Advertisements
Advertisements
Question
Vegetative propagation refers to formation of new plants from
Options
stem, roots and flowers
stem, roots and leaves
stem, flowers and fruits
stem, leaves and flowers
Solution
stem, roots and leaves
Explanation -
Vegetative propagation is a form of asexual reproduction in plants in which new plants arise from vegetative parts such as stem, roots and leaves, buds etc. Flower is a reproductive part of the plant that is involved in sexual reproduction.
APPEARS IN
RELATED QUESTIONS
Study the following diagrams showing various stages of binary fission in Amoeba:
The correct sequence of these diagrams should be:
(A) I, IV, III, II, V
(B) I, III, IV, II, V
(C) I, II, IV, III, V
(D) I, II, III, IV, V
On cutting the body of an organism into many pieces it was observed that many of these pieces developed as new individuals. Name the process and list two organisms in which this process may be observed. Draw a schematic diagram to illustrate the changes that are likely to be observed during the development of new individuals in any one of the organisms named.
Vegetative propagation involves the growth and development of 'something' present in the old part of the plant to form a new plant. What is this 'something'?
The stem of a fruit tree X fixed in soil is cut in a slanting way. The upper part of stem of another fruit tree Y of different variety of same species is also cut in a slanting way. The cut stem of tree Y, without roots but having some leaves, is placed over the rooted cut stem of tree X in such a way that their cut surfaces fit together properly. While joining the two cut stems, care is taken to make sure that the layer Z of one cut stem is in contact with layer Z of the other cut stem. The joint of cut stem is bound tightly with a piece of cloth and covered properly with polythene. Soon the cut heals and the two stems grow together and become one fruit tree producing leaves, flowers and fruits.
(a) What is the name of this method of producing plants or trees?
(b) What name is given to the cut stem of tree X having roots?
(c) What name is given to the cut stem of tree Y which has no roots but has some leaves?
(d) Name the layer Z.
(e) Why should the layer Z of one cut stem be in contact with the layer Z of the other cut stem?
(f) Name any four fruit trees which are usually bred by this technique.
(g) State any one advantage of producing fruit trees by this technique.
Why is it disadvantageous to grow plants vegetatively?
Define the following:
Budding
Explain the process of binary fission in bacteria.
Following diagrams were drawn by different student on having seen prepared slides of budding in yeast.
Correct diagrams are
(A) I, II, III
(B) II, III, IV
(C) III, IV, V
(D) I, IV, V
Fill in the blanks and rewrite the completed statements:
___________ acid inhibits growth leading to wilting of leaves.
Can you consider cell division as a type of reproduction in unicellular organism? Give one reason.
