Organisation of plant tissues C1.1

Question 1

What meristematic tissues consists of?

Answer 1

Apical and Lateral meristematic tissues.

Question 2

Name permanent tissues.

Answer 2

Epidermal, ground and vascular tissues.

Question 3

Vascular tissues.

Answer 3

Xylem and phloem.

Question 4

Ground tissues.

Answer 4

Sclerenchyma, collenchyma and parenchyma tissues.

Question 5

Define permanent tissues.

Answer 5

Matured plants which have experienced differentiation.

Question 6

Function of epidermal tissues.

Answer 6

Have cuticle that can reduce transpiration, protects the leaf from pathogens and injuries.

Question 7

Name the modified epidermal cells.

Answer 7

Guard cells (controls the opening of stomata) and root hair cells (increase the surface area of root to maximize the water and mineral salt absorption)

Question 8

Function of sclerenchyma.

Answer 8

Consists of dead cells when matured and the thickest among other ground tissues to provide mechanical support.

Question 9

Function of parenchyma.

Answer 9

Have the thinnest cell walls, help in the storage of starch and sugar and involved in gaseous exchange.

Question 10

Function of collenchyma.

Answer 10

Made of living cells that will mature into more flexible cells and have their cell wall made of pectin and hemicellulose to provide mechanical support and elasticity.

Question 11

Function of xylem.

Answer 11

Made up of dead cells without cytoplasm. Cell wall contain lignin. Consists of xylem vessels that are hollow and connected to each other from the roots to all parts of plants. This enables the xylem to transport water and mineral salt.

Question 12

Function of phloem.

Answer 12

Made of companion cells and sieve tubes that are of living cells. Transport sugars/organic compound created from photosynthesis to all parts of the plant.