Question 1

Some membrane proteins are not embedded within the lipid bilayer but are instead anchored loosely to either the inner or the outer surface.Such proteins are called _________ proteins.

Accepted Answer

The answer of Some membrane proteins are not embedded within...

Question 2

The duplicated chromosome that appears during prophase consists of two genetically identical structures called sister ________________.

Accepted Answer

The answer of The duplicated chromosome that appears during prophase...

Question 3

The cytoskeleton has three separate components: microfilaments,intermediate filaments,and ______________.

Accepted Answer

The answer of The cytoskeleton has three separate components: microfilaments,intermediate...

Question 4

All cells must obtain nutrients,form new chemical structures,and dispose of waste molecules.

Accepted Answer

A) True 
 B)False

Question 5

Exocytosis is a form of secondary active transport.

Accepted Answer

A) True 
 B)False

Question 6

Which of the following structures function in holding organelles in place,maintaining cell shape and rigidity,and directing organelle movement

Accepted Answer

A)  Centrioles
B)  Flagella
C)  Golgi apparatus
D)  Microtubules
E)  CiliaF) None of the above
G) B) and E)

Question 7

The potential across a cell membrane has changed drastically,from -90mV to +30mV.In other words,

Accepted Answer

A)  there is a postive charge on the inside of the cell,relative to the outside.
B)  there is a negative charge on the inside of the cell,relative to the outside.
C)  the resting membrane potential has been established.
D)  there is no relative charge difference between the inside and the outside of the cell.E) B) and D)
F) None of the above

Question 8

In order to process digested nutrients and detoxify chemical agents such as drugs and alcohol,the ______ contains abundant amounts of smooth ER.

Accepted Answer

A)  liver
B)  kidney
C)  small intestine
D)  pancreas
E)  stomachF) C) and D)
G) A) and E)

Question 9

What unit of measurement is often used to measure cell size

Accepted Answer

A)  Millimeter
B)  Micrometer
C)  Hectometer
D)  CentimeterE) All of the above
F) A) and C)

Question 10

During transcription

Accepted Answer

A)  an RNA molecule is formed as a DNA sequence is read.
B)  a protein is formed as a DNA sequence is read.
C)  a DNA sequence is formed as a RNA sequence is read.
D)  an amino acid is transferred to a ribosome as a DNA sequence is read.
E)  a protein is formed as a RNA sequence is read.F) A) and C)
G) B) and D)

Question 11

Identify the organelle that provides enzymes for autolysis.

Accepted Answer

A)  Peroxisomes
B)  Mitochondria
C)  Smooth ER
D)  Golgi apparatus
E)  LysosomesF) A) and B)
G) B) and D)

Question 12

The process of reading an mRNA molecule and synthesizing a protein is known as __________.

Accepted Answer

The answer of The process of reading an mRNA molecule...

Question 13

In _____________ transport,substances move across a plasma membrane without the expenditure of energy by the cell.

Accepted Answer

The answer of In _____________ transport,substances move across a plasma...

Question 14

Under normal conditions and when a cell is at "rest," there is more potassium in the cytosol than in the extracellular fluid.

Accepted Answer

A) True 
 B)False

Question 15

Which is a passive transport process

Accepted Answer

A)  Phagocytosis
B)  Pinocytosis
C)  Receptor-mediated endocytosis
D)  Osmosis
E)  Ion pumpF) B) and C)
G) B) and E)

Question 16

_________ are barrel-shaped,protein-digesting organelles in both the nucleus and the cytoplasm.

Accepted Answer

The answer of _________ are barrel-shaped,protein-digesting organelles in both the...

Question 17

Channel-linked receptors are also known as __________ gated channels.

Accepted Answer

The answer of Channel-linked receptors are also known as __________...

Question 18

The sodium-potassium ATPase functions by performing

Accepted Answer

A)  primary active transport.
B)  secondary active transport.
C)  exocytosis.
D)  both exocytosis and endocytosis.
E)  receptor-mediated endocytosis.F) A) and E)
G) None of the above

Question 19

_____________ ribosomes are responsible for the synthesis of proteins that remain within the cell.

Accepted Answer

The answer of _____________ ribosomes are responsible for the synthesis...

Question 20

Which is a non-membrane-bound organelle

Accepted Answer

A)  Microtubule
B)  Lysosome
C)  Golgi apparatus
D)  Rough endoplasmic reticulum
E)  MitochondrionF) A) and C)
G) B) and E)

Exam 4: Biology of the Cell

The process of reading an mRNA molecule and synthesizing a protein is known as __________.

Correct AnswerverifiedShow Answer

Which of the following structures function in holding organelles in place,maintaining cell shape and rigidity,and directing organelle movement

Correct AnswerverifiedShow Answer

Identify the organelle that provides enzymes for autolysis.

Correct AnswerverifiedShow Answer

The duplicated chromosome that appears during prophase consists of two genetically identical structures called sister ________________.

Correct AnswerverifiedShow Answer

The potential across a cell membrane has changed drastically,from -90mV to +30mV.In other words,

Correct AnswerverifiedShow Answer

In _____________ transport,substances move across a plasma membrane without the expenditure of energy by the cell.

Correct AnswerverifiedShow Answer

Which is a passive transport process

Correct AnswerverifiedShow Answer

The sodium-potassium ATPase functions by performing

Correct AnswerverifiedShow Answer

Under normal conditions and when a cell is at "rest," there is more potassium in the cytosol than in the extracellular fluid.

Correct AnswerverifiedShow Answer

Which is a non-membrane-bound organelle

Correct AnswerverifiedShow Answer

During transcription

Correct AnswerverifiedShow Answer

Exocytosis is a form of secondary active transport.

Correct AnswerverifiedShow Answer

The cytoskeleton has three separate components: microfilaments,intermediate filaments,and ______________.

Correct AnswerverifiedShow Answer

_________ are barrel-shaped,protein-digesting organelles in both the nucleus and the cytoplasm.

Correct AnswerverifiedShow Answer

What unit of measurement is often used to measure cell size

Correct AnswerverifiedShow Answer

Channel-linked receptors are also known as __________ gated channels.

Correct AnswerverifiedShow Answer

In order to process digested nutrients and detoxify chemical agents such as drugs and alcohol,the ______ contains abundant amounts of smooth ER.

Correct AnswerverifiedShow Answer

Some membrane proteins are not embedded within the lipid bilayer but are instead anchored loosely to either the inner or the outer surface.Such proteins are called _________ proteins.

Correct AnswerverifiedShow Answer

_____________ ribosomes are responsible for the synthesis of proteins that remain within the cell.

Correct AnswerverifiedShow Answer

All cells must obtain nutrients,form new chemical structures,and dispose of waste molecules.

Correct AnswerverifiedShow Answer

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