xylem

Question 1

what are some structural adaptations of the xylem?

Answer 1

1. continuous lumen without cross walls and protoplasm
2. cellulose cell walls are further lignified and have lignin deposits

Question 2

what are the functions of these structural adaptations?

Answer 2

1. helps to conduct water and mineral ions from roots to the other parts of the plant
2. reduces resistance
3. provides mechanical support to the plant to stand upright due to the lignin’s great tensile strength

Question 3

what are the types of lignin?

Answer 3

helical and annular lignin