Keystone Test Biology: Cell Processes/Transport 2

Question 1

A cell is placed in a solution where the solute concentration outside is higher than inside the cell. Which term describes this external solution?

Accepted Answer

Hypertonic

Answer

Hypotonic

Answer

Isotonic

Answer

Neutral

Question 2

During cellular respiration, glucose is broken down in which order of stages?

Accepted Answer

Glycolysis → Krebs cycle → electron transport chain

Answer

Krebs cycle → glycolysis → electron transport chain

Answer

Electron transport chain → glycolysis → Krebs cycle

Answer

Glycolysis → electron transport chain → Krebs cycle

Question 3

Which organelle is primarily responsible for producing ATP through aerobic respiration?

Accepted Answer

Mitochondrion

Answer

Nucleus

Answer

Ribosome

Answer

Vacuole

Question 4

A red blood cell is placed in distilled water. What will happen to the cell?

Accepted Answer

It will swell and potentially burst

Answer

It will shrink due to plasmolysis

Answer

It will remain unchanged

Answer

It will undergo active transport

Question 5

Which process moves substances across the cell membrane WITHOUT using energy, moving from high to low concentration?

Accepted Answer

Passive diffusion

Answer

Active transport

Answer

Endocytosis

Answer

Sodium-potassium pump

Question 6

What is the net ATP yield from one molecule of glucose during complete aerobic respiration?

Accepted Answer

36–38 ATP

Answer

2 ATP

Answer

4 ATP

Answer

100 ATP

Question 7

Which molecule acts as the final electron acceptor in the electron transport chain during aerobic respiration?

Accepted Answer

Oxygen

Answer

Carbon dioxide

Answer

Water

Answer

NADH