
The most important function of chlorophyll is:
(a) Absorb carbon dioxide from the atmosphere
(b) Absorb water and minerals from the soil
(c) Give green colour to the leaves
(d) perform photosynthesis in the presence of sunlight
Answer
512.7k+ views
Hint: Chlorophyll is a key component in the process which sustains plant life and produces oxygen for the entire planet. It is present in the chloroplast, an organelle exclusively found in plants.
Complete answer:
Chlorophyll is a light-absorbing green pigment present in chloroplast along with many other photosynthetic pigments. It is an essential pigment to perform photosynthesis as it can convert light energy into chemical energy (ATP). Other pigments act as accessory pigments because they collect and transfer light energy to chlorophyll-a for photosynthesis.
Additional Information: Photosynthesis is an enzyme regulated process inside chloroplast to produce glucose from carbon dioxide and water in the presence of sunlight. Stomata are tiny epidermal pores on leaves helping in the entry of carbon dioxide. The requirement of water is fulfilled from the soil by roots. Light energy is absorbed by photosynthetic pigments and converted into ATP by chlorophyll.
A pigment is a molecule that can absorb light at different wavelengths and thus has a particular colour. Chlorophyll absorbs light radiations in blue and red parts of the light spectrum. Chlorophyll is mostly present in two forms- chlorophyll-a and chlorophyll-b. Chlorophyll a absorbs more red wavelengths than violet-blue wavelengths of light while Chlorophyll-b absorbs violet-blue wavelengths more than the red wavelength of light.
So, the correct answer is 'perform photosynthesis in the presence of sunlight'.
Note: Accessory pigments include carotenoids, carotenes and xanthophylls and protect the chloroplast from nascent oxygen released during the photolysis of water. They dissipate excess energy by conversion of that energy into heat. Also, they make the flowers and fruits conspicuous to animals for pollination and dispersal.
Complete answer:
Chlorophyll is a light-absorbing green pigment present in chloroplast along with many other photosynthetic pigments. It is an essential pigment to perform photosynthesis as it can convert light energy into chemical energy (ATP). Other pigments act as accessory pigments because they collect and transfer light energy to chlorophyll-a for photosynthesis.
Additional Information: Photosynthesis is an enzyme regulated process inside chloroplast to produce glucose from carbon dioxide and water in the presence of sunlight. Stomata are tiny epidermal pores on leaves helping in the entry of carbon dioxide. The requirement of water is fulfilled from the soil by roots. Light energy is absorbed by photosynthetic pigments and converted into ATP by chlorophyll.
A pigment is a molecule that can absorb light at different wavelengths and thus has a particular colour. Chlorophyll absorbs light radiations in blue and red parts of the light spectrum. Chlorophyll is mostly present in two forms- chlorophyll-a and chlorophyll-b. Chlorophyll a absorbs more red wavelengths than violet-blue wavelengths of light while Chlorophyll-b absorbs violet-blue wavelengths more than the red wavelength of light.
So, the correct answer is 'perform photosynthesis in the presence of sunlight'.
Note: Accessory pigments include carotenoids, carotenes and xanthophylls and protect the chloroplast from nascent oxygen released during the photolysis of water. They dissipate excess energy by conversion of that energy into heat. Also, they make the flowers and fruits conspicuous to animals for pollination and dispersal.
Recently Updated Pages
Master Class 11 Physics: Engaging Questions & Answers for Success

Master Class 11 Chemistry: Engaging Questions & Answers for Success

Master Class 11 Biology: Engaging Questions & Answers for Success

Class 11 Question and Answer - Your Ultimate Solutions Guide

Master Class 11 Business Studies: Engaging Questions & Answers for Success

Master Class 11 Computer Science: Engaging Questions & Answers for Success

Trending doubts
Explain why it is said like that Mock drill is use class 11 social science CBSE

Which one is a true fish A Jellyfish B Starfish C Dogfish class 11 biology CBSE

What is the chemical name and formula of sindoor class 11 chemistry CBSE

How much is 23 kg in pounds class 11 chemistry CBSE

How do I get the molar mass of urea class 11 chemistry CBSE

What is the molecular weight of NaOH class 11 chemistry CBSE
