Leaf Structure

Question 1

What is a leaf?

Answer 1

Organ

Question 2

Leafs structure is

Answer 2

Broad and flat to capture sunlight

Question 3

Function of veins

Answer 3

Carry water and food around the leaf and rest of plant.

Question 4

Only some plants have

Answer 4

Chlorophyll & Chloroplasts

Question 5

Describe the Stomata

Answer 5

Small holes on the underside of the leaf structures. Allows certain gasses in and out

Question 6

First Layer of leaf structure =

Answer 6

Cutile = layer of wax, prevents water loss via evaporation. Transparent to allow light into cell.

Question 7

Wax is

Answer 7

Hydrophobic = Repels Water

Question 8

2 types of veins

Answer 8

Phloem = Transports glucose down the leaf

Xylem = Transports H2O & Minereals up the leaf

Question 9

Guard Cells =

Answer 9

Surrond stoma in lower surface

Changes shape to open and close the stoma

Question 10

Epidermises

Answer 10

Upper = Protective layer lets sunlight through to cells.

Lower = Same thing but has stomata

Question 11

Spongy mesophyll layer =

Answer 11

Where photosynthesis occurs & contains veins and guard cells

Question 12

What is glucose for?

Answer 12

ATP energy to be formed for cellular respiration

Growth

Nutrients

Storage for startch and more