Thank you to who ever can help =) For each of the following statements (A to J),

Question

Thank you to who ever can help =)

For each of the following statements (A to J), pick any, all or none of the following options (a, d, c or d) that apply.

a. It is true of simple diffusion

b. It is true of facilitated diffusion

c. It is true of active transport

d. None of the above

A. Requires the presence of an integral membrane protein.

B. Depends primarily on solubility properties of the solute.

C. Doubling the concentration gradient of the molecule to be transported will double the rate of transport over a broad range of concentrations.

D. Involves proteins called ATPases.

E. Work is done during the transport process.

F. Applies only to small, nonpolar solutes.

G. Applies only to ions.

H. G=0.

I. Transport can occur in either direction across the membrane, depending on the prevailing concentration gradient.

J. A Michaelis constant (Km) can be calculated.

Explanation / Answer

A.- Requires the presence of an integral membrane protein

b. It is true of facilitated diffusion

It is true of active transport

Explanation:-Facilitated diffusion and Active transport occurs only through membrane proteins, hence membrane is essential for both of these.

B- Depends primarily on solubility properties of the solute.

. It is true of simple diffusion

solubility is property of a solute to get dissolved in a solvent which holds true only for simple diffusion.

C. Doubling the concentration gradient of the molecule to be transported will double the rate of transport over a broad range of concentrations.

Simple diffusion

in difffusion as we observe if concentration of diffusing particles is increased it increases transport from one place to another for ex. burning of insence sticks.

D. Involves proteins called ATPases.

Active transport

As active transport involves energy in the form of ATP, hence ATPase proteins are involved.

E. Work is done during the transport process.

Active transport

F. Applies only to small, nonpolar solutes.

Simple diffusion

in diffusion since there is no carrier present, only small and nonpolar solutes are transported.

G. Applies only to ions.

none

Ions are transported by facilitated diffusion and active transport but they also transport other molecules

H. G=0.

None

G=0. means equilibrium but as we see in simple diffusion mlecules move from high concentration to low concentration, hence the process is spontaneous and value of  G= negative. Reverse is true in case of active transport,since it is non-spontaneous and recqiures driving force in form of energy, so  G= positive

I. Transport can occur in either direction across the membrane, depending on the prevailing concentration gradient.

simple diffusion , facilitated diffusion

since diffusion depends on concentration of solute, molecules can move in any direction.

J. A Michaelis constant (Km) can be calculated.

Active transport, Facilitated diffusion

hope you like the answers, will love to get your feedback.

thanks.

Related Questions

Navigate

• Browse (All)
• Browse T
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.