiedShow Answer

The major macromolecules of the ECM are _____

Correct AnswerverifiedShow Answer

The general structural and functional differences between a nerve and smooth muscle cell within an individual are a result of

Correct AnswerverifiedShow Answer

The bones and cartilage in animals serve the same function as ________ in plants?

Correct AnswerverifiedShow Answer

Materials move in and out of the nucleus via endocytosis and exocytosis.

Correct AnswerverifiedShow Answer

Prokaryotes such as bacteria cells differ from eukaryotes in that prokaryotes

Correct AnswerverifiedShow Answer

In eukaryotes,most proteins contain short stretches of amino acid sequences called sorting signals which direct the protein to the correct cellular location.

Correct AnswerverifiedShow Answer

In animals,_____ is largely composed of extracellular matrix.

Correct AnswerverifiedShow Answer

Unlike animals,plants lack a cell junction where small molecules can move from one cell to another cell.

Correct AnswerverifiedShow Answer

Myosin is a motor protein that walks along intermediate filaments.

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified