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Spore Formation

Students were...

Question

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.

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Solution

(a) A fine screw is used to focus the slides of budding in yeast under high power of a microscope.
(b)

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Q. A student is viewing under a microscope a permanent slide showing various stages of asexual reproduction by budding in yeast. Draw diagrams of what he observes (in proper sequence).

Q. A student was asked to focus a permanent slide under the high power of a microscope. This
involved the following steps which have not been written in a correct sequence :
(A) Place the slide on the stage
(B) Clean the microscope and lenses
(C) Focus the material with coarse adjustment
(D) Place the low power objective lens above the slide
(E) Sharpen the focus with fine adjustment
(F) Bring high power objective lens over the slide
Which one of the following is the correct sequence of steps for focusing the slide under high
power ?

Q. Name the process by which an amoeba reproduces. Draw the various stages of its reproduction in a proper sequence.

OR
A student is viewing under a microscope a permanent slide showing various stages of asexual reproduction by budding in yeast. Draw diagram of what he observes in proper sequence.

Q. A student is given permanent slide showing budding in yeast.
The following are the steps in focussing 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 illumination
(ii) Look through eye piece and raise the objective using coarse adjustment until
object is focussed
(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 steps is

Q. Write the stages observed while studying the permanent slide of budding in yeast.

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