The term chromosome was provided by
(A) Hoffmeister
(B) Waldair
(C) Sutton
(D) Wegener
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
' Lysosome ' was discovered by
(A) Robert Hooke
(B) Virchov
(C) Purkinje
(D) De Duve
The by - product of photosynthesis is
(A) carbon dioxide
(B) oxygen
(C) energy
(D) sugar
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
What is synthesized in the Krebs cycle ?
(A) lactic acid
(B) pyruvic acid
(C) glucose and ATP
(D) furic acid
Which cell is the largest cell of the human body ?
(A) nerve cell
(B) white blood cell
(C) red blood cell
(D) liver cell
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
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
What causes hoof and mouth disease in animals?
(A) Bacteria
(B) Protozoa
(C) Virus
(D) Insect
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