What is the figure representing?
ii) Name the structures labelled as 1, 2, 3, X, Y and Z.
iii) Name the structures that surround Y and state its function.
iv) Why is Y important for the plant?
Answers
Answer:
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Explanation:
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Answer:
The figure represents the dissection of a leaf.
Explanation:
(i) 1- Cuticle
2- Upper epidermis
3- Lower epidermis
X- chloroplast
Y- Guard cells
Z- Air spaces
(ii) stroma
(iii) Guard cells are important in plants as they control the opening and closing of stomata, which are small openings on the leaf surface used for gas exchange. By regulating the stomatal aperture, guard cells help plants balance water loss and carbon dioxide uptake, ensuring efficient photosynthesis and preventing excessive water loss, especially in dry or stressful environmental conditions.
cuticle :
The cuticle in plants is a waxy layer that covers the surfaces of leaves, stems, and other aerial plant organs, acting as a protective barrier against water loss, regulating gas exchange, and providing defence against environmental stresses.
epidermis :
The epidermis in plants is the outermost layer of cells that covers the aerial parts of the plant, such as leaves, stems, and roots. It serves as a protective barrier, regulates gas exchange, and may contain specialized structures such as stomata and trichomes for various functions.
Chloroplasts :
Chloroplasts are specialized organelles in plant cells that carry out photosynthesis, converting light energy into chemical energy, and are responsible for the green colouration of leaves due to chlorophyll pigments.
Guard cells :
Guard cells in plants are specialized cells found in the epidermis of leaves and stems that regulate the opening and closing of stomata, small openings on the surface of leaves that allow for gas exchange. By changing their shape, guard cells control the passage of water vapour and gases, helping to regulate plant water balance and photosynthesis.
To learn more about leaf and its Anatomyfrom the given link
https://brainly.in/question/10432859
https://brainly.in/question/16637371
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