MD MUSTAFIZUR RAHAMAN Polity Economy . Gk Current Affairs - Prfl link https:/unacademy.com/user/LeoMESSIIO
Affairs for WBCS MANs 2018 INDIAN POLITY
WBCS PRELIMINARY EXAM 2019
Q1 In Human beings the process of digestion of food begins in: A. Stomach B. Food Pipe C. Mouth D. Small Intestine
Ans c . Digestion of food starts as soon as we put food in our mouth. The mouth cavity contains teeth, tongue and salivary glands. The teeth cut the food into small pieces, chew and grind it. The teeth help in physical digestion. The salivary glands help in chemical digestion by secreting enzymes.
02 . Which of the following organism have parasitic mode of nutrition? A. Penicillium B. Plasmodium C. Paramecium D. Parrot
Ans B In parasitic nutrition organism derives its food from the body of another living organism called host without killing it. Parasitic mode of nutrition is observed in several fungi, bacteria, few plants like Cucuta and some animals like Plasmodium and round worms. Plasmodium causes malarial disease.
Q3 . Name the first enzyme that mix with food in the digestive tract? A. Pepsin B. Trypsin C. Amylase D. None of the above
Ans c . The salivary glands present in mouth secrete salivary amylase enzyme which digests the starch present in food into sugar. Digestion of starch or carbohydrate starts in mouth itself. Therefore, amylase is the first enzyme that helps in the process of digestion.
Q4 . Which of the following in biology is the energy currency of cells? A. PDP B. DTP C. ATP D. ADP
Ans C . The process of releasing energy from food is called respiration. The energy is stored in the form of ATP (Adenosine tri phosphate) in the body cells which is used for various purposes like contraction of muscles, conduction of nerve impulses, synthesis of proteins and many other activities related to the functioning of cells. Therefore, ATP is known as the energy currency of cells.
Q5 . In the stem of a plant respiration and breathing takes place through: A. Lenticels B. Stomata C. Root hair D. Air tubes
Q6 Who was the author of Kitab-ul-Hind? A. Abu Said B. Abul Fazl . C. Firdausi * D. Al-Beruni
09 The most learned medieval Muslim ruler who was well versed in various branches of learning including astronomy, mathematics and medicine was A. Sikandar Lodi B. litutmish C. Muhammad bin Tughlaq D. Alauddin Khalji
Q10 .Which of the following towns/ city is not situated on the bank of river? . A. Agra .B. Bhopal * C. Patna . D. Mumbai
Q11 Which of the following states have the common borders with China? I. Jammu and Kashmir . II. Sikkim II. Arunachal Pradesh . IV. Himachal Pradesh . Select the correct code: A.,I and IV B, and IlI C. I and IlI D. I, II, Ill and IV
Q14 . Which one of the following states receives maximum number of immigrants? A. Uttar Pradesh B. Delhi C. Maharashtra D. Bihar
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Md Mustafizur Rahaman
Chemistry . Blogger (Pscguide.in) . Selected For WBCS 2017 Interview. Currently working as journalist in an esteemed daily.Taught math vari