Question 1

Compare and contrast primary and secondary active transport.

Accepted Answer

Both are energy requiring transport proc...

Question 2

Which of the following membrane-enclosed organelles can engulf a worn-out organelle,digest its chemical components,and recycle those digested components?

Accepted Answer

A)  peroxisomes
B)  mitochondria
C)  proteasome
D)  ribosomes
E)  lysosomes

Question 3

Which of the following transport processes moves substances through cells using endocytosis on one side of a cell and exocytosis on the opposite side of the cell?

Accepted Answer

A)  phagocytosis
B)  secondary active transport
C)  transcytosis
D)  osmosis
E)  simple diffusion

Question 4

In the diagram,which panel shows events occurring during anaphase?

Accepted Answer

A)  A
B)  B
C)  C
D)  D
E)  E

Question 5

Which of the following transport processes uses vesicles that fuse with the plasma membrane to secrete materials into the extracellular fluid?

Accepted Answer

A)  endocytosis
B)  exocytosis
C)  facilitated diffusion
D)  osmosis
E)  Both endocytosis and exocytosis.

Question 6

Which of the following types of membrane proteins function by recognizing and binding to hormones and neurotransmitters?

Accepted Answer

A)  transporters
B)  receptors
C)  enzymes
D)  linkers
E)  cell identification markers

Question 7

During this phase of cell division,the centromeres split leading to separation and subsequent migration of the two members of a chromatid pair to opposite poles of the cells.The cleavage furrow also begins to develop during this phase.

Accepted Answer

A)  interphase
B)  prophase
C)  metaphase
D)  anaphase
E)  telophase

Question 8

Which of the following does NOT influence the rate of diffusion of a chemical across a plasma membrane?

Accepted Answer

A)  concentration gradient of the chemical across the membrane
B)  mass of the diffusing chemical
C)  distance that the chemical has to diffuse
D)  amount of ATP available
E)  temperature

Question 9

What other organelle besides the nucleus contain DNA?

Accepted Answer

A)  Golgi complex
B)  lysosome
C)  ribosomes
D)  mitochondrion
E)  centrosome

Question 10

This type of membrane protein anchors cells to neighboring cells and to protein filaments found outside or inside the cell.

Accepted Answer

A)  transporters
B)  receptors
C)  ligands
D)  ion channels
E)  linkers

Question 11

Briefly explain the difference between transcription and translation.

Accepted Answer

Transcription is making mRNA from DNA and it occurs in the nucleus,while translation is making a protein from the information in mRNA and happens in the cytosol of the cell.
Question

Question 12

The following is a particular sequence of base triplet on a DNA molecule: ATG.What is the corresponding codon for the mRNA?

Accepted Answer

A)  TAC
B)  GUA
C)  GTA
D)  CTA
E)  UAC

Question 13

The following is a particular sequence of codon on mRNA: ACU.What is the corresponding anti-codon for the tRNA?

Accepted Answer

A)  UGA
B)  UCA
C)  TGA
D)  TCA
E)  AUC A

Question 14

The difference in concentration of a specific chemical,like Na+,on the inside and outside of a plasma is referred as a(n)

Accepted Answer

A)  electrochemical potential.
B)  membrane potential.
C)  electrical gradient.
D)  concentration gradient.
E)  biological capacitance.

Question 15

Microfilaments,intermediate filaments and microtubules are all components of a cell's

Accepted Answer

A)  cytoskeleton.
B)  nucleus.
C)  plasma membrane.
D)  flagella.
E)  ribosome. A

Question 16

Describe briefly what is occurring at each step in the figure.

Accepted Answer

This figure represents protein synthesis...

Question 17

The major function of mitochondria is to

Accepted Answer

A)  move the cell.
B)  generate ATP.
C)  produce proteins.
D)  oxidize organelles.
E)  synthesize glycolipids.

Question 18

In this type of transport process,a solute (e.g.glucose) binds to a specific carrier protein on one side of the membrane.This binding induces a conformational change in the carrier protein that results in the solute moving down its concentration gradient to the other side of the membrane.

Accepted Answer

A)  osmosis
B)  active transport
C)  secondary active transport
D)  facilitated diffusion
E)  endocytosis

Question 19

What are the three main parts of a eukaryotic cell?

Accepted Answer

A)  plasma membrane,organelles,cytoplasm
B)  plasma membrane,organelles,nucleus
C)  plasma membrane,cytoplasm,organelles
D)  plasma membrane,cytoplasm,nucleus
E)  plasma membrane,cytosol,organelles

Question 20

Specialized structures within a cell that have a characteristic shape and perform specific functions in cellular growth,maintenance and reproduction are called

Accepted Answer

A)  organelles.
B)  cytoskeletons.
C)  cytoplasm.
D)  cytosol.
E)  nuclei.

Exam 3: The Cellular Level of Organization

Compare and contrast primary and secondary active transport.

Correct AnswerverifiedBoth are energy requiring transport proc...View AnswerShow Answer

Which of the following membrane-enclosed organelles can engulf a worn-out organelle,digest its chemical components,and recycle those digested components?

Correct AnswerverifiedShow Answer

Which of the following transport processes moves substances through cells using endocytosis on one side of a cell and exocytosis on the opposite side of the cell?

Correct AnswerverifiedShow Answer

In the diagram,which panel shows events occurring during anaphase?

Correct AnswerverifiedShow Answer

Which of the following transport processes uses vesicles that fuse with the plasma membrane to secrete materials into the extracellular fluid?

Correct AnswerverifiedShow Answer

Which of the following types of membrane proteins function by recognizing and binding to hormones and neurotransmitters?

Correct AnswerverifiedShow Answer

During this phase of cell division,the centromeres split leading to separation and subsequent migration of the two members of a chromatid pair to opposite poles of the cells.The cleavage furrow also begins to develop during this phase.

Correct AnswerverifiedShow Answer

Which of the following does NOT influence the rate of diffusion of a chemical across a plasma membrane?

Correct AnswerverifiedShow Answer

What other organelle besides the nucleus contain DNA?

Correct AnswerverifiedShow Answer

This type of membrane protein anchors cells to neighboring cells and to protein filaments found outside or inside the cell.

Correct AnswerverifiedShow Answer

Briefly explain the difference between transcription and translation.

Correct AnswerverifiedTranscription is making mRNA from DNA and it occurs in the nucleus,while translation is making a protein from the information in mRNA and happens in the cytosol of the cell. Question

The following is a particular sequence of base triplet on a DNA molecule: ATG.What is the corresponding codon for the mRNA?

Correct AnswerverifiedShow Answer

The following is a particular sequence of codon on mRNA: ACU.What is the corresponding anti-codon for the tRNA?

Correct AnswerverifiedA

The difference in concentration of a specific chemical,like Na+,on the inside and outside of a plasma is referred as a(n)

Correct AnswerverifiedShow Answer

Microfilaments,intermediate filaments and microtubules are all components of a cell's

Correct AnswerverifiedA

Describe briefly what is occurring at each step in the figure.

Correct AnswerverifiedThis figure represents protein synthesis...View AnswerShow Answer

The major function of mitochondria is to

Correct AnswerverifiedShow Answer

In this type of transport process,a solute (e.g.glucose) binds to a specific carrier protein on one side of the membrane.This binding induces a conformational change in the carrier protein that results in the solute moving down its concentration gradient to the other side of the membrane.

Correct AnswerverifiedShow Answer

What are the three main parts of a eukaryotic cell?

Correct AnswerverifiedShow Answer

Specialized structures within a cell that have a characteristic shape and perform specific functions in cellular growth,maintenance and reproduction are called

Correct AnswerverifiedShow Answer

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Both are energy requiring transport proc...
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Transcription is making mRNA from DNA and it occurs in the nucleus,while translation is making a protein from the information in mRNA and happens in the cytosol of the cell. Question

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This figure represents protein synthesis...
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