Question 1

What are two major differences between active transport and passive transport? Please give a specific example of each that occurs within a eukaryotic cell.

Accepted Answer

The answer of What are two major differences between active...

Question 2

Refer to the figure below, and then answer the question that follows.
 
-The type of transport shown is an example of:

Accepted Answer

Endocytosis is a type of transport in which a cell takes in material from its surroundings by engulfing it with its cell membrane.

Question 3

An accident victim lost a lot of blood and was rushed to the emergency room.In the emergency room,the first thing the doctors did was replace lost fluids by giving an IV of pure water.But this caused the patient to die.Propose a reason why the patient died.

Accepted Answer

The answer of An accident victim lost a lot of...

Question 4

________ is the process that a cell can use to bring very large molecules into the cell.

Accepted Answer

The answer of ________ is the process that a cell...

Question 5

Refer to the figure below, and then answer the question that follows.
 
-For this type of transport to take place,which of the following must be true about the interior and exterior environments?

Accepted Answer

In this figure, glucose is being transported from an area of higher concentration (outside the cell) to an area of lower concentration (inside the cell). Therefore, the glucose concentration must be higher outside the cell than inside the cell for this type of transport to take place. Choice A is incorrect because it suggests the opposite - that the amount of glucose outside the cell is lower than the interior concentration. Choice C is incorrect because if the concentrations were the same on both sides, there would be no concentration gradient and no net movement of glucose. Choice D is also incorrect because although a transport protein is involved in this process, the concentration gradient of glucose is still important for the direction of transport.

Question 6

A woman suffering from severe dehydration goes into the hospital.The doctor tells the woman that her blood has far too much solute in it and not enough water.Explain how this condition could affect the cells of her body and why.

Accepted Answer

The answer of A woman suffering from severe dehydration goes...

Question 7

A ________ plasma membrane allows water but not solutes to pass through it.

Accepted Answer

The answer of A ________ plasma membrane allows water but...

Question 8

Match between columns
                        Premises: Movement of materials across a cell membrane that does not require energy
Requires the expenditure of energy to move molecules or ions across a cell membrane
Uses transport proteins to assist the movement of materials down a concentration gradient
The movement of molecules down their concentration gradient without the use of a transport protein
Uses a transport vesicle to release materials to the exterior of a cell
Uses a transport vesicle to bring large materials into the cell

Accepted Answer

The Answer of simple diffusion and facilitated diffusion and endocytosis is...

Quiz 5: Lifes Border: the Plasma Membrane

What are two major differences between active transport and passive transport? Please give a specific example of each that occurs within a eukaryotic cell.

Refer to the figure below, and then answer the question that follows. -The type of transport shown is an example of:

An accident victim lost a lot of blood and was rushed to the emergency room.In the emergency room,the first thing the doctors did was replace lost fluids by giving an IV of pure water.But this caused the patient to die.Propose a reason why the patient died.

________ is the process that a cell can use to bring very large molecules into the cell.

Refer to the figure below, and then answer the question that follows. -For this type of transport to take place,which of the following must be true about the interior and exterior environments?

A woman suffering from severe dehydration goes into the hospital.The doctor tells the woman that her blood has far too much solute in it and not enough water.Explain how this condition could affect the cells of her body and why.

A ________ plasma membrane allows water but not solutes to pass through it.

Match the following.