Advertisements
Advertisements
प्रश्न
Fig. represents the vertical section of a leaf.
- Name the parts labelled 1 to 5.
- What do the two arrows (dotted and solid) indicate in the daytime and at night?
- Could you add one more arrow in the figure? If yes, what for?
Advertisements
उत्तर
-
- Upper Epidermis
- Palisade layer/chloroplast
- Xylem
- Phloem
- Guard cell
- The two arrows show the release of oxygen and water vapours during the daytime and carbon dioxide and very less amount of oxygen is released during the night.
- Yes, one more arrow can be added to show the absorption of carbon dioxide by the leaf.
APPEARS IN
संबंधित प्रश्न
Give biological reasons for the following statements : In some xerophytes leaves are modified into spines
Briefly explain the following terms: Photophosphorylation
Given below is an experimental setup to demonstrate a particular tropic movement in germinating seeds. Study the diagram and answer the questions that follow:
- Label the parts 1 and 2.
- Name the tropic movement shown by part 1.
- Part 1 is affected by two stimuli. Name them. Which one of the two is stronger?
- What is thigmotropism? Give one example.
- What is meant by 'Positive' and 'Negative' tropic movements in plants?
The following statement is about photosynthesis in a green plant. Write whether it is True or False.
The raw materials for photosynthesis include water and carbon dioxide.
Choose the correct answer:
Which of the following gas is used in photosynthesis?
Name the molecules which are called assimilatory power? Why are they called so?
Explain the Term Free Energy.
Choose the correct option.
In presence of high concentration of oxygen, RuBP carboxylase converts RuBP to ______.
Only green plants have the unique capacity to release ______ into the atmosphere.
