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Q1.Yellow fever is a disease spread through which of the following?
Q2.Mangroves are plants that have –
(a) Modified Roots
(b) Modified Stems
(c) Respiratory Roots
(d) Respiratory Stems
Q3.Rodentia Sciurus is the scientific name of –
Q4.Which of the following is a symptom of haemophilia?
(a) Night Blindness
(b) No clotting of Blood
(d) Loss of haemoglobin
Q5.Pellagra and Scurvy are caused by which pair of vitamin deficiency respectively ____________.
(a) Vitamin C and Vitamin D
(b) Vitamin B-3 and Vitamin C
(c) Vitamin C and Vitamin A
(d) Vitamin A and Vitamin B-12
Q6. The suicidal bags of the cell are –
Q7. Clove is obtained from-
(d) Flower buds
Q8. The largest artery in human body is –
(d) Pulmonary vein
Q9. Which cells in pancreas produce Insulin?
(c) Corpus epididymis
(d) Islets of Langerhans
Q10. Who is known as the ‘Father of Green Revolution’?
(a) G. Paul
(b) Norman Borlaug
(c) Van Neil
(d) Dr. Mithchell
Sol. The disease is caused by the yellow fever virus and is spread by the bite of an infected female mosquito. It infects only humans, other primates, and several species of mosquitoes.
Sol. A mangrove is a shrub or small tree that grows in coastal saline or brackish water. They have respiratory roots.
Sol. Rodentia Sciurus is scientific name of Squirrel.
Sol. Haemophilia,is a mostly inherited genetic disorder that impairs the body’s ability to make blood clots, a process needed to stop bleeding.
Sol. Scurvy is caused by a prolonged deficiency of vitamin C (ascorbic acid) in the diet. Pellagra occurs as a result of niacin (vitamin B-3) deficiency.
Sol. Lysosomes are membrane-enclosed organelles that contain an array of enzymes capable of breaking down all types of biological polymers. One of its functions is to digest materials taken up from outside the cell. That process is called endocytosis. Hence they are called the Suicidal bag of the cell.
Sol. Cloves are the aromatic flower buds of a tree.
Sol. The aorta is the largest blood vessel and artery in the human body.
Sol. The hormone insulin is a main regulator of the glucose (sugar) levels in the blood. Insulin is produced in the pancreas. To be more specific, it’s produced by the beta cells in the islets of Langerhans in the pancreas.
Sol. Norman Ernest Borlaug was an American agronomist and humanitarian who led initiatives worldwide that contributed to the extensive increases in agricultural production termed the Green Revolution. He is known as Father of Green Revolution.
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