Advertisements
Advertisements
Question
In what ways is fertilisation in a plant similar to fertilisation in a human?
Advertisements
Solution
The process of fertilisation is similar in plants and humans as both involve male and female gametes and show internal fertilisation.
APPEARS IN
RELATED QUESTIONS
Match the following:
| Column A | Column B |
| (i) Stigma | (a) Neuron |
| (ii) Pepsin | (b) Carpel |
| (iii) Dendrites | (c) Protein |
| (d) Stamen |
Name the parts A, B and C shown in the diagram and write their functions.

Fill in the following blank with suitable word :
The female organ of reproduction in the flower is the...........
Draw a neat sketch of the carpel of a flower. Mark in it stigma, style and ovary.
What is made in anther of a flower?
Which of the following statements are true for flowers?
(i) Flowers are always bisexual.
(ii) They contain sexual reproductive organs.
(iii) They are produced in all groups of plants.
(iv) after fertilization they give rise to fruits.
When an insect sits on the flower of a plant then some particles A present in the top of little stalks in the flower attach to its body hair. When this insect now sits on the flower of another similar plant, then particles A attached to the hair of insect are put on the top of a flask-shaped organ at the centre of flower. The particle A grows a long tube b from the top of flask-shaped organ through which C moves down and reaches the bottom part of flask-shaped organ. Here C fuses with the nucleus of d contained in structure E. the fusion of C and D forms a new cell f which grows and develops into a seed of the plant.
(a) What are particles A? What is the process of transferring A from one flower to another flower of similar plant by the insect known as?
(b) What is the name of tube B?
(c) What is C which moves down through the tube B?
(d) Name D and E.
(e) What is F?
In what ways is fertilisation in a plant different from fertilisation in a human?
Fill in the blank by selecting suitable word:
A flower bearing only male or female parts is known as __________ flower.
Mention the function of Stigma.
You have to perform the experiment, "To identify the different parts of an embryo of a gram seed." Describe the procedure that you would follow.
Draw a diagram of a pistil showing pollen tube growth into the ovule and label the following:
Pollen grain, male gamete, female gamete, ovary.
Draw a diagram of the longitudinal section of a flower and label on it sepal, petal, ovary and stigma.
Which of the following is not an unisexual flower?
a) Coconut
b) Papaya
c) Gulmohor
d) Maize
Draw a diagram of the longitudinal section of a flower and label the following parts.
Write the functions of sepals
Distinguish between self-pollination and cross-pollination.
Variations occur as a result of ______
Complete the table
| Carly x | ______ | ______ |
| ______ | petal | attract insects |
| Androecium | ______ | Male reproductive part |
| ______ | ______ | Female reproductive part. |
