chromatophers takes part in
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Photosynthesis MCQs for NEET — Botany Questions with Answers
Practice free Photosynthesis (Botany) NEET multiple-choice questions online with instant answers and detailed explanations. No login required.
Which adaptation is observe only in xerophytes ?
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Explanation
Crassulacean Acid Metabolism (CAM) is a specific adaptation found in xerophytes which allows them to fix CO2 at night, reducing water loss during the day. Other cycles like TCA, Hatch-Slack (C4), and C3 are not exclusive to xerophytes.
What is the colour of Phytochrome pigment ?
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From the given below which is short-day plant ?
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Explanation
Paddy (rice) is a short-day plant. Short-day plants require a long period of darkness to flower. These plants typically flower when the night length exceeds a critical duration.
Which path is followed by plants as a part of adaptation in an ecosystem where Kangaroo rat is living ?
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Explanation
Kangaroo rats live in arid environments and have adapted to such conditions by using the CAM (Crassulacean Acid Metabolism) pathway. This pathway allows them to minimize water loss by fixing CO2 at night.
Give correct option for the given true and false statements
(i) Some insects, birds and mammals living in warm and dry climate have more darker black pigments than the races of same species living in cold and humid climate.
(ii) Tempreture variation is much lesser in aquatic habitat compared to terrestrial habitat
(iii) In deep fresh water lakes, there is gradual incrase in tempreture from surface to the bottem
(iv) In an aquatic habitat production increases with insing depth (T =True, F = False)
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The name Melvin Calvin is associated with
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Explanation
Melvin Calvin is known for his discovery of the Calvin cycle, which is the series of biochemical redox reactions that take place in the stroma of chloroplasts in photosynthetic organisms. This cycle is responsible for carbon fixation during photosynthesis.
Who gave chemical compositions of chlorophyll and carotenoids ?
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Explanation
Richard Willstätter and Arthur Stoll (often misspelled as Stahi) were awarded the Nobel Prize for their work on the chemical composition of chlorophyll and other plant pigments such as carotenoids.
The non-polar part of chlorophyll is
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Explanation
The non-polar part of chlorophyll is the phytol tail, which is a long hydrocarbon chain that helps anchor the chlorophyll molecule to the hydrophobic regions of the thylakoid membrane within the chloroplast.
The approximate dimension of chlorophyll porphyrinring is.
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