Photosynthesis and Cellular Respiration Review

Question 0

What happens during photosynthesis?

Answer 0

Inside the thylakoid membrane, sunlight splits a water molecule, releasing oxygen. Electrons enter the ETC and sunlight is used to produce NADPH, which makes glucose. H+ diffuses back across the membrane through a protein (ATP synthesis). The energy released from the flow of H+ converts ADP to ATP.

Question 1

How is energy released from an ATP molecule?

Answer 1

The third phosphate group is broken.

Question 2

What is the equation for photosynthesis?

Answer 2

6CO2 ➕ 6H2O ➡️ C6H12O6 ➕ 6O2

Question 3

What is the process of cellular respiration?

Answer 3

Glucose is broken down into pyruvic acid in the cytoplasm. In the mitochondria, pyruvic acid reacts with oxygen to create carbon dioxide, water, and ATP energy.

Question 4

What is the equation for cellular respiration?

Answer 4

6O2 ➕ C6H12O6 ➡️ 6CO2 ➕ 6H2O ➕ ATP energy.

Question 5

What are pigments?

Answer 5

They are light absorbing molecules. The color that they don’t absorb from the light is reflected.

Question 6

What is the role of NAD+ in cellular respiration?

Answer 6

It acts as an electron carrier.

Question 7

Which type of athlete (sprinter or distance runner) would use cellular respiration as their main source of fuel and which would use lactic acid fermentation?

Answer 7

Sprinter = cellular respiration 
Distance = lactic acid fermentation