Plant tissues and organs Flashcards
1
Q
What are plant tissues and organs
A
organs roots stem flowers leaves 
2
Q
leaf tissue
A
upper and lower epidermis- cover and protect the leaf. Can secrete a waxy substance
Thin upper epidermis- allows some light to penetrate through
Palisade mesophyll- Photosynthesis happens here.
Lots of chloroplasts- contain chlorophyll to absorb light,
Spongy Mesophyll- gas exchange by diffusion takes place
Stomata- control water loss.