Plant Cell Organisation

Question 1

State the plant tissues

Answer 1

epidermal spongy mesophyll palisade mesophyll meristem xylem phloem

Question 2

State the tissues in leaves

Answer 2

Epidermal Palisade mesophyll Spongy mesophyll Xylem Phloem

Question 3

Epidermal tissue

Answer 3

covers the whole plant covered by a waxy cuticle which helps prevent water loss by evaporation

Question 4

Upper epidermis

Answer 4

transparent so that light can pass through it and be absorbed for photosynthesis at the palisade layer

Question 5

Palisade layer

Answer 5

contains lots of chloroplasts (with chlorophyll) to absorb sunlight they are close to the top surface where they can get the most light

Question 6

Xylem and phloem

Answer 6

form a network of vascular bundles transport water and nutrients around the body take glucose produced in photosynthesis away provide support for the structure

Question 7

Lower epidermis

Answer 7

full of little holes called the stomata (controlled by guard cells) which allow exchange of gases and controlled water loss

Question 8

Spongy mesophyll

Answer 8

has many air spaces between cells to allow for a large surface area to increase the rate of diffusion of gases in an out of cells

Question 9

Draw the structure of a leaf

Answer 9