Advertisements
Advertisements
प्रश्न
Most leaves have the upper surface more green and shiny than the lower one. Why?
Give reasons/explain:
Most leaves have the upper surface more green and shiny than the lower surface.
Advertisements
उत्तर
The chloroplasts are concentrated in the upper layers of the leaf, which helps cells trap sunlight quickly. Also, the epidermis is covered by a waxy, waterproof layer of cuticle. This layer is thicker on the upper surface than the lower one. Hence, most leaves have an upper surface that is more green and shiny than the lower one.
APPEARS IN
संबंधित प्रश्न
Chlorophyll in a leaf is required for
Name the following:
The part of chloroplast where the dark reaction of photosynthesis takes place.
Identify the false statement and rewrite it correctly by changing the first or last word only.
Photosynthesis occurs only in cells containing chloroplasts.
Differentiate Between:
Stroma of chloroplast and Grana of chloroplast
Differentiate Between:
Autotrophs and Heterotrophs.
Name the following:
The principal site in a green leaf for photosynthesis.
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
Photosynthesis occurs only in plants.
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
All the starch produced in a leaf remains stored in it for 2-3 weeks before it is used by other parts of a plant.
Draw a neat, labelled diagram of a chloroplast.
Given below are groups of terms. The first pair indicates the relationship between the two terms. Complete the second pair accordingly.
Chlorophyll : Magnesium : : Haemoglobin : ______
