Internal Structure Of Leaf

Question 1

What is the upper epidermis?

Answer 1

It is a single layer of closely packed cells covered by cuticle

Question 2

What is the lower epidermis?

Answer 2

Same as the upper epidermis but it had openings called stomatas

Question 3

What are the 2 types of mesophyll tissues?

Answer 3

Palliside tissue and Spongy Tissue

Question 4

What is the palliside tissue?

Answer 4

It is a couple of layers of closely packed cells, is long and cylindrical and has numerous chloroplasts

Question 5

What is the spongy tissue?

Answer 5

These tissues are irregular and loosely arranged, they’re roun and have chloroplast

Question 6

What does the cuticle do?

Answer 6

It protects the leaf, prevents excessive water loss and focuses light on the mesophyll layers

Question 7

State 2 differences between epidermal and guard cells

Answer 7

Guard cells are bean shaped whereas epidermal cells are irregular. Guard cells have chloroplast whereas epidermal cells don’t