Growth of the pollen tube towards the ovule occurs due to what?
Answer and explanation
Correct answer: Due to chemical signals
The governing concept is chemotropism, in which growth is directed by chemical substances. During reproduction in flowering plants, chemical signals associated with the ovule and female tissues guide the pollen tube through the style toward the ovule, allowing the male gametes to reach the embryo sac. Light, gravity and touch are not the primary directional cues in this case. Therefore option B is correct, and the item also connects directly with plant reproduction.
Frequently asked questions
What is the correct answer to this question?
Due to chemical signals
Why is this the correct answer?
The governing concept is chemotropism, in which growth is directed by chemical substances. During reproduction in flowering plants, chemical signals associated with the ovule and female tissues guide the pollen tube through the style toward the ovule, allowing the male gametes to reach the embryo sac. Light, gravity and touch are not the primary directional cues in this case. Therefore option B is correct, and the item also connects directly with plant reproduction.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: World of Living. Topic: Reproduction.
Student feedback
Was this question useful?
👍 0 Helpful 👎 0 Not helpful
Yes 0% No 0%
0 responsesStudent Reviews
No published reviews yet.
