B4.6 Tissues And Organs In Plants

Question 1

What is the function of leaves?

Answer 1

Site of photosynthesis requiring a lot of CO2 and Water

Question 2

How does the plant get CO2

Answer 2

Carbon dioxide diffusers directly into the leaf from the outside air through lots of little holes called stomata

Question 3

What is the function and adaption of the Epidermis (waxy cuticle) ?

Answer 3

Cover the surfaces and protect them

Clear wax

Question 4

What is the function and adaption of the palisade ?

Answer 4

Carry out photosynthesis

Lots of chlorophyll
Tightly packed at the top of the leaf

Question 5

What is the function and adaption of the sponges mesophyll?

Answer 5

Adaption: Air space and large SA diffusion

Question 6

What is the function and adaption of the Xylem ?

Answer 6

Carry water+ dissolved mineral ions from the roots up to the leaves

Lignin and hollow tube

Question 7

What is the function and adaption of the phloem ?

Answer 7

Carry dissolved food form the leaves around the plant

Loads of mitochondria
Sieve tubes