Question
Question: Leaves appear green, because (a) They absorb green light (b) They reflect green light (c) They...
Leaves appear green, because
(a) They absorb green light
(b) They reflect green light
(c) They absorb and reflect green light
(d) They absorb green and reflect green light
Solution
Hint: Plants contain a pigment called chlorophyll for the process of photosynthesis. This pigment does not absorb the green color.
Complete answer: Chloroplasts absorb wavelengths of light within the visible light spectrum. From the absorption spectra, chlorophyll absorbs light in the long wavelength and the short wavelength that is red and blue. Greenlight is not absorbed but only reflected. Most of the plants have green leaves.
This color is due to the presence of a photosynthetic pigment called “chlorophyll” and it allows plants to make food so they can grow using water, air, and light from the sun. This way that a plant makes food for itself is called “photosynthesis”. Without photosynthesis, there would be no plants or life that would survive on Earth. In the plants, chloroplast contains the chlorophyll. Chloroplasts are green because of the presence of chlorophyll and it is situated in the thylakoid membranes.
The leaf is a green, flat expanded lateral appendage present in the stem. It is borne at a node and bears a bud in its axil. It is exogenous in origin. Also, the leaf develops from the leaf primordium of the shoot apex. The leaf has very limited growth. The three main parts of the leaf are leaf base, petiole and leaf lamina. Sometimes it also has a lateral outgrowth at the leaf base called stipules.
So, the correct answer is that ‘they reflect green light’.
Note: Photosynthesis is a process used by the plants to harness energy from sunlight (light energy) and turn it into chemical energy. It is the process of plants to make their food by taking carbon dioxide produced by all breathing organisms and reintroduce oxygen into the atmosphere.