Bio ( Experiment 4 )

AIM: To study binary fission in Amoeba and budding in yeast. -------------------------------------------------------------------------------1. Out of two daughter cells produced as a result of binary fission in AMOEBA, a. One is small and the other is large b. one is uninucleate and the other is without nucleus. c. one is spherical and the other is irregular d. the two are equal sized and identical

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2. Name the most common type of asexual reproduction in Amoeba. a. budding b. binary fission

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c. spore formation d. vegetative propagation 3. Budding results in the production of new individual a. due to sexual reproduction in parents b. from an outgrowth of parent individual c. having no nucleus d. from germinating spores 4. Budding occurs in a. yeast b. hydra c. both (a) and (b)

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d. amoeba 5. Budding yeast is an a. an alga b. a protozoan c. a bacteria d. a fungi

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6. Amoeba and Yeast are a. unicellular organism

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b. multicellular organism c. prokaryotic organism d. protozoan 7. The prokaryotic organism that reproduces by binary fission a. Amoeba b. Bacteria

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c. Yeast d. Hydra 8. The fungus Saccharomyces is also known as a. black mould b. blue mould c. mushroom d. budding yeast

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9. In which of the following reproduction parental identity is maintained? a. binary fission

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b. budding c. multiple fission d. all of these 10. A student confirms binary fission process in a unicellular organism after observing a slide under microscope. He might have observed the following a. an organism with two nuclei with constriction in between b. an organism having elongated nucleus with constriction in between c. may be any of the above

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d. none of these 11. Binary fission starts in an Amoeba with the a. constriction in its cell membrane b. elongation of its nucleus c. two Amoeba come closure d. none of these

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12.A student is given permanent slide showing Amoeba. The following are the steps in focusing the object under the microscope. (I) place the slide on the stage; look through the eye piece and adjust the mirror and diaphragm to get even illumination. (II) Look through the eye piece and raise the objective using coarse adjustment until the object is focused. (III) Make the focus sharp with the help of fine adjustment. (IV) look through the eye piece and move the slide until the object is visible. The proper sequence of step is a. I, III, IV, II b. II, III, IV, I c. IV, III, II, I d. I, IV, II, III

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