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⁞ Biology

General Science ➤ Biology ➤ 1
Question 1
Q1.  Which of the following pairs is correctly matched ?
 

Answer :  Vitamin E : Reproduction


Vitamin E is a fat soluble vitamin that is essential in many physiological processes. It plays an important role in the health and maintenance of proper reproductive system function. Without vitamin E the body cannot reproduce. It is also essential during pregnancy and is needed for the proper health and development of the fetus.
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Question 2
Q2.  Major pesticidal properties are present in
 

Answer :  Jatropha and Pongamia


Jatropha curcas is known for its insecticidal, pesticidal and fungicidal properties. It is used in rural Bengal for dhobi itch ( a common fungal infection of the skin ).

Pesticidal properties have also been reported from Pongamia Pinnata (Karanja) especially against nematodes.
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Question 3
Q3.  The plant from which cocoa and chocolate are obtained is a
 

Answer :  small tree


Chocolate production starts with harvesting cocoa in a forest. Cocoa comes from tropical evergreen Cocoa trees, such as Theobroma Cocoa which are small trees. These trees live in the understory of tropical forests and require other, taller trees to shelter them from wind and sun.
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Question 4
Q4.  The biggest single-celled organism is
 

Answer :  Amoeba


Researchers, in October 2011, found "giant amoebas" (Xenophyophores) beneath the surface of the Pacific in the Mariana Trench. At more than four inches in length, they are the largest single-celled organism on earth.
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Question 5
Q5.  Crescograph was invented by
 

Answer :  J.C. Bose


A Crescograph is a device for measuring growth in plants. It was invented in the early 20th century by Sir Jagadish Chandra Bose - an indian polymath, physicist, biologist, botanist, and archaeologist.
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