Reproduction in plants

Question 1

What do you mean by vegetative propogation?

Answer 1

The production of new individuals from the vegetative parts of a plant such as roots, stem, leaves and budds.

Question 2

Give example for Vegetataive propgation by
a) roots
b) stems
c) leaves

Answer 2

a) Sweet Potato, Dahila
b) Rose, champa
c) Bryophyullum

Question 3

Descibe fragmentation and Budding.

Answer 3

1) Fragmentation- The process in which an organism gets break into two or more fragments and each fragment have the potential to grow into a new organism. Example: Spirogyra

2) Budding is the process in which a bulb like projection devlops on the parent body which eventually detaches from the parent body when it becomes mature anf grows into a new kind.
Example: Yeast

Question 4

What is pollination?

Answer 4

Pollination is the transfer of pollen grains which contain male gamets (sex cells) from the male part (anthe)r to the female part of a flower (stigma)

Question 5

Differentaiate between self pollination and cross pollination.

Answer 5

Self Pollination- When the pollen grains from anther lands on the stigma of the same flower or another flower of the same plant. It happen only in bisexual flowers.

Cross pollination- When the pollen grains lands on the stgma of another flower of the same kind it is called cross pollination. It occurs in both self and cross pollinaton.

Question 6

What is fertilisation?

Answer 6

The union or fusion of the male and female gametes to form a single cell called zygote. In this process the male gamete fertilizes the female gamete.

Question 7

Fertilized egg is called _________.

Answer 7

zygote

Question 8

Give examples of seeds dispersed by:
a) wind
b) water
c) animals
d) brusting

Answer 8

a) drumstick, maple
b) coconut, palm
c) Xanthium, urena
d) castor, balsam