Q1 What is the respiratory surface?
Q2 What are the characteristics of an ideal respiratory surface?
Q3 How does gaseous exchange take place in the lower plants?
Q4 Which part of a plant is involved in the gaseous exchange?
Answers
Explanation:
1. special area that is developed in order to satisfy the requirements for gaseous exchange in larger organisms. Examples include external gills, internal gills, lungs, and the insect tracheae.
2. The characteristics of a respiratory surface are thin walls, a moist inner surface, a huge combined surface area, a rich blood supply each alveolus is sounded by capillaries.
3. Gas Exchange in Plants. Plants obtain the gases they need through their leaves. They require oxygen for respiration and carbon dioxide for photosynthesis. The gases diffuse into the intercellular spaces of the leaf through pores, which are normally on the underside of the leaf - stomata
4. The exchange of oxygen and carbon dioxide in the leaf (as well as the loss of water vapor in transpiration) occurs through pores called stomata (singular = stoma). Normally stomata open when the light strikes the leaf in the morning and close during the night.
Answer:
1:-a special area that is developed in order to satisfy the requirements for gaseous exchange in large organisms
example- external gills and internal gills
2:-the characteristic of respiratory surface are thin walls, inner surface,a huge combined surface area,a rich blood supply each alveolus and surface is sounded by capillaries.
3:-In lower plants (and also protozoans) exchange of gases take place through the general body surface as they are not highly modified or a specialised.Also, the body surface allows the diffusion of gases.
4:-the exchange of gases in leaf (as well as the loss of water vapour in transpiration) occurs through force
called stomata.
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