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Practice Test - Question 66 (66 of 82)
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66. In photosynthesis, high-energy electrons move through electron tran and NADPH. Which of the following provides the energy to create ns to produce ATP rgy electrons?
NADH
NADP
Practice Test - Question 66 (66 of 82)
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66. In photosynthesis, high-energy electrons move through electron tran and NADPH. Which of the following provides the energy to create ns to produce ATP rgy electrons?
NADH
NADP
Ask by Conner Marsh. in the United States
Jan 31,2025
Upstudy AI Solution
Tutor-Verified Answer
Answer
NADP⁺ provides the energy to create NADPH, which is used to produce ATP in photosynthesis.
Solution
It looks like you’re working on a question related to the electron transport chain in photosynthesis. Let’s break down the question and the options provided to arrive at the correct answer.
Question Breakdown:
"In photosynthesis, high-energy electrons move through the electron transport chain and NADPH. Which of the following provides the energy to create NADPH to produce ATP?"
Understanding the Components:
-
Electron Transport Chain (ETC) in Photosynthesis:
- In the light-dependent reactions of photosynthesis, light energy is captured by chlorophyll and used to excite electrons to a higher energy state.
- These high-energy electrons travel through the electron transport chain, leading to the production of ATP and NADPH.
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NADP⁺ vs. NADPH:
- NADP⁺ (Nicotinamide adenine dinucleotide phosphate) is the oxidized form.
- NADPH is the reduced form, carrying high-energy electrons used in the Calvin cycle to synthesize carbohydrates.
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Energy Source:
- The primary energy source driving the production of ATP and NADPH in photosynthesis is light energy from the sun.
- Specifically, the energy from photons is used to excite electrons, which then move through the ETC, facilitating the formation of ATP and the reduction of NADP⁺ to NADPH.
Given Options:
- NADH
- NADP⁺
Analysis of Options:
-
NADH: Primarily involved in cellular respiration, not directly in the photosynthetic electron transport chain.
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NADP⁺: Directly involved in photosynthesis. It accepts electrons to form NADPH, which is essential for the Calvin cycle.
Conclusion:
NADP⁺ is the molecule that accepts high-energy electrons in the photosynthetic electron transport chain, getting reduced to NADPH. This process is driven by the energy captured from light.
Final Answer:
NADP⁺ provides the necessary role in accepting electrons to form NADPH during photosynthesis.
Answered by UpStudy AI and reviewed by a Professional Tutor
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Mind Expander
Did you know that photosynthesis is a two-step process? In the first stage, light reactions capture sunlight and convert it into chemical energy, generating ATP and NADPH in the process. During this reaction, high-energy electrons are critical—they fuel the creation of ATP by moving through the electron transport chain, essentially generating energy currency for plants!
In real-world application, understanding photosynthesis isn’t just for biology nerds! This process is fundamental for agriculture and environmental science. By improving photosynthetic efficiency through genetic engineering or innovative farming practices, we can boost crop yields and fight climate change—helping to feed the growing population sustainably!