MIUN Free NEET Quiz Unit 3

1. In plants concentration of different types of ions are less in vacuoles then in the cytoplasm.

2. A typical eukaryotic cell consists of a cell membrane, nucleus and cytoplasm.

3. Proteins are not denatured at high temperatures.

4. The production of offspring by sexual reproduction includes the fusion of two gametes, each with a complete haploid set of chromosomes.

5. In contrast to mitosis, meiosis occurs in the diploid cells, which are destined to form gametes.

6. Cells at the end of prophase do not show the nucleolus.

7. Lysosomes are not lacking in lipases, as these enzymes also work under acidic conditions.

8. In amoeba contractile vacuole is present.

9. Proteins are homopolymers made of amino acids.

10. Nucleic acids may or may not carry hereditary information and may or may not be passed on from parental generation to progeny.

11. The relative abundance of other elements with respect to carbon and hydrogen is lower in any living organism than in earth’s crust.

12. Pair of synapsed chromosomes are more clearly visible in zygotene.

13. Phospholipids contain, in addition, a phosphorylated nitrogenous compound.

14. Adenine and Guanine are unsubstituted pyrimidines while the rest are unsubstituted purines.

15. Cell division that reduces the chromosome number by half results in the production of haploid daughter cells, known as reduction division.

16. Cells at the end of prophase do not show Golgi complexes.

17. Lysosomes are single membrane structures containing enzymes for digestion of all types of macromolecules.

18. The weight of a piece of liver or a fruit after complete dried is known as fresh weight.

19. Carbohydrates may or may not serve as storage forms of energy (e.g., Starch, Glucose and Glycogen).

20. The completion of prophase is indicated by the condensation of chromosomal material, forming compact mitotic chromosomes.

21. Cell theory created a sense of mystery around living phenomena.

22. We studied meiosis during gametogenesis in plants and animals.

23. Centrosome and centriole form the basal body of cilia and flagella that facilitate movement.

24. The vacuole is bound by a single membrane called tonoplast.

25. Contractile vacuole in amoeba is responsible for osmoregulation.

26. A nucleic acid containing deoxyribose is called ribonucleic acid (RNA)

27. The completion of prophase is indicated by the observation of chromosomes consisting of two chromatids attached together at the centromere.

28. Enzymes are proteins which catalyse biochemical reactions in the cells.

29. Zygotene is longer than pachytene.

30. Crossing over is the exchange of DNA between two homologous chromosomes.

31. Adenine and Guanine are unsubstituted pyrimidines.

32. All the organelles present in the prokaryote is membrane bound.

33. There is a wide diversity in living organisms in our biosphere.

34. G2 phase corresponds to the interval between mitosis and termination of M phase.

35. Succinate is a non-competitive inhibitor.

36. Cellulose is not a polymeric substance and a secondary metabolite.

37. The weight of a piece of liver or a leaf immediately after collected from organisms is known as dry weight and while burnt it releases water vapour.

38. The vacuole may contain excretory products.

39. In plants, concentration of different types of ions are less in cytoplasm than in the vacuoles.

40. Recombination is the exchange of genetic material between two homologous chromosomes.

41. Concanavalin A is not a lectin and a secondary metabolite.

42. Physico-chemical approach of studying cells will tell us what types of organic compounds (but not inorganic compounds) are present in living organisms.

43. Pachytene is characterised by the appearance of recombination nodules.

44. Malonate is a substrate of succinic dehydrogenase.

45. The detailed description of living form and appearance brought out biodiversity.

46. Lysosomes are membrane bound vesicular structures formed by the process of packaging in the rough endoplasmic reticulum (RER).

47. Reductionist is a person who analyses and describes a complex phenomenon in terms of its simple or fundamental constituents.

48. G1 phase (Gap 1) is a subphase under karyokinesis.

49. A nucleic acid containing ribose is called deoxyribonucleic acid (DNA)

50. The stages through which a cell passes from one division to the next is called the cell cycle.