Download App

Sexual Reproduction in Flowering Plants — BIOLOGY STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 ScienceBIOLOGYSexual Reproduction in Flowering Plants3 Marks
Question
Differentiate between pollination and fertilization is angiosperms.
✓

Answer

Differences between pollination and fertilization in angiosperms : 
S.No.Pollination FertilizationPollination Fertilization
1It is the transfer of pollen grains from anther to stigma of same or different flowers of plants.It is the process of fusion of male gamete with female gamete to produce zygote.
2It is the prefertilization product.It is the post-pollination process.
3It occurs by the agency of wind, water, insects, birds, molluscs, bats etc.It does not require any external agency.
4It completes in outer parts or organs of flowers. Therefore, it is the external process.It occurs inside the flower hence it is internal process.
5No pollen tube is formed.Pollen tube is formed by which male gametes reach egg cell.

 

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "3 Marks Question" from Sexual Reproduction in Flowering Plants→Sexual Reproduction in Flowering Plants — all question types→BIOLOGY STD 12 Science question papers→Gujarat Board STD 12 Science question papers→Gujarat Board question paper generator→

Similar questions

Seeing a crowd of students in one corner of the school, the principal rushed to see the matter and found some children beating and chasing a small lizard. On seeing the principal, all the children fled to their classes except Alok who requested the principal to arrange for some medical assistance for the injured animal. The principal rewarded Alok for his attitude to save guard our biodiversity.
  1. Mention the factors resulting in loss of biodiversity
  2. Was Alok an indisciplined boy, who did not run to the class on seeing the principal? What values does the act promote?
→
Trace the life-cycle of malarial parasite in the human body when bitten by an infected female Anopheles.
→
Define transformation in Griffith's experiment. Discuss how it helps in the identification of DNA as the genetic material.
→
A large number of married couples the world over are childless. It is shocking to know that in India the female partner is often blamed for the couple being childless.
  1. Why in your opinion the female partner is often blamed for such situations in India? Mention any two values that you as a biology student can promote to check this social evil.
  2. State any two reasons responsible for the cause of infertility.
  3. Suggest a technique that can help the couple to have a child where the problem is with the male partner.
→
Cold medications may contain antihistamines. What effect does this medication have on cold symptoms?
→
How does the study of different parts of a flower help in identifying in wind as its pollinating agent?
→
On his visit to a national park, Harshendra was very angry as the forest authorities did not allow him to enter a specified area. On returning back, he discussed the matter with his friend, who explained him the reason.
  1. Which category of conservation strategy does national park belong?
  2. Name India's first national park.
  3. At present, there are how many national parks in India?
  4. What values are shown by Harshendra's friend?
→
Write the differences between wind-pollinated and insect-pollinated flowers. Give an example of each type.
→
Name the polymerase which is generally used in PCR? What is the source of this enzyme?
→
"Prevention is better than cure' is an apt slogan to safeguard adolescents from drug abuse. List any six steps that could be taken in this regard.
→