Phytochrome is a - DASH

Your AI-Powered Personal Tutor

Question

Phytochrome is a

flavoprotein

glycoprotein

lipoprotein

chromoprotein

Solution

Please login to view the detailed solution steps...

Go to DASH

© All Rights reserved @ LearnWithDash

Explanation 1. Definition of Phytochrome: Phytochrome is a type of plant pigment responsible for detecting light. This pigment is known as a chromoprotein because it has a colored component (chromophore) attached to a protein. 2. Structure of Phytochrome: Phytochrome consists of two main parts: A chromophore – the light-absorbing portion. A protein component – to which the chromophore is bound. 3. Forms of Phytochrome: Phytochrome exists in two interconvertible forms, each absorbing different wavelengths of light: $ P_{r} $ (Phytochrome red), which absorbs red light (around 660 nm). $ P_{fr} $ (Phytochrome far-red), which absorbs far-red light (around 730 nm). These two forms can convert into one another, helping the plant sense different light conditions. 4. Biological Roles: Phytochrome plays a crucial part in: Seed Germination: Many seeds require certain light conditions (e.g., red light) to germinate. Flowering Regulation: Phytochrome participates in detecting day length to control flowering. Photoperiodism: It helps the plant sense seasonal changes by detecting light duration and quality. 5. Conclusion: Since phytochrome contains a colored chromophore attached to a protein, it is classified as a chromoprotein. This specialized pigment is fundamental to plant development processes that are influenced by light.

Subject Backlinks

Biology Subject Chemistry Subject Mathematics Subject Physics Subject Subjects Subject

Quiz Backlink

Parent Quiz 795731

Related Question Backlinks

Question 795832 Question 795836 Question 795830 Question 795840 Question 795826 Question 795842 Question 795825 Question 795844 Question 795823 Question 795848 Question 795820 Question 795850 Question 795817 Question 795852 Question 795815 Question 795856 Question 795812 Question 795858 Question 795810 Question 795862