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Factors affecting photosynthesis

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Every question from past board papers on Factors affecting photosynthesis, newest paper first. Open any question for its full worked answer.

NEET UG 2018 question paper (official, booklet EE)

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  1. Stomatal movement is *not* affected by

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  2. Which of the following elements is responsible for maintaining turgor in cells ?

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  3. In which of the following forms is iron absorbed by plants ?

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NEET UG 2017 question paper (official, booklet B)

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  1. With reference to factors affecting the rate of photosynthesis, which of the following statements is not correct ?

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NEET UG 2016 Phase 1 question paper (official, booklet A)

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  1. Water vapour comes out from the plant leaf through the stomatal opening. Through the same stomatal opening carbon dioxide diffuses into the plant during photosynthesis. Reason out the above statements using one of following options :

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NEET UG 2016 Phase 2 question paper (official, booklet ZZ)

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  1. A few drops of sap were collected by cutting across a plant stem by a suitable method. The sap was tested chemically. Which one of the following test results indicates that it is phloem sap?

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