Question 1

Which of these is an example of active transport?

Accepted Answer

A)  diffusion of oxygen from a place of high concentration to a place of lower concentration
B)  facilitated diffusion of K+
C)  transport of glucose down its concentration gradient
D)  transport of Na+ from a place of low concentration to a place of higher concentration
E)  transport of Cl- following its concentration gradientF) B) and C)
G) A) and B)

Question 2

Which of the following processes could occur only through the plasma membrane of a living cell?

Accepted Answer

A)  facilitated diffusion
B)  simple diffusion
C)  filtration
D)  osmosis
E)  active transportF) All of the above
G) B) and D)

Question 3

The flat-shaped cells found covering the skin are

Accepted Answer

A)  cuboidal.
B)  columnar.
C)  cylindrical.
D)  squamous.
E)  spherical.F) A) and E)
G) All of the above

Question 4

Transmembrane proteins that make up enzymes in the plasma membrane are made up of hydrophilic and hydrophobic regions.Most amino acids embedded in the membrane are , while most amino acids facing the extracellular fluid are .

Accepted Answer

A)  hydrophilic; hydrophilic
B)  hydrophilic; hydrophobic
C)  hydrophobic; hydrophobic
D)  hydrophobic; hydrophilic
E)  lipophilic; lipophobicF) B) and D)
G) B) and C)

Exam 3: Cellular Form and Function

Which of these is an example of active transport?

Correct Answer
verified

Which of the following processes could occur only through the plasma membrane of a living cell?

Correct Answer
verified

Transmembrane proteins that make up enzymes in the plasma membrane are made up of hydrophilic and hydrophobic regions.Most amino acids embedded in the membrane are , while most amino acids facing the extracellular fluid are .

Correct Answer
verified

The flat-shaped cells found covering the skin are

Correct Answer
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Exam 3: Cellular Form and Function

Which of these is an example of active transport?

Correct AnswerverifiedShow Answer

Which of the following processes could occur only through the plasma membrane of a living cell?

Correct AnswerverifiedShow Answer

Transmembrane proteins that make up enzymes in the plasma membrane are made up of hydrophilic and hydrophobic regions.Most amino acids embedded in the membrane are , while most amino acids facing the extracellular fluid are .

Correct AnswerverifiedShow Answer

The flat-shaped cells found covering the skin are

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
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