Cellular Respiration and Transport

Question 1

How many ATP are produced via aerobic respiration?

Answer 1

34-36 ATP

Question 2

How many ATP are produced by anaerobic respiration and what is the by-product?

Answer 2

2ATP

Lactic Acid

Question 3

What are the steps in Aerobic respiration?

Answer 3

Glucose>Glycolysis>2 pyruvate>pyruvate processing>2 Acetyl CoA>Krebs Cycle>Electron transport chain

Question 4

Passive Transport (3 types)

Answer 4

Simple Diffusion
Facilitated Diffusion
Osmosis

Question 5

Active Transport (2 types)

Answer 5

Primary Active Transport (Na+)

Secondary Active Transport
-Contransport
(solute moves same direction as ion)
-Countertransport
(solute moves opposite direction of ion)

Question 6

3 categories of transport across membranes

Answer 6

Passive
Active
Exocytosis/Endocytosis

Question 7

Primary Active Transport

Answer 7

• Molecules are pumped against a concentration gradient at the expense of energy - direct use of ATP
• uniport

Question 8

Secondary Active Transport

Answer 8

Transport is driven by the energy stored in the concentration gradient of another molecule (Na+) - i.e. one molecule down gradient, one molecule against gradient (Indirect use of ATP)

Question 9

Example of Cotransport (Secondary active transport)

Answer 9

Absorption of glucose along with Na+ into small intestines and into kidney cells

• Na+/K+ pump maintains a higher concentration of Na+ outside the cell than inside
• As sodium leaks back into the cell through another transport protein, glucose moves through the same protein, using the energy of the Na+ concentration gradient