Question

Question 4 (2 points) Which color would the chlorophyll a pigment absorb the best? black green O yellow red Question 5 (2 points) The reaction center (P680) of photosystem II has the ability to split water to make O2 but only when P680 is reduced when hydrogen bound to water oxidized free floating Question 6 (2 points) The electron transport chain of photosynthesis creates a proton gradient that is used to produced which of the following products: ATP H20 NADPH Both A and C

Answer 1

Question 4) Answer: Option D

Explanation: chlorophyll is the pigment responsible for photosynthesis. The light active in photosynthesis is a small part in visible spectrum(400-700nm). The chlorophyll pigments mainly absorb blue and red light.

Maximum absorption is in blue Light but maximum photosynthesis occurs in red light.

Chlorophyll a is a specific form of chlorophyll uses in oxygenic photosynthesis. It absorbs most energy from the wavelengths of violet-blue and orange-red light.

Question 6) Answer: Option A

Explanation: Electron transpor chain is a series of complexes that transfer electrons from electron donors to electron acceptors through redox reactions and couples this electron transfer with transfer of photons across membrane. The flow of electrons through electron transport chain is an exergonic process. The energy from redox reactions create an electrochemical photo gradient that drives the synthesis of adenosine triphosphate (ATP).