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Khub.info Learn TNPSC exam and online pratice
Q1. Cell sap is
Q2. The edible part is a fruit in which one of the following crops?
Q3. The Virus that infects a bacterium is
Q4. Binomial nomenclature refers to
Q5. To which group of plants does the banyan tree belong?
Q6. A liverwort is
Q7. "Flame of the forest" refers to
Q8. A herbarium is
Q9. Taxonomy is a science dealing with the
Q10. The widely used antibiotic, penicillin, is produced by
Q11. Lichen is considered to be a symbiotic association of two living organisms. Which organisms are involved in it?
Q12. Agar, commonly used as a synthetic growth me­dium and in bakery, is obtained from
Q13. Which of the following human disease/s is/are caused by a mutant gene?
Q14. Which of the following shows a taxonomically closely-related group?
Q15. Which scientist was responsible for binomial nomenclature?
Q16. Which of the following is not a parasite?
Q17. Which of the following moves the fastest?
Q18. The bird without cloaca is the
Q19. Yellow proteins are
Q20. Which of the following substances is not a protein?
Q21. Which one of the following plant organs is an organ of respiration?
Q22. Lucerne is a
Q23. The numerous minute pores in the epidermis of a leaf are called
Q24. In some plants, water oozes through certain pores that remain permanently open. This phenomenon is called
Q25. Which one of the following is not a stem modification?
Q26. From which part of the plant is turmeric, a com­monly-used colourant and antiseptic, obtained?
Q27. Clove, the commonly used spice, is obtained from the
Q28. Hashish is obtained from a plant From which part of the plant is it obtained?
Q29. The living and growing part of human hair is
Q30. Grey matter consists of
Q31. Blood is formed in the human adult by the
Q32. Haploid chromosome number is not seen in
Q33. One of the organs that excretes water, fat and various catabolic wastes is the
Q34. The body is protected against drying, absorbing and bacterial invasion by the
Q35. During elections, a permanent chemical mark is put at the base of the nail of index finger while exercising your franchise. This mark is not seen after two months or so because
Q36. Which of the following sugars are components of cane sugar?
Q37. During the course of prolonged starvation and fasting, glucose, or glycogen is synthesized from non-carbohydrate precursors by the process of
Q38. Which of the following compounds found in all living organisms are rich in phosphorus?
Q39. The country that leads in life expectancy for both males and females is
Q40. The total fertility rate refers to
Q41. The large part of most diet is made up of
Q42. The phosphagen that provides an immediate source of energy for vertebrate muscular contraction is
Q43. Enzymes involved in chemical reactions
Q44. In milk, fat content is reduced during
Q45. The colour of cow's milk is slightly yellowish due to the presence of
Q46. In calves that consume large quantities of milk, the curdling of milk takes place due to
Q47. Which of the following is most important for the growth of children up to the age of l4?
Q48. Roughage, a necessary constituent of diet, consists largely of indigestible
Q49. As sugar is constantly being removed from the blood by body cells to replace what is used up in respiration, more sugar is supplied by the
Q50. In termites, the cellulose of wood is digested by