Biology General Knowledge Questions
The term chromosome was provided by
(A) Hoffmeister
(B) Waldair
(C) Sutton
(D) Wegener
Correct Answer : B
Mitochondria is not found in which of the following cells present in the human body ?
(A) red blood cell
(B) liver cells
(C) muscle cell
(D) white blood cell
Correct Answer : A
Explanation :
As the only cell which does not contain or have the mitochondria is the red blood cell. Red blood cell does not contain organelles like nucleus and mitochondria.
' Lysosome ' was discovered by
(A) Robert Hooke
(B) Virchov
(C) Purkinje
(D) De Duve
Correct Answer : D
The by - product of photosynthesis is
(A) carbon dioxide
(B) oxygen
(C) energy
(D) sugar
Correct Answer : B
Explanation :
Photosynthesis is the process in which green plants use sunlight, along with water and carbon dioxide to make their own food. Oxygen and glucose are the by-products of photosynthesis.
Which metal is responsible for the disease called Itai - Itai ?
(A) cadmium
(B) nickel
(C) Chromium
(D) mercury
Correct Answer : A
Explanation :
Itai-itai disease is caused by cadmium (Cd) exposure, produced as a result of human activities related to industrialisation, and this condition was first recognised in Japan in the 1960s.
What is synthesized in the Krebs cycle ?
(A) lactic acid
(B) pyruvic acid
(C) glucose and ATP
(D) furic acid
Correct Answer : B
Which cell is the largest cell of the human body ?
(A) nerve cell
(B) white blood cell
(C) red blood cell
(D) liver cell
Correct Answer : A
The color of a cut apple turns brown after some time because it reacts with air to form-
(A) Iron Oxide
(B) Potassium oxide
(C) Aluminum oxide
(D) Sodium oxide
Correct Answer : A
Explanation :
Apple contains an enzyme known as polyphenol oxidase (PPO). This enzyme when comes in contact with oxygen molecules oxidized polyphenols into o-quinones. These o-quinones thus form reacts with the neighboring amino acids to produce melanins.
How many times does the heart of an adult person beat in 1 minute?
(A) 50 times
(B) 60 to 100 beats per minute
(C) 90 times
(D) 120 times
Correct Answer : B
Explanation :
A normal resting heart rate should be between 60 to 100 beats per minute, but it can vary from minute to minute. Your age and general health can also affect your pulse rate, so it's important to remember that a 'normal' pulse can vary from person to person.
What causes hoof and mouth disease in animals?
(A) Bacteria
(B) Protozoa
(C) Virus
(D) Insect
Correct Answer : C
Showing page 4 of 5
enhttps://www.examsbook.com/biology-general-knowledge-questions/454biology-general-knowledge-questionsAbout author
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/.
Read more articles