Diffusion Quiz Review (NYS LE Regents Questions)

A characteristic common to both diffusion and active transport is that...

• enzymes are required

• oxygen is moved across a membrane

• ATP is needed

• the movement of molecules occurs

The diagram represents a plant leaf cell and two different molecules used in the process of glucose synthesis.

Molecules 1 and 2 enter the cell and glucose leaves the cell through the process of...

• respiration

• digestion

• active transport

• diffusion

The diagram represents an experimental setup. Which term correctly identifies the process by which molecules move through the dialysis tube membrane?

• paper chromatography

• active transport

• diffusion

• digestion

Hospital patients are often given intravenous fluids (IVs) to maintain proper levels of water and salts in the body. Great care is used in preparing these solutions. If a manufacturer accidentally prepared a batch of IV fluid that contained much more than the usual amount of salt, harm to the patient could result. The most likely effect on a patient if this incorrectly prepared IV fluid was used is that

• water would move into body cells and cause them to burst

• water would move out of body cells and cause them to dehydrate

• salt and water would both move out of body cells and disrupt homeostasis

• salt and water would both move into body cells and preserve homeostasis

An artificial cell filled with a glucose solution was placed in a beaker of water, as represented below. The beaker was left undisturbed for 20 minutes.

If both glucose and starch were added to the artificial cell, where would the starch be located after 20 minutes?

• Both inside and outside of the cell

• Outside of the cell only

• Inside of the cell only

• It would deteriorate and disappear

An experimental setup using a model cell is shown in the diagram.

State what cell structure the dialysis tubing represents.

• The nucleus

• The cell membrane

• A ribosome

• A mitochondria

The diagram represents two solutions, A and B, separated by a selectively permeable membrane.

A sample from solution A and solution B were each tested with blue-colored glucose indicator solution before the solutions were placed in the beaker. Which of the following best describes the expected results?

• Solution A: Red or Orange, Solution B: Blue

• Solution A: Blue/Black, Solution B: Amber

• Solution A: Blue, Solution B: Red or Orange

• Solution A: Amber, Solution B: Blue/Black

The diagram represents two solutions, A and B, separated by a selectively permeable membrane.

Which statement best describes the outcome after 20 minutes?

• Solution A will contain approximately the same number of glucose molecules as solution B.

• Solution A will contain all of the water molecules.

• Solution B will remain unchanged

• Solution B will lose all of the glucose molecules to solution A

The diagram represents an experimental setup.

Which statement best describes what would most likely be observed after 20 minutes?

• The contents of the dialysis tube would turn blue-black.

• The liquid in the beaker would turn blue-black.

• The dialysis tube would burst.

• There would be no change visible.

A student filled a dialysis tube with 97% water solution and sealed the ends. The tube and its contents had a mass of 55 grams. The student placed the tube in a solution, and the mass of the tube and its contents increased to 60 grams. Into which solution was the dialysis tube placed?

• 0% water

• 95% water

• 97% water

• 99% water