Energy Conversion Practice - 8th

Front

What is the key product of the Calvin cycle?

Back

G3P (Glyceraldehyde-3-phosphate) is the key product of the Calvin cycle, which is used to form glucose and other carbohydrates.

Front

What role does sunlight play in photosynthesis?

Back

Sunlight is used during photosynthesis to break down water, which releases oxygen and provides electrons for the conversion of carbon dioxide into glucose.

Front

What are the initial products of the Krebs cycle?

Back

The initial reaction of the Krebs cycle produces CO2, acetyl-CoA, and NADH.

Front

What is formed from pyruvate before entering the Krebs Cycle?

Back

Each pyruvate molecule loses electrons, hydrogen ions, and a carbon, forming an energy-rich molecule of Acetyl-CoA.

Front

What occurs during the regeneration phase of the Calvin cycle?

Back

During the regeneration phase of the Calvin cycle, G3P is converted back to RuBP (Ribulose bisphosphate) to continue the cycle.

Front

Define photosynthesis.

Back

Photosynthesis is the process by which green plants, algae, and some bacteria convert light energy into chemical energy in the form of glucose, using carbon dioxide and water.

Front

What is the function of NADPH in photosynthesis?

Back

NADPH is used in the Calvin cycle to provide the reducing power needed to convert carbon dioxide into glucose.

Front

Explain the role of ATP in cellular respiration.

Back

ATP (Adenosine triphosphate) serves as the primary energy carrier in cells, providing energy for various biochemical processes.

Front

What is the significance of the Krebs cycle?

Back

The Krebs cycle is significant because it generates high-energy electron carriers (NADH and FADH2) that are used in the electron transport chain to produce ATP.

Front

What is the difference between aerobic and anaerobic respiration?

Back

Aerobic respiration requires oxygen and produces more ATP, while anaerobic respiration occurs without oxygen and produces less ATP.