About Lesson
Examples of specialized plant cells
Root hair cell
Has an extension/root-hair to increase the surface area for absorption of water and mineral salts
Function: Absorption of water and mineral salts from soil to the plant.
Palisade cells
They are numerous, elongated and contain numerous chloroplasts to trap optimum light for photosynthesis;
Function: Contain chloroplasts that are sites for photosynthesis.
Guard cell
Modification:
- Have thicker inner walls and thinner outer walls to allow them to stretch unevenly when turgid to open stomata;
- Have numerous chloroplasts, to carry out photosynthesis, forming sugars to control the opening and closing of stomata;
Function
- Control the opening and closing of stoma
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