English

What is Pollination? How Does Pollination Occur? - Science

Advertisements
Advertisements

Question

What is pollination? How does pollination occur?

Advertisements

Solution

Pollination is the transfer of pollen grains from the stamen to the stigma of the pistil. Pollination occurs when pollen grains are carried from the anther to the stigma by insects, birds, wind or water.

shaalaa.com
  Is there an error in this question or solution?
Chapter 3: How do Organisms Reproduce? - Exercise 2 [Page 170]

APPEARS IN

Lakhmir Singh Biology (Science) [English] Class 10
Chapter 3 How do Organisms Reproduce?
Exercise 2 | Q 54.2 | Page 170

Video TutorialsVIEW ALL [1]

RELATED QUESTIONS

Name the parts A, B and C shown in the diagram and write their functions.


Name the parts A, B and C shown in the following diagram and state one function of each.


A student identified the various parts of an embryo of a gram seed and listed them as given below :

(I) Testa

(II) Plumule

(III) Radicle

(IV) Cotyledon

(V) Tegmen

Out of these the actual parts of the embryo are :

(A) I, II, III

(B) II, III, IV

(C) III, IV, V

(D) II, IV, V


What are the reproductive organs in a flower?


Fill in the following blank with suitable word :

The female organ of reproduction in the flower is the...........


What is made in ovary of a flower?


How is the process of pollination different from fertilization?


 Give some examples of different modes of fertilisation in nature?


What is seed? What are the parts of a seed? Explain with the help of a labelled diagram.


Name the part of a seed which contains stored food.


What is meant by 'unisexual flowers' and 'bisexual flowers'? Give two examples of each.


The flask-shaped organ A at the centre of a flower is surrounded by a number of little stalks B having swollen tops which lie just inside the ring of petals.
(a) Name A. What are the various parts of A?
(b) Which part of A contains gametes?
(c) Name B. What is the swollen top of B known as?
(d) What does the swollen top of b contain?
(e) Out of A and B, which one is (i) male part, and (ii) female part of the flower?


The male reproductive part of a flower is ______.


How many middle layers are generally present in the wall of the anther lobes?


The 3-celled egg apparatus at the micropylar end comprises of ______


Variations occur as a result of ______ 


Double fertilization is essential for formation of ______.


Give any two examples of agents of pollination.


The figure below shows the concept of double fertilization. Complete the flow chart showing the progress at each step:


  • Assertion: Primary endosperm nucleus is diploid.
  • Reason: It is the product of double fertilisation.

Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×