Biology MCQs

1. Hepatitis A which is the most common cause of jaundice in young people is an infection of liver by ________?
[A] Bacteria
[B] Virus
[C] Amoeba
[D] Prortozoan

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2. A chloroplast without cell wall is ________ ?
[A] aleuroplast
[B] amyloplast
[C] protoplast
[D] photoplast

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3. Which among the following is not a monosaccharide?
[A] Glucose
[B] Sucrose
[C] Fructose
[D] Galactose

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4. Which among the following is not a beverage plant?
[A] Camellia sinensis
[B] Theobroma cacao
[C] Coffea Arabica
[D] Alonsoa grandiflora

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5. Gargling with a solution of table salt is known to provide relief for a sore throat because ____ ?
[A] It kills bacteria
[B] It works as analgesic
[C] It dehydrates water from inflammatory tissues by Osmosis
[D] Placebo effect

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6. Meg-1 is an imprinted gene which finds expression only from maternal chromosomes which regulates the transfer of nutrients from the plant to the seed. This gene has been discovered in :
[A] Maize
[B] cotton
[C] jute
[D] Sugarcane

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7. Which among the following will be the consequence of destruction of all beta cells in the pancreas?
[A] Glucagon secretion will stop and blood glucose levels will increase
[B] Glucagon secretion will stop and blood glucose levels will decrease
[C] Glucagon secretion will stop and digestive enzymes will be secreted
[D] Insulin secretion will stop and blood glucose levels will increase

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8. Which plants grow under water stress conditions of deserts?
[A] Epiphytes
[B] Xerophytes
[C] Sciophytes
[D] Heliophytes

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9. Which of the following bacteria is responsible for the formation of curd?
[A] Yeast
[B] Lycopodium
[C] Lacto-bacillus
[D] Fungus

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10. Which of the following clearly define Lichens? (UPSC Prelims 1984)
[A] Algae and fungi
[B] Algae and virus
[C] Fungi and virus
[D] Virus and bacteria

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