Where does the light reactions occur? (Choose ONE correct answers)

Question

BlackTom AI · Accepted Answer

To approach this question, let's map where the light-dependent reactions actually take place within the chloroplasts.
Option 1: 'Chloroplast, in the stroma' — The stroma is the fluid surrounding the thylakoids and is the site of the Calvin cycle, not the light-dependent reactions. This makes the statement incorrect.
Option 2: 'Chloroplast, in the lumen' — The lumen is the interior space of the thylakoid; while it plays a role in proton gradient, the light reactions themselves are not carried out there as a membrane-intrinsic process. Therefore, this is not accurate for the location of the light reactions.
Option 3: 'Chloroplast, in the thylakoid membrane' — This is correct. The light reactions occur in the thylakoid membranes where photosystems I and II, electron transport chain, and ATP synthase reside and drive the production of ATP and NADPH.
Option 4: 'Chloroplast, in the thylakoid space' — The thylakoid space refers to the lumen inside the thylakoids, which is distinct from the membrane itself. While the proton gradient is established across the membrane and involves the lumen, the actual light-dependent reactions are not said to occur inside the lumen; they occur across the membrane. Hence, this choice is incorrect.

Where does the light reactions occur? (Choose ONE correct answers)

查看解析

登录即可查看完整答案

类似问题

Which of the following are products of the light reactions of photosynthesis that are utilized in the Calvin cycle?

Green plants release oxygen into the atmosphere during

During the light reactions of photosynthesis is oxidized and is reduced.

NADPH is generated during the ____ reactions, only through _ electron flow.

Order the flow of electrons in the light-dependent reactions of photosynthesis. 1: Splitting of water 2: Photons + Photosystem II 3: Photons + Photosystem I 4: Cytochrome b6-f complex 5: NADP Reductase

What are the 2 main products of the light reactions? (Choose ONE correct answer)

During the light reactions, a water molecule is split, supplying the missing electrons in PSI and PSII. (True or False)

更多留学生实用工具

考试浏览器助手

风格化写作助手

论文查重助手

文献引用助手

课堂转译助手

课堂笔记助手

Quiz搜索助手

学校历年真题

智能刷题助手

智能匹配练习

希望你的学习变得更简单

Where does the light reactions occur? (Choose ONE correct answers)

查看解析

登录即可查看完整答案

类似问题

Which of the following are products of the light reactions of photosynthesis that are utilized in the Calvin cycle?

Green plants release oxygen into the atmosphere during

During the light reactions of photosynthesis ______ is oxidized and ______ is reduced.

NADPH is generated during the ________ reactions, only through _____ electron flow.

Order the flow of electrons in the light-dependent reactions of photosynthesis. 1: Splitting of water 2: Photons + Photosystem II 3: Photons + Photosystem I 4: Cytochrome b6-f complex 5: NADP Reductase

What are the 2 main products of the light reactions? (Choose ONE correct answer)

During the light reactions, a water molecule is split, supplying the missing electrons in PSI and PSII. (True or False)

更多留学生实用工具

希望你的学习变得更简单

During the light reactions of photosynthesis is oxidized and is reduced.

NADPH is generated during the ____ reactions, only through _ electron flow.