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प्रश्न
Observe the given picture and answer the questions given below.
- State the type of reproduction.
- Identify the part of reproduction.
Sweet potato - _____________
Bryophyllum - _____________
Potato - _____________
उत्तर
- The type of reproduction shown in the diagram is vegetative propagation.
- Sweet potato - Vegetative propagation in sweet potato occurs by roots (adventitious buds on roots).
Bryophyllum - Vegetative propagation in Bryophyllum occurs by buds on the leaf margin.
Potato - Vegetative propagation in potatoes is occurs with the help of eyes (bud on potato) present on tuber.
APPEARS IN
संबंधित प्रश्न
Differentiate between 'stem tuber' and 'tuberous root'.
Vegetative propagation takes place with the help of leaves in _________ plant.
Students were asked to observe the permanent slides showing different stages of budding in yeast under high power of a microscope.
(A) Which adjustment screw (coarse/fine) were you asked to move to focus the slides?
(B) Draw three diagrams in correct sequence showing budding in yeast.
Draw a labelled diagram to show that particular stage of binary fission in amoeba in which its nucleus elongates and divide into two and a constriction appears in its cell membrane.
Explain how non-reproductive structures protect themselves and what is the function of the structures released from the 'blobs' in Rhizopus.
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
Identify the figures showing the process of budding in yeast.
(A) I, II and III
(B) II, III and IV
(C) I, II and IV
(D) III, IV and I
List four modes of asexual reproduction.
which can be grown from their leaves.
Which artificial propagation method is used for the production of jasmine plants?
How does an Amoeba reproduce? Describe the process of reproduction in Amoeba with the help of labelled diagrams of different stages in its reproduction process.
Name one unicellular organism which reproduces by the same asexual process as Hydra.
Name a tiny fresh-water animal which reproduces by the same method as that of yeast? What is this method known as?
What is meant by 'grafting' as a means of propagation in plants?
What is a 'cutting' in respect of plants for propagation purposes?
The unicellular organism which reproduces by budding is :
(a) Spirogyra
(b) Hydra
(c) Planaria
(d) Yeast
A feature of reproduction that is common to Amoeba, Yeast and Bacterium is that :
(a) they are all multicellular
(b) they are all unicellular
(c) they reproduce only sexually
(d) they reproduce asexually
Spore formation is the most common asexual method of reproduction in :
(a) protozoa
(b) tubers
(c) fungi
(d) algae
An alga which reproduces by the asexual reproduction method called fragmentation is :
(a) Rhizopus
(b) Salmonella
(c) Plasmodium
(d) Spirogyra
There are four tiny organisms A, B, C and D. The organism A is a parasitic protozoan which causes a disease known as kala-azar. The organism B is a microscopic single-celled animal which causes malaria disease in human beings. The organism C is a unicellular animal which can change its body shape according to need, it has no fixed shape. The organism D is also a unicellular animal which is slipper-shaped having a large number of tiny hair all around its body.
(a) Name the organisms A, B, C and D
(b) Name one characteristic body feature of organism A.
(c) Name the insect which carries organism B and transmits it from one person to another.
(d) What name is given to the asexual method of reproduction of (i) organism A, and (ii) organism B?
(e) Where do organisms C and D live?
Fill in the following blank with suitable word :
Fusion of gametes gives rise to a single cell called ............
Fill in the blank:
Budding produces cells of __________ size.
State whether the following statement is true (T) or false (F):
Reproduction by spores is a method of asexual reproduction.
State whether the following statement is true (T) or false (F):
A whole new plant can grow from the eye of a tuber.
Differentiate between the following:
Cutting and grafting
Mention the common method of reproduction in Mucor.
Why is vegetative propagation practiced for growing some types of plant? List two plants which are grown by this method.
Name a multicellular organism which reproduces by fragmentation method.
Name the mode of reproduction process seen in yeast.
Name the parts of the plants used to grow following flower: Dahlia
A method in which roots are induced on the stem while it is still attached to the parent plant is called
Name the hormone produced by unfertilised ovary responsible for enlargement of ovary into fruit.
Asexual reproduction occurs by __________ cell division.
Budding, in hydra, is a form of ______.
During favourable conditions, Amoeba reproduces by ______
In an asexually reproducing species, if a trait X exists in 5% of a population and trait Y exists in 70% of the same population, which of the two trait is likely to have arisen earlier? Give reason.
Which one of the following pairs is wrongly matched while the remaining three are correct?
