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Pigment associated with physiological function
Options
(a) phytochrome
(b) anthocyanin
(c) chlorophyll
(d) carotene
Correct Answer:
phytochrome
Explanation:
Phytochrome is a pigment involved in the perception of photoperiodic stimuli controlling flowering, lettuce seed germination and other morphogenetic phenomenon. The phytochrome exists in two forms : the phytochrome red absorbing form (Pr) and the phytochrome far-red absorbing form (Pfr).Scientist consider the Pfr form to be the physiologically active form. Phytochrome is a blue-green pigment existing in two interconvertible forms. One form Pfr or P₇₃₀ absorbs far-red light and the other Pr or P₆₆₀ or P₆₈₀ a
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Topics: Plant Growth and Development
(126)
Subject: Biology
(4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- In the sleve elements,which one of the following is the most likely function
- An excised leaf does not turn yellow if it is induced to root This is attributed
- Which one of the following statements is correct – orchids
- Double fertilization in angiosperms was first explained by
- Read the following four statements about plants and diseases
Topics: Plant Growth and Development (126)
Subject: Biology (4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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