Test Your Knowledge!
Input and Architecture
- Why are leaves green?
- Red light has a longer wavelength than blue light. Which light has higher energy?
- What molecule in a plant actually absorbs the light energy needed for photosynthesis?
- What are the products of the light reactions?
- Once a pigment loses an electron, what is its charge?
- What type of agent removes the electrons from a photosystem?
- Which direction, from high to low concentration, or from low to high concentration, do protons move to generate ATP?
- What is one of the most limiting steps of photosynthesis?
- What does it mean when we say a protein is reduced?
Input and Architecture Answers
- Answer: Leaves
are green because they are not good at absorbing green light for
photosynthesis, and green light is therefore reflected, making the
- Answer: Blue light has higher energy than red light.
- Answer: Chlorophyll is the pigment in plants that absorbs light energy for photosynthesis.
- Answer: O2, ATP, and NADPH are produced.
- Answer: A pigment is positively charged after losing an electron.
- Answer: An oxidizing agent removes electrons from the system; oxidizing agents can also be called electron acceptors.
- Answer: Protons move from high to low concentration to generate ATP.
- Answer: Carbon fixation by RuBisCo.
- Answer: It gained an electron.
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