Biology General Knowledge Questions
Which of the following is the largest cell organelle ?
(A) nucleus
(B) mitochondria
(C) plastid
(D) Golgi body
Correct Answer : A
Which of the following cell organelle contain DNA ? It happens ?
(A) Golgi apparatus ( Golgi apparatus )
(B) mitochondria
(C) Lysosomes
(D) Endoplasmic reticulum
Correct Answer : B
Who discovered ' Lavak ' ?
(A) Hackl
(B) Dujardin
(C) Purkinje
(D) Leuvenhoek
Correct Answer : A
Which of the following is a root ?
(A) Potato
(B) Onion
(C) Carrot
(D) ginger
Correct Answer : C
Explanation :
Yams, beets, parsnips, turnips, rutabagas, carrots, yuca, kohlrabi, onions, garlic, celery root (or celeriac), horseradish, daikon, turmeric, jicama, Jerusalem artichokes, radishes, and ginger are all considered roots. Because root vegetables grow underground, they absorb a great amount of nutrients from the soil.
The amount of light entering the eye can be controlled and regulated by
(A) pupil
(B) Iris
(C) retina
(D) cornea
Correct Answer : A
Explanation :
Iris regulates the amount of light entering the eye by adjusting its size. Iris is a thin membrane, which controls pupil which in turn regulates the amount of light entering the eye.
Myxodema occurs in the human body due to the malfunction of which of the following?
(A) adrenal gland
(B) pancreatic gland
(C) liver
(D) thyroid gland
Correct Answer : D
Explanation :
Myxedema is the result of having undiagnosed or untreated severe hypothyroidism. The term “myxedema” can mean severely advanced hypothyroidism. But it's also used to describe skin changes in someone with severely advanced hypothyroidism.
Which disease is caused due to deficiency of insulin ?
(A) diabetes
(B) asthma
(C) T.B.
(D) none of these
Correct Answer : A
Where is the control center of reflex actions?
(A) in the cerebrum
(B) in the cerebel
(C) vertebral cord
(D) nerve cell
Correct Answer : C
The amount of water in the blood plasma is approx.
(A) 70%
(B) 90%
(C) 10%
(D) 45%
Correct Answer : B
In which part of the human body is the pituitary gland located?
(A) Brain
(B) Heart
(C) liver
(D) Lungs
Correct Answer : A
Explanation :
Your pituitary gland is located at the base of your brain, behind the bridge of your nose and directly below your hypothalamus.
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Rajesh Bhatia
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