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प्रश्न
Fill in the blanks and rewrite the completed statements:
___________ acid inhibits growth leading to wilting of leaves.
उत्तर
Abscissic acid inhibits growth leading to wilting of leaves.
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संबंधित प्रश्न
For binary fission, Amoeba required .................... parent cells.
(a) Three
(b) Two
(c) One
(d) Zero
When you study a slide showing different stages of budding in yeast, you observe the following stages:-
I. The bud may get separated from the parent body and develop into a new individual.
II. The body of the bud develops and gives rise to another baby bud.
III. A bud comes out in any direction from the body of the parent cell.
IV. Thus they may form a colony.
The proper sequence of the above stages is
(A) II, I, III, IV
(B) II, III, I, IV
(C) III, II, l, IV
(D) III, I, II, IV
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.
State two disadvantages of vegetative propagation?
Describe reproduction by spores in Rhizopus
Name the asexual method of reproduction in yeast.
Name the asexual method of reproduction in Plasmodium.
Name the natural method by which strawberry plants are propagated.
Explain how new Bryophyllum plants can be produced from the leaves of the old plant. Illustrate your answer with the help of a labelled diagram.
How can you grow money plant by vegetative propagation?
Describe the grafting method for the artificial propagation of plants with the help of labelled diagrams.
Name two fruit trees which are usually propagated by grafting method.
The thread like structures that develop on a moist slice of bread in Rhizopus are ______.
Spore formation is the most common asexual method of reproduction in :
(a) protozoa
(b) tubers
(c) fungi
(d) algae
An organism having a whip-like structure at one end which reproduces by the process of binary fission is :
(a) Hydra
(b) Paramecium
(c) Leishmania
(d) Plasmodium
Write a short note on Bryophyllum.
Fill in the blank:
Amoeba reproduces by _________.
Fill in the blank:
Budding produces cells of __________ size.
State whether the following statement IS true (T) or false (F):
Asexual reproduction is more common than the sexual reproduction.
State whether the following statement is true (T) or false (F):
Cutting and grafting are natural means of reproduction.
Define the following:
Grafting
Mention the common method of reproduction in Bacteria.
Name the method by which hydra reproduces. Is this method sexual or asexual?
After viewing different slides, a student draws following diagrams. Select the one which depicts binary fission in Amoeba:
(A) a
(B) b
(C) c
(D) d
What is meant by asexual reproduction?
From the following diagrams, select the correct ones showing stages of binary fission in Amoeba:
(A) I, II, III
(B) IV, II, III
(C) V, II, III
(D) IV, I, III
In which of the following figures is budding not shown?
(A) I
(B) II
(C) III
(D) IV
Binary fission is observed in which one of the following figures?
Write various advantages of vegetative propagation.
Name the parts of the plants used to grow following flower: Dahlia
Name the parts of the plants used to grow following flower: Rose
Give the name of the plant that reproduces vegetatively by: Grafting
Describe the process of fertilization in angiosperms with the help of a diagram.
This method of asexual reproduction is seen in paramoecium.
Explain the importance of the reproduction process.
A piece of wet bread or bhakri kept in a humid place for 2-3 days, then
- What will you observe?
- State the scientific name of the living organism and write its characteristics.
Which of the following methods of asexual reproduction are observed in lower organisms?
Can you consider cell division as a type of reproduction in unicellular organism? Give one reason.
Rajesh observed a patch of greenish black powdery mass on a stale piece of bread.
Name the organism responsible for this and its specific mode of asexual reproduction.
