Advertisements
Advertisements
प्रश्न
The figure below represents the vertical section of a leaf:
(i) Name the parts 1 to 5.
(ii) How many veins have been shown?
(iii) State the functions of parts 4 and 5.
Advertisements
उत्तर
(i)
- Cuticle
- Upper Epidermis
- Palisade tissue/chloroplast
- Xylem
- Stomata
(ii) One vein has been shown.
(iii) Xylem – helps in the conduction of water.
Stomata – through which exchange of gases takes place.
APPEARS IN
संबंधित प्रश्न
Given below is an experiment setup to demonstrate a particualr tropic movement in germinating seeds. Study the diagram and answer the questions that follow :
(ii) Name the tropic movement shown by part 1.
Given below is an experiment setup to demonstrate a particualr tropic movement in germinating seeds. Study the diagram and answer the questions that follow :
What is Thigmotropism? Give one example.
The following statement is about photosynthesis in a green plant. Write whether it is True or False.
Photosynthesis stops at a temperature above 35°C.
Name the following:
The products that are formed as a result of photosynthesis.
How does carbon dioxide return to the atmosphere? Explain.
A student in order to study the importance of certain factors of photosynthesis took a potted plant and kept it in the dark for over 24 hours. Then in the early hours of the morning the student covered one of the leaves with black paper in the centre only. Student placed the potted plant in the sunlight for a few hours, and then tested the leaf which was covered with black paper for starch.
(i) What aspect of photosynthesis was being investigated?
(ii) Is there any control in this experiment? If so, state the name.
(iii) Why was the plant kept in the dark before the experiment?
(iv) Describe step by step how the candidate proceeded to test the leaf for the presence of starch.
Explain the Term NADPH.
Complete the following sentence with appropriate word:
A light reaction is a ___________ reaction.
Choose the correct option.
A cell that lacks chloroplast does not ______.
The chemical reaction occurs during photosynthesis is ______.
Guard cells of stomata are green but cannot photosynthesize? Give reason.
