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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.
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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.
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संबंधित प्रश्न
Chlorophyll in a leaf is required for
Which tissues and cells are mainly concerned with photosynthesis?
(i) Identify the above diagram.
(ii) Label the guidelines 1-3.
(iii) Name the phenomenon which takes place in the above diagram.
(iv) Define the phenomenon.
(v) What is the importance of the above phenomenon?
The figure given below represents an experiment to demonstrate a particular aspect of photosynthesis. The alphabet ‘A’ represents a certain condition inside the flask.
(i) What is the aim of the experiment?
(ii) Identify the special condition inside the flask.
(iii) Name an alternative chemical that can be used instead of KOH.
(iv) In what manner do the leaves 1 and 2 differ at the end of the starch test?
Explain the term Photophosphorylation.
Explain the term Carbon cycle.
Complete the following sentence with appropriate word:
The conversion of the physical energy of light into chemical energy by the chloroplast is called ____________.
Complete the following sentence with appropriate word:
Calvin cycle was proposed by __________.
State the location:
Stroma
The basic functional unit of solar energy which is absorbed by the pigment chlorophyll is ______.
