Additional Concepts

Question 1

What is chemiosmosis?

Answer 1

The movement of protons across a membrane, driving the synthesis of ATP via ATP synthase.

Question 2

What is one thing that connects respiration and photosynthesis?

Answer 2

GLUCOSE
Respiration breaks down glucose to produce ATP, while photosynthesis uses light energy to produce glucose, which can later be used in respiration.

Question 3

Explain the flow of energy in glycolysis and photosynthesis.

Answer 3

Both glycolysis and photosynthesis are processes that transform energy (glucose → ATP in respiration and light → glucose in photosynthesis).

Question 4

What role does FADH₂ play in cellular respiration/ photosynthesis?

Answer 4

NADH and FADH2 carry high-energy electrons to the electron transport chain in cellular respiration.

Flavin adenine dinucleotide, or FADH2, is a redox cofactor that is created during the Krebs cycle and utilized during the last part of respiration, the electron transport chain.

NADH and FADH2 are responsible for donating electrons to the electron transport chain. During the electron transport chain, they both give electrons by supplying a hydrogen molecule to the oxygen molecule to generate water. The glycolysis and Kreb cycles both produce NADH. Only the Krebs cycle produces FADH2.

Question 5

What role does ATP play in cellular respiration/ photosynthesis?

Answer 5

Both are processes within the cell which make chemical energy available for life. Photosynthesis transforms light energy into chemical energy stored in glucose, and cellular respiration releases the energy from glucose to build ATP

Question 6

What role does CO₂ play in cellular respiration/ photosynthesis?

Answer 6

CO₂ in Photosynthesis:
- Role: CO₂ is absorbed by plants and used in the Calvin cycle to produce glucose (C₆H₁₂O₆).
- Process: CO₂ + H₂O + light energy → C₆H₁₂O₆ + O₂.

CO₂ in Cellular Respiration:
- Role: CO₂ is produced as a waste product when glucose is broken down to release energy.
- Process: C₆H₁₂O₆ + O₂ → CO₂ + H₂O + ATP.

Question 7

What role does O₂ play in cellular respiration/ photosynthesis?

Answer 7

O₂ in Photosynthesis:
- Role: O₂ is a byproduct of photosynthesis. It is released into the atmosphere when water (H₂O) is split during the light-dependent reactions.
- Process: CO₂ + H₂O + light energy → C₆H₁₂O₆ + O₂.

O₂ in Cellular Respiration:
- Role: O₂ is a key reactant in cellular respiration. It acts as the final electron acceptor in the electron transport chain, allowing ATP production.
- Process: C₆H₁₂O₆ + O₂ → CO₂ + H₂O + ATP.

Question 8

TF
Photosynthesis and respiration are complementary processes. The products of one are often used as reactants in the other (e.g., oxygen in photosynthesis, carbon dioxide in respiration).

Answer 8

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