Lec. 17 - Photosynthesis Reactions Flashcards
Describe light, pigments, chlorophyll.
Light is a form of electromagnetic radiation that travels in waves. Pigments are molecules that absorb specific wavelengths of light and reflect or transmit others. Chlorophyll is the primary photosynthetic pigment responsible for capturing light energy during photosynthesis.
Compare the components of the light-dependent and light-independent reactions.
Light dependent reactions occur in the thylakoid membranes and harness light energy to produce ATP and NADH while light independent reactions take place in the stroma using ATP and NADPH to fix carbon dioxide and synthesize carbs.
Describe a photosystem and the role it plays in photosynthesis.
A photosystem is a key molecular complex found in the thylakoid membrane of chloroplasts, involved in the light dependent reactions of photosynthesis.
Explain the role of chemiosmosis in photosynthesis.
Chemiosmosis in photosynthesis involves the movement of protons across a membrane through ATP synthase, leading to the synthesis of ATP from ADP.
Describe inputs and outputs of the light dependent vs. light independent reactions.
Inputs of LD are light energy and water, outputs are oxygen, ATP, and NADPH. Inputs of LI are ATP, NADPH, and CO2, outputs are glucose and other carbs, and ADP and Pi.
