11 grade biology others
Why is lignin present in the xylem?
Why is lignin present in the xylem?
1 Answer
Askiitians Tutor Team
Lignin is present in the xylem to provide structural support and to help water-proof the cell walls, allowing them to withstand the high pressure generated as water is transported upward through the xylem vessels. This polymer strengthens the cell walls, preventing collapse and ensuring the stability of the xylem tissue, which is crucial for the efficient transport of water and minerals from the roots to the rest of the plant. Additionally, lignin also contributes to the overall rigidity and mechanical strength of the plant, providing support for its upright growth.
Other Related Questions on 11 grade biology others
Which of the following is a component of ETS in mitochondria?
- A. Phytochrome
- B. Plastocyanin
- C. Cytochrome oxidase
- D. Carotenoids
Which of the following is a component of ETS in mitochondria?
- A. Phytochrome
- B. Plastocyanin
- C. Cytochrome oxidase
- D. Carotenoids
Grade 1111 grade biology others
Last Activity: 9 Months ago
Which of the following is an example of a producer?
- A) Sun
- B) Fern
- C) Chestnut
- D) Ant
Which of the following is an example of a producer?
- A) Sun
- B) Fern
- C) Chestnut
- D) Ant
Grade 1111 grade biology others
Last Activity: 9 Months ago
Which of the following is an incorrect match for chlorophyll type?
- A. Chlorophyll a- green algae
- B. Chlorophyll d- diatoms
- C. Chlorophyll c- diatoms and brown algae
- D. Chlorophyll d- Red algae
Which of the following is an incorrect match for chlorophyll type?
- A. Chlorophyll a- green algae
- B. Chlorophyll d- diatoms
- C. Chlorophyll c- diatoms and brown algae
- D. Chlorophyll d- Red algae
Grade 1111 grade biology others
Last Activity: 9 Months ago
Which of the following is an r-strategist?
- A) Human
- B) Insect
- C) Rhinoceros
- D) Whale
Which of the following is an r-strategist?
- A) Human
- B) Insect
- C) Rhinoceros
- D) Whale
Grade 1111 grade biology others
Last Activity: 9 Months ago
Which of the following is correct about a flower? It is a modified
- (a) Root
- (b) Shoot
- (c) Leaf
- (d) Inflorescence
Which of the following is correct about a flower? It is a modified
- (a) Root
- (b) Shoot
- (c) Leaf
- (d) Inflorescence
Grade 1111 grade biology others
Last Activity: 9 Months ago