Subject

Science

Class

TET Class 12

Pre Boards

Practice to excel and get familiar with the paper pattern and the type of questions. Check you answers with answer keys provided.

Sample Papers

Download the PDF Sample Papers Free for off line practice and view the Solutions online.
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 Multiple Choice QuestionsMultiple Choice Questions

1.

Which of the following method will you use to develop an aquarium?

  • Heuristic method

  • Problem solving method

  • Project method

  • Programmed method


2.

The concept of "Seed germination" can be best taught by

  • showing germinated seeds to the class and explaining the process of germination

  • presenting the different stages of germination through drawing on the board

  • showing photographs of seed germination

  • asking the students to sow seeds, observe and draw the different stages of germination


3.

Which of the following is immovable joint?

  • Pivot-joint between head and neck

  • Hinge-joint of elbow

  • Joint between skull bone

  • Ball and socket joint


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4.

Which blood corpuscle help in coagulation of blood?

  • Lymphocyte

  • Platelets

  • Monocyte

  • Red blood corpuscles


B.

Platelets

Coagulation is a complex process by which the blood forms clots to block and then heal a lesion/wound/cut and stop the bleeding. It is a crucial part of hemostasis - stopping blood loss from damaged blood vessels. In hemostasis, a damaged blood vessel wall is plugged by platelet and a fibrin-containing clot to stop the bleeding, so that the damage can be repaired. Coagulation involves a cellular (platelet) and protein (coagulation factor) component. When the lining of a blood vessel (endothelium) is damaged, platelets immediately form a plug at the site of the injury, while at the same time proteins in the blood plasma respond in a complex chemical reaction, rather like a waterfall, to form fibrin strands which reinforce the platelet plug.


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5.

In yeast asexual reproduction takes place through

  • Budding

  • Fission

  • Both (1) and (2)

  • None of these


6.

A person using a lens as a simple microscope sees an

  • inverted real image

  • inverted virtual image

  • upright real image

  • upright virtual image


7.

First time bacteria were observed by

  • Antony Von Leeuwenhoek

  • Louis Pasteur

  • Robert Hook

  • None of the above


8.

Maximum quantity of carbon is present in

  • petrol

  • kerosene

  • lubricant oil

  • ligroin


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9.

Conduction of thermal energy takes place in

  • solids

  • liquids

  • gases

  • All of these


10.

Which of the following topic is suitable for a unit plan?

  • The meaning and concept of the systems of the body.

  • The blood circulatory system

  • The different systems of the human body

  • The blood and respiratory system


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