Unit 3 - Energy Transfer

Front

What is the second law of thermodynamics?

Back

The second law of thermodynamics states that energy transfer is not 100% efficient, and in any energy transfer, some energy is lost as heat, leading to increased entropy.

Front

Where do light-dependent reactions occur in photosynthesis?

Back

Light-dependent reactions occur in the thylakoid membrane of chloroplasts.

Front

Where do light-independent reactions (Calvin Cycle) occur?

Back

Light-independent reactions occur in the stroma of chloroplasts.

Front

What is the net gain of ATP from glycolysis?

Back

The net gain of ATP from glycolysis is 2 ATP.

Front

What is pyruvic acid a product of during glycolysis?

Back

Pyruvic acid is the product of the catabolism of glucose during glycolysis.

Front

Define energy transfer in biological systems.

Back

Energy transfer in biological systems refers to the movement of energy through a food chain or food web, where energy is passed from one organism to another.

Front

What is the role of ATP in cellular processes?

Back

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

Front

Explain the concept of entropy in thermodynamics.

Back

Entropy is a measure of disorder or randomness in a system, and according to the second law of thermodynamics, it tends to increase in isolated systems.

Front

What is glycolysis?

Back

Glycolysis is the metabolic pathway that converts glucose into pyruvate, producing a small amount of ATP and NADH in the process.

Front

What are thylakoids?

Back

Thylakoids are membrane-bound structures within chloroplasts where the light-dependent reactions of photosynthesis take place.