Science General Knowledge Questions and Answers
A disease that can be caused by the deficiency of nicotinic acid for a long time is?
(A) Beri-Beri
(B) Pellagra
(C) Scurvy
(D) anemia
Correct Answer : B
The presence of funnel cells is a characteristic feature of ______
(A) Roundworms
(B) SpongeBob
(C) earthworms
(D) tongue worm
Correct Answer : B
Explanation :
Inside the plasma membrane is the cytoplasm, a fluid. It contains many specialized cell components called cell organelles. Each organelle performs a specific function for the cell.
Which of the following plants is not a collection organ of a stem?
(A) Sugarcane
(B) Ginger
(C) Potato
(D) Sweet potato
Correct Answer : D
Explanation :
Bryophytes. Bryophytes have no roots, leaves or stems. Moss and liverworts belong to this group. They are flowerless plants that grow in clumps.
Desert plants have long roots because?
(A) High soil temperature encourages roots to elongate
(B) Roots are long in search of water
(C) There is no water in the land. Therefore, it hardens and puts pressure on the roots, due to which it becomes elongated.
(D) Roots grow in the opposite direction to the heat of the sun
Correct Answer : B
Explanation :
A desert is a terrestrial habitat that is very dry and receives very little rainfall annually. Desert plants have deep long roots to absorb water deep below the surface of the ground.
In which branch do you study flowering plants?
(A) Cryptogames
(B) Phanerogames
(C) Bryophytes
(D) Pteridophytes
Correct Answer : B
Explanation :
Plant & flower science: Botany is the branch of biology that deals with plants. It involves the study of the structure and properties of plant life, including flowers and trees. Also included are plant classification and the study of the interactions of plants with their physical environment.
Which of the following contains a layer?
(A) mitochondria
(B) plastid
(C) Lysosome
(D) Rashadhani
Correct Answer : D
Do antibiotics affect?
(A) Bacteria
(B) Virus
(C) Viruses
(D) All of them
Correct Answer : A
The electron gun is the main part of?
(A) Cathode Ray Isoloscope
(B) Transistor tester
(C) Single Generator
(D) All of the above
Correct Answer : A
Explanation :
The most common use of electron guns is in cathode-ray tubes, which were widely used in computer and television monitors before the advent of flat screen displays. Most color cathode-ray tubes incorporate three electron guns, each one producing a different stream of electrons.
Which of the following is known as the suicide sac of the cell?
(A) Lysozyme
(B) golgibody
(C) ribosome
(D) None of these
Correct Answer : A
Explanation :
Lysosomes are called "suicide bags" of the cell because they have hydrolytic enzymes stored in them. These enzymes are used to digest complex molecules in a cell. When released into the cytoplasm, these enzymes can "digest" or destroy the cell itself.
Which of the following hitting methods has the highest power factor?
(A) heating resistance
(B) induction heating
(C) Arc heating
(D) Dielectric heating
Correct Answer : A
Explanation :
The correct answer is Resistance Heating. Resistance heating is based on the I2R effect and is highly resistive in nature that's why it has the maximum power factor. Electric resistance heating is defined as “the heat produced by passing an electric current through a material that preferably has high resistance”.
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Rajesh Bhatia
A Writer, Teacher and GK Expert. I am an M.A. & M.Ed. in English Literature and Political Science. I am highly keen and passionate about reading Indian History. Also, I like to mentor students about how to prepare for a competitive examination. Share your concerns with me by comment box. Also, you can ask anything at linkedin.com/in/rajesh-bhatia-7395a015b/.
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