Zoology Practice Test || Exam Questions 11-20 || Zoology MCQ

Biology & Biochemistry Quiz

11. The main purpose of Integrated Pest Management (IPM) is to:

A) Use as many pesticides as possible B) Reduce the pest population below economically damaging levels C) Eliminate pests entirely D) Use only organic methods

12. Which of the following is a common pest of stored food grains?

A) Weevil B) Spider mite C) Thrips D) Caterpillar

13. The pathways which is involved in the synthesis of glucose from non-carbohydrate precursors:

A) Glycolysis B) Krebs cycle C) Gluconeogenesis D) Glycogenesis

14. Beta-oxidation primarily refers to the:

A) Synthesis of fatty acids B) Conversion of glucose to glycogen C) Breakdown of fatty acids D) Conversion of glycerol to glucose

15. What principle does autoradiography rely on?

A) Light absorption B) Radioactive decay C) Electron scattering D) Fluorescence

16. What is the primary advantage of using a transmission electron microscope (TEM)?

A) It provides three-dimensional images. B) It allows observation of live specimens. C) It achieves high-resolution images at the atomic level. D) It uses visible light for imaging.

17. In chromatography, the term "retention time" refer to the time:

A) It takes for a solvent to pass through the column B) It takes for a compound to elute from the column C) Required for sample preparation D) Required for a sample to reach equilibrium

18. The primary use of an atomic absorption spectrophotometer is:

A) Measuring the concentration of gases B) Analyzing radioactive samples C) Determining metal concentrations in a solution D) Measuring light scattering

19. The type of microscopy which is best for studying the surface structure of specimens:

A) Light microscopy B) Transmission electron microscopy C) Scanning electron microscopy D) Phase contrast microscopy

20. The term "Zymogen" refers to:

A) An active enzyme B) An inactive enzyme precursor C) A coenzyme D) An enzyme inhibitor

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