Standard 10th Science Biology Experiment 2 Study of Binary Fission in amoeba and Budding in Hydra Practical Answer Solutions.
Aim :
To study (1) Binary fission in Amoeba and (2) Budding in Hydra with the help of permanent slides.
Requirements :
Slides of binary fission in Amoeba and budding in Hydra, compound microscope.
Procedure :
(1) Observe the slides showing binary fission in Amoeba and budding in Hydra under a compoundmicroscope. (2) Arrange the mirror and the objective lens of the compound microscope.(3) First, adjust the slides under low power objective lens. If needed shift to high power objective lens. Notedown the observations.
1. Binary fission in Amoeba
Diagram :
Label the different parts in the given diagram. Mother Amoeba Daughter Amoeba Nuclear division
Binary fission in Amoeba
Observations : Strike out the incorrect word :
(1) Binary fission of Amoeba starts with the division of nucleus/cell wall.(2) Binary fission is type of mitotic/meiotic cell division.(3) By binary fission one Amoeba gives rise to two/four daughter Amoebae.
Inference :
Binary fission and budding are types of asexual reproduction
2. Budding in Hydra
Diagram: Lable the different parts in the given diagram
Observations : Strike out the incorrect word:
(1) During reproduction, outgrowth developed on body of Hydra is called bud / tentacle.
(2) The bud of Hydra is multicellular / unicellular.
(3) Young Hydra remain attached on / detaches from parent Hydra and starts independent life.
Inference : Both binary fission and budding are asexual modes of reproduction.
Multiple Choice Questions
Choose the correct alternative and write its letter (A), (B), (C), (D) in the box :
1. For observation of the Hydra bud clearly, first focus under the low power lens and then underthe high power lens in order to observe .
(A) the minute part in less area (B) the wide area (C) more buds (D) all of these
Answer: A
2. Which stain will clearly show Amoeba and Paramoecium in a drop of water taken on a slide andobserved under a microscope?
(A) Methylene blue (B) Iodine (C) Safranin (D) Eosin
Answer: A
3. What is the type of reproduction in Hydra?
(A) Binary fission (B) Budding (C) Multiple fission (D) None of these
Answer: B
4. A slide of Amoeba with elongated nuclei represents which of the following ?
(A) Budding (B) Multiple fission (C) Binary fission (D) Regeneration
Answer: C
5. Which of the following is a unicellular fungus that shows budding ?
(A) Mucor (B) Yeast (C) Amoeba (D) None of these
Answer: B