dermal tissue system

Question 1

purpose of epidermis tissue

Answer 1

primary growth: protects plant from sun, water, pests, outermost layer

Question 1

cuticle

Answer 1

epicuticular wax (waxy coating)
thickness depends on sun and shade
plants adapt based on conditions of sun and water

Question 2

guard cells

Answer 2

regulate stomata, which control the movement of gases and water vapor

Question 3

trichomes

Answer 3

protection and absorption of water and minerals, fuzziness on leaves (hairs) –> can help capture insects

unicellular, multicellular, glandular (secretes a substance)

Question 4

purpose of periderm tissue

Answer 4

secondary growth: beneath epidermis, deeper in bark; replaces epidermis as protective tissue in roots and stems

Question 5

cork cells

Answer 5

form protective/water resistant material in periderm

Question 6

cork cambium cells (phellogen)

Answer 6

produces cork cells

Question 7

phelloderm

Answer 7

thin layer of tissue between periderm layers