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Name the largest artery in the human body?

Answer: Aorta An Aorta is an elastic and distensible artery. The artery that supplies oxygenated blood to the rest of the body. It carries... View Article

Bicollateral vascular bundles are found in family (1) Malvaceae (2) Musaceae (3) Solanaceae (4) Cucurbitaceae

Answer: (4) Bicollateral vascular bundles are visible in the members of Cucurbitaceae.It is a kind of conjoint vascular bundle in the stem that... View Article

The equivalent weight of K2Cr2O7 in acidic medium is expressed in terms of its molecular weight (M) as (1) M/3 (2) M/4 (3) M/6 (4) M/7

Answer: (3) An equivalent weight of a solution is defined as the molecular weight of the solute divided by the valence of the solute. Equivalent... View Article

A doctor/nurse/health-worker is exposed to more sick people than others in the community. Find out how she/he avoids getting sick herself/himself.

Answer: People who are working in the field of medical like nurse/doctors are exposed to more ill people in society. Medical professionals... View Article

Who is regarded as the ‘father of taxonomy’?

Answer: Carolus Linnaeus Taxonomy is the study of naming, comparing and sorting organisms that involve all the plants, animals and... View Article

Classical smog is (1) Dark brown smog (2) Yellow brown smog (3) Los angeles smog (4) Smog with secondary pollutants

Answer: (1) Smog is the most common type of atmospheric pollutant which affects a major portion of the world. The combination of two words... View Article

How does the atmospheric pressure change with altitude? (1) Altitude increases, pressure decreases (2) Altitude decreases, pressure increases (3) Altitude increases, pressure increases (4) Altitude is independent of pressure

The correct answer is (1) Altitude increases The atmospheric pressure varies with altitude as the density of air decreases as we rise up and the... View Article

The general formula of alkynes is : (1) Cn H2n+2 (2) Cn H2n (3) Cn H2n-2 (4) Cn Hn

Answer: (3) Alkynes are unsaturated hydrocarbons which consist of at least one triple bond between carbon atoms.l. The general molecular formula... View Article

Name an enzyme present in the saliva of human beings?

Answer: The enzyme found in human's saliva is ptyaline. Ptyaline is also known as salivary amylase. Secreted ptyaline in the mouth causes... View Article

Which cells of Crypts of Lieberkuhn secrete antibacterial Lysozyme’ Which cells of Crypts of Lieberkuhn secrete antibacterial Lysozyme? (1) Argentaffin cells (2) Paneth cells (3) Zymogen cells (4) Kupffer cells

Answer: (2) Kupffer cells are liver cells of phagocytic origin. Zymogen cells are the cells which produce enzymes. Argentaffin cells are cells... View Article

Which of the following salt gives a crimson red colour in flame test? (1) BaCl2 (2) CaCl2 (3) BeCl2 (4) SrCl2

Answer: (4) In the flame test, strontium chloride (SrCl2) will give crimson red colour. The reason behind this excitation of an electron from... View Article

List the hormones secreted by pancreas.

Answer: The pancreas is an abdominal organ located behind the stomach and surrounded by spleen, liver and small intestine. It is a vital part of... View Article

What would be the Ψ pof a flaccidcell? (1) Positive (2) Negative (3) Zero (4) Cannot be determined

Answer: (3) Pressure potential is the positive pressure developed by the osmotic entry of water into a system. The magnitude of the potential... View Article

Living cells were first observed by (1) Robert Hooke (2) Schleiden (3) Schwann (4) Leeuwenhoek

Answer: (4) Robert Hooke, a scientist, was the first person in 1665 to discover the presence of cells, using a microscope. Anton van... View Article

What do you mean by Gestation period?

Answer: The development of the fetus from the time of fertilization in the womb of its mother is called the gestation period. In humans, the... View Article

The probability of a sure event is

Answer: The value of the probability of an impossible event = 0 The value of the probability of a sure event = 1 An event is a sure event that... View Article

The diagram shows liquid in a burette and in a measuring cylinder.Which row shows the readings for the burette and the measuring cylinder? (1) Burette – 27.8 , measuring cylinder – 42 (2) Burette – 27.8 , measuring cylinder – 44 (3) Burette – 28.2 , measuring cylinder – 42 (4) Burette – 28.2 , measuring cylinder – 44

Answer: (2) A measuring cylinder is also known as graduated cylinder or mixing cylinder is commonly used in the laboratory to measure the... View Article

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