Parts of a Leaf
- Created by: Jag.X
- Created on: 22-10-18 21:10
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- leaf = primary photosynthetic organ of the plant
- consists of a flattened portion, called blade
- attached to plant by petiole
- sometimes = divided into leaflets
- leaves w/ sing undivided blade = simple
- 2+ leaflets = compound
- thin so light can pass through easily
- large SA to absorb more light
Waxy Cuticle
- transpiration = loss of water from leaves by evaporation through stomata
- stops water vapour from escaping through the epidermis
- protects leaf from infections, but doesn't block light
- plants within water don't have a waxy cuticle
Upper Epidermis
- transparent: light can pass through to palisade layer and chloroplasts
- few chloroplasts
Chloroplasts
- near top so they can get light
- contain chlorophyll
Xylem
- part of vascular bundle
- vessels in tissue
- …
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