English

Explain the importance of the reproduction process. - Science and Technology 2

Advertisements
Advertisements

Question

Explain the importance of the reproduction process.

Short Note

Solution

Importance of reproduction:

  1. It helps in the process of evolution.
  2. It also helps in existence/survival of a species of an organism.
shaalaa.com
  Is there an error in this question or solution?
Chapter 3: Life Processes in Living Organisms Part - 2 - Solve the following questions

APPEARS IN

SCERT Maharashtra Science and Technology 2 [English] 10 Standard SSC
Chapter 3 Life Processes in Living Organisms Part - 2
Solve the following questions | Q 9.2

RELATED QUESTIONS

For binary fission, Amoeba required .................... parent cells.
(a) Three
(b) Two
(c) One
(d) Zero


…………. is a mode of asexual reproduction.
(a) Cloning
(b) Budding
(c) Pollination
(d) Germination


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.


What is multiple fission?


How does multiple fission occur in an organism? Explain briefly.


Name the following : 'Blobs' that develop at the tips of the non-reproductive threads in Rhizopus.


Explain the process of regeneration in Planaria.


A tadpole develops into an adult frog by the process of ______.


Describe reproduction by spores in Rhizopus


Name the artificial propagation mehod used for the propagation of apple trees.


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.


What is yeast? Describe the process of reproduction in yeast with the help of labelled diagrams.


Describe the cuttings method for the artificial propagation of plants. Illustrate your answer with the help of labelled diagrams.


In Spirogyraasexual reproduction takes place by :
(a) division of a cell into two cells
(b) breaking up of filaments into smaller bits
(c) division of a cell into many cells
(d) formation of a large number of buds


The two organisms which can regenerate fully from their cut body parts are :
(a) Paramecium and Hydra
(b) Hydra and Amoeba
(c) Planaria and Leishmania
(d) Hydra and Planaria


Briefly explain why a gardener prefers to grow certain plants vegetatively?


Write a short note on Micro propagation.


State whether the following statement is true (T) or false (F):

Bacteria and yeast reproduce by sexual reproduction.


Mention the common method of reproduction in Mango.


Mention the common method of reproduction in Bougainvillea.


Name the method by which hydra reproduces. Is this method sexual or asexual?

 

 

What happens when a mature spirogyra filament attains considerable length?


What happens when on maturation sporangia burst?


Write a short note on regeneration.


Name four plants which can be propagated by stem-cutting.


Name the parts of the plants used to grow following flower: Lily


Give the name of the plant that reproduces vegetatively by: Bulbils


Porogamy refers to entry of pollen tube through ____________.


Why anther is called as tetrasporangiate structure?


Which of the following is not a type of asexual reproduction in multicellular organisms?


This method of asexual reproduction is seen in paramoecium.


Asexual reproduction is also known as ______.


During favourable conditions, Amoeba reproduces by ______


A feature of reproduction that is common to Amoeba, Yeast, and Spirogyra is that ______ 


Spirogyra reproduce by ______ 


In Spirogyra, asexual reproduction takes place by 


In the diagram given in Figure 12.2 label the parts marked (a), (b) and (c).


What do the following parts of a flower develop into after fertilisation?

a. Ovary ______
b. Ovules ______

Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×