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Take the prepared slide of Euglena and focus it first under low power and next under the high power of tlie microscope. Observe tlie following characteristics:
i) Euglena is an oval spindle shaped organism with a blunt anterior end and a pointed posterior end.
ii) Body is externally covered with a pellicle.
iii) Underneath the pellic le the cytoplasm is clearly differentiated into an outer ectoplasm and an inner endoplasm.
iv) Anterior end of the body bears an opening cytostome, which continues illternally as a tubular cytopharynx. The cytopllarynx leads into a large splier ical reservoir.
v) From the base of the reservoir a single whip-like flagellum arises.
vi) A single large spherical nucleus is located towards the posterior region of the body.
The quartenary structure of a holoenzyme contains four long polypeptide subunits composed of non-polar, polar and charged amino acids. All subunits are properly folded and function
Define the term - Sulphur Sulphur is found in small amounts in soil perhaps 0.15% only. A large part of sulphur used by plants comes from decomposing organic matter or from f
Why is cannibalism an inharmonious intraspecific ecological interaction? In cannibalism an individual eats other of the same species (occurs in some insects and arachnids). Sin
Give an example of how two organisms are interdependent. Animals generate carbon dioxide and water, which is required by plants. Accept all reasonable answers.
Phytoplankton Stage - Hydrarch In this initial stage, the pond water is poor in nutrients and is devoid of much life. At this stage, the water is incapable of supporting large
write a note on mode of nutrition
Q. How do antibody-based tests detect how HIV infection works? Subsequent to the infection by the HIV the immune system begins the production of antibodies (primary immune resp
Explain Suturing - Endodontic Surgery a. Purpose of suturing: approximation of inside tissues and stabilize the flapped mucoperiosteum b. Major problem of suturing in oral t
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Explain the working of Conical Flasks? Conical flasks of different volumes can be used for media preparation and also for culturing large amount of microorganisms in liquid med
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