题目
题目

Bio 93 Section CDE 2025 Final- Section E

多重下拉选择题

Photosynthesis occurs in the [ Select ] nucleus chloroplast mitochondria ribosome . The reactions that take place during photosynthesis involve the relocation of electrons from water to sugar. One part of these reactions is reduction, which refers to the [ Select ] gain loss of electrons. The overall goal of the light reactions in photosynthesis is [ Select ] to capture energy from a photon controlled release of energy via NADH the explosive release of energy from a photon for synthesis of ATP and NADPH. The ATP that is made is synthesized in the [ Select ] thylakoid space thylakoid membrane stroma .

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思路分析
The question presents a sequence of blanks in a photosynthesis-related statement, and we must evaluate each possible option for that blank based on fundamental biology. First blank options: nucleus, chloroplast, mitochondria, ribosome - Nucleus: While essential for DNA storage and regulation, photosynthesis enzymes and processes are not organized inside the nucleus where transcription occurs. This makes the nucleus an unlikely site for the photosynthetic machinery itself. - Chloroplast: This is the organelle where the light-dependent reactions and the Calvin cycle take place in plant cells. The photosynthetic machinery (including thylakoid membranes and stroma) resides here, making chloroplast the correct choice for where photosynthesis occurs. - Mitochondria:......Login to view full explanation

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A scientist has 12 plants. All the plants were the same kind and about the same size. He put three plants on a window sill inside a room, three plants in a closet without a light and three plants outside on the ground. He put the last three plants outside too, but covered them with paper bags that had wholes punched in them for air. All the plants were given good soil and enough water. The plants on the window sill and the plants outside in the open grew well. The plants outside in the bags turned yellow and grew badly. The plants in the closet died. Which of the following is the best hypothesis based on the facts?

A scientist has 12 plants. All the plants were the same kind and about the same size. He put three plants on a window sill inside a room, three plants in a closet without a light and three plants outside on the ground. He put the last three plants outside too, but covered them with paper bags that had wholes punched in them for air. All the plants were given good soil and enough water. The plants on the window sill and the plants outside in the open grew well. The plants outside in the bags turned yellow and grew badly. The plants in the closet died. Which of the following is the best hypothesis based on the facts?

Finish the processs 1: The ____ 2: carry out the ____ 3: and produced ____

Which of the points identified with letters in the graph below has the highest net photosynthesis rate?

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