Two types of transport of molecules across a cell membrane are:
Transport 1: Solute molecules move across the cell membrane along their concentration gradient; requires no energy expenditure.
Transport 2: Solute molecules move across the cell membrane against their concentration gradient; requires expenditure of energy.

Question

Two types of transport of molecules across a cell membrane are: 
Transport 1: Solute molecules move across the cell membrane along their concentration gradient; requires no energy expenditure. 
Transport 2: Solute molecules move across the cell membrane against their concentration gradient; requires expenditure of energy.

Warriorz13 · Answer

Which statement is CORRECT?
A)	Transport 1 describes passive transport by diffusion.	
B)	Transport 2 describes passive transport by the Na+/K+ pump.	
C)	Transport 2 describes passive transport by a carrier protein.	
D)	Transport 1 describes facilitated transport of substances through the membrane.

Elsa213 · Answer

What do you believe the correct answer is?

Warriorz13 · Answer

I have no idea Elsah ;-;

Warriorz13 · Answer

@joshiscool @Zowie @AshtynThatDrummerGirl @SkyVoltage43

Zowie · Answer

I'm sorry hun. I have no idea.

Warriorz13 · Answer

@psirockin3

Warriorz13 · Answer

It's all right hun.

AshtynThatDrummerGirl · Answer

I think it's A. Transport 1 describes passive transport by diffusion. but I could be very wrong XD

psirockin3 · Answer

i think A. i could be wrong though