Tag: GATE Life Science Previous Year Papers with Solutions

Q.78 Granules are inclusion bodies found in bacteria. Which of the following statements are trueabout granules?(i) Granules can be storage vessels for carbohydrates/lipids(ii) Some granules supply substances for a variety of […]

Q.77 Which of the following cellular structures are absent in eukaryotes and are present at leastin some prokaryotic organisms?(i) Respiratory enzymes(ii) Ribosomes(iii) Nucleoid(iv) Internal membranes(v) Pili(A) (iii) and (v)    […]

Q.76 Folic acid synthesis in bacteria is competitively inhibited by sulfonamides. Which of thefollowing essential components is replaced by sulfonamides during the process of folicacid synthesis?(A) Pteridine          […]

Q.75 A bacterial culture contains 500 organisms / mL in the exponential growth phase at 8 am inthe morning. If you consider a generation time of 20 minutes, the total […]

Q.74 What is the enzyme involved in the following reaction?Triglyceride + 3H2O ———–> Glycerol + fatty acids(A) Glycerol phosphate dehydrogenase (B) Glycerol kinase(C) Lipase (D) Zymase Lipase is the enzyme […]

Q.73 Which of the following is a symbiotic bacterial genus that converts nitrogen into nitrogencontaining compounds that are utilized by legume plants to synthesize amino acids?(A) Spirillum (B) Azotobacter(C) Rhizobium […]

Q.72 Dick test is used to assess the susceptibility to______________ .(A) diphtheria (B) scarlet fever (C) typhoid fever (D) tuberculosis The Dick test assesses susceptibility to scarlet fever. This skin test, […]

Q.71 Secondary metabolites such as penicillin from mold are produced during the _______ .(A) lag phase (B) idiophase (C) log phase (D) decline phase The correct answer is (B) idiophase.​ […]

Q.70 The highly contagious viral disease measles is caused by a(A) double–stranded DNA virus(B) single–stranded DNA virus(C) single–stranded RNA virus(D) double–stranded RNA virus Measles is caused by a single-stranded RNA […]

Q.69 Microbes make up about ___________ of earth’s living material by weight.(A) 1/4th (B) 2/3rd (C) 3/4th (D) 4/5th The correct answer is (B) 2/3rd. Scientific data shows microbes constitute […]