Figure 10.1 -In a Protein Complex for the Light Reaction (A Reaction

question 53

Multiple Choice

Figure 10.1
-In a protein complex for the light reaction (a reaction center) , energy is transferred from pigment molecule to pigment molecule, to a special chlorophyll a molecule, and eventually to the primary electron acceptor. Why does this occur?

• A)The action spectrum of that molecule is such that it is different from other molecules of chlorophyll.
• B)The potential energy of the electron has to go back to the ground state.
• C)The molecular environment lets it boost an electron to a higher energy level and also to transfer the electron to another molecule.
• D)Each pigment molecule has to be able to act independently to excite electrons.
• E)These chlorophyll a molecules are associated with higher concentrations of ATP.

Recognize the role of key molecules like acetyl CoA, pyruvate, and citrate in metabolic regulation and pathway interconnections.

Identify the regulatory mechanisms of metabolic enzymes through allosteric modification and understand the impact of such regulation on cellular metabolism.

Trace the metabolic pathways from glucose to various end products including DNA, triglycerides, and ATP.

Comprehend the process and significance of glycolysis, the citric acid cycle, and electron transport in cellular respiration.

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