English
Maharashtra State BoardSSC (English Medium) 10th Standard

Distinguish between self-pollination and cross-pollination. - Science and Technology 2

Advertisements
Advertisements

Question

Distinguish between self-pollination and cross-pollination.

Short/Brief Note
Advertisements

Solution

In self-pollination, only one or two flowers borne on the same plant are involved, whereas in cross-pollination two flowers borne on two plants of same species are involved.

shaalaa.com
  Is there an error in this question or solution?
Chapter 3: Life Processes in Living Organisms Part - 2 - Solve the following questions

APPEARS IN

SCERT Maharashtra Science and Technology 2 [English] 10 Standard SSC
Chapter 3 Life Processes in Living Organisms Part - 2
Solve the following questions | Q 2

Video TutorialsVIEW ALL [1]

RELATED QUESTIONS

A student was asked to observe and identify the various parts of an embryo of a red kidney bean seed. He identified the parts and listed them as under:

I. Tegmen

II. Testa

III. Cotyledon

IV. Radicle

V. Plumule

The correctly identified parts among these are

(A) I, II and III

(B) II, III and IV

(C) III, IV and V

(D) I, III, IV and V


How does fertilisation occur in flowers? Name the parts of the flower that develop into (i) seed, and (ii) fruit after fertilisation.


(i) Name the part marked 'A' in the diagram.

(ii) How dose 'A' reachese part 'B'?

(iii) State the importance of the part 'C'.

(iv) What happens to the part marked 'D' after fertilisation is over?


Give one example of a unisexual flower.


Mention the changes a flower undergoes after fertilisation.


Write the names of those parts of a flower which serve the same function as the following do in the animals :

(i) testis,

(ii) sperm,

(iii) ovary,

(iv) egg


The anther contains ______.


The fusion of male and female gametes is termed as ______.


Explain what you understand by sexual reproduction.


How does the process of fertilisation take place in flowers?


Name the part made up of the stigma, style and ovary.


What is the function of a flower?


What is the name of female organ of a flower (other than carpel)?


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


In the figure given alongside, the parts marked A, B and C are sequentially :
(a) cotyledon, plumule and radicle
(b) plumule, radicle and cotyledon
(c) plumule, cotyledon and radicle
(d) radicle, cotyledon and plumule


The correct sequence of reproductive stages occurring in flowering plants is ______ 


Put a tick mark (✓) against the correct alternative in the following statement

Reproductive whorls of a flower are:


State whether the following statement is true (T) or false (F):

Stamens make egg cells.


Mention the function of Anther.


Mention the function of Stigma.


Draw a labelled diagram of a bisexual flower.


Give one example each of unisexual and bisexual flowers. Differentiate between the two types of pollination that occur in flowers. What happens when a pollen lands on a suitable stigma? Write about the events that occur till the seed formation in the ovary.


Draw a diagram of the longitudinal section of a flower exhibiting germination of pollen on stigma and label (i) ovary, (ii) male germ-cell, (iii) female germ-cell and (iv) ovule on it.


Distinguish between unisexual and bisexual flowers giving one example of each. Draw a diagram showing process of germination of pollen grains on stigma and label the following parts:

(a) Female germ cell

(b) Male germ cell

(c) Ovary


What is phototropism?


Prepare a slogan for campaign against female foeticide.


Answer the following question.
List two agents of pollination?


Draw a neat and labelled diagram.

Double fertilization in angiosperms


Match the following

1. Petal Opuntia
2. Fern Chrysanthemum
3. Phylloclade Attracts insect
4. Hooks Spore
5. Sucker Bignonia

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


Pineapple fruit develops from ______.


Where is the zygote located in the flower after fertilization?


Double fertilization is exhibited by ______


Double fertilization is essential for formation of ______.


Triple fusion involves ______.


Name the reproductive parts of an angiosperm. Where are these parts located? Explain the structure of its male reproductive part.


Explain the post fertilization changes that occur in the ovary of a flower.


State the post-fertilisation changes that lead to fruit formation in plants.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×