The pigment found outside the chloroplast is

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Important Questions on Photosynthesis in Higher Plants

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Alpha Question Bank for Medical: Biology>Chapter 13 - Photosynthesis in Higher Plants>Exercise-2>Q 107

Carotenoids are generally long chain unsaturated hydrocarbons. Which of the following function/s correlate/s with the structures.

$i .$ They can absorb light of higher wavelength.
$ii .$ It allows carotenoids to transfer energy to chlorophyll-a molecule.
$iii .$ To reduce free radicals.
$iv .$ Long hydrocarbon chain allows carotenoids to protect chlorophyll-a from direct sunlight by absorbing excess light energy.

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Alpha Question Bank for Medical: Biology>Chapter 13 - Photosynthesis in Higher Plants>Exercise-2>Q 108

A plant biochemist received a specimen from a fellow scientist who noticed that the plant's stomata are closed during the day. The biochemist observed that radioactive carbon supplied in the form of carbon dioxide fed to the plant at night was first found in organic acids that accumulated in the vacuole. During the day; the label moved to sugars being manufactured in the chloroplast. What was the conclusion of the biochemist?

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Alpha Question Bank for Medical: Biology>Chapter 13 - Photosynthesis in Higher Plants>Exercise-2>Q 109

A student wants to test the presence of starch in a leaf. Select the required steps and arrange them in the correct order:

(i) Boiling the leaf in ethanol (90%)
(ii) Keeping the plant in the dark
(iii) Washing the leaf with hot water
(iv) Addition of iodine solution

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Alpha Question Bank for Medical: Biology>Chapter 13 - Photosynthesis in Higher Plants>Exercise-2>Q 110

Of the following pigments found in plants which one are not concerned with photosynthesis?

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