MIUN Free NEET Quiz Unit 4

1. The splitting of Fructose 1,6 bisphosphate into glyceraldehyde-3-phosphate and Dihydroxy acetone phosphate in glycolysis occurs without ATP utilisation being coupled.

2. Cytokinins helps to produce new leaves, chloroplasts in leaves, lateral shoot growth and adventitious shoot formation.

3. Tracheary elements are specialized cells found in the xylem tissue of Phaeophyceae.

4. Malic acid is a 3C compound.

5. Flowering of a plant is influenced by only intrinsic factors.

6. Experiments conducted over a wide range of plants led to the discovery of another group of plants, where the first stable product of CO₂ fixation was 4 carbon organic acid.

7. Tracheary elements are specialized cells found in the xylem tissue of Rhodophyceae.

8. Fumarate → malonate, does not couple with the O₂ release.

9. The breakdown of the protons gradient due to movement through the F1 part of the ATPase enzyme releases enough energy for synthesis of ATP.

10. Phosphorylation at the inner membrane of mitochondria is called oxidative phosphorylation.

11. All living differentiated plant cells, that by now have lost the capacity to divide can regain the capacity of division under all conditions.

12. Carbohydrates are organic biomolecule.

13. Carbohydrates are oxidised during respiration.

14. During differentiation, to form a tracheary element, the cells would form strong and inelastic lignocellulosic primary cell walls.

15. Cytokinins, exhibiting non-specific influence on cytokinesis, were originally identified as cytokine, a purine derivative of adenine, obtained from the fresh herring-sperm DNA.

16. The non-living differentiated plant cells, that by now have lost the capacity to divide cannot regain the capacity of division under certain conditions.

17. The compounds that are oxidised during photosynthesis are known as respiratory substrates.

18. Proteins are respiratory substrates.

19. Development in plants (i.e., both growth and differentiation) is under the control of intrinsic and extrinsic factors.

20. Tripalmitin is the most favoured substrate for respiration.

21. The primary CO₂ fixation product in C₃ plants is PGA.

22. Root and shoot apical meristems sometimes along with intercalary meristem, contribute to the elongation growth of plant axes.

23. On splitting Fructose 1,6 bisphosphate into glyceraldehyde-3-phosphate and Dihydroxy acetone phosphate in glycolysis, ATP utilisation becomes coupled to the step.

24. The respiratory quotient depends upon the type of respiratory substance used during respiration.

25. α-ketoglutaric acid → succinyl-CoA, does not couple with the O₂ release.

26. As electrons move through the photosystems, protons are transported across the chloroplast membrane.

27. An undifferentiated cell may dedifferentiate and then redifferentiate.

28. Almost all living cells in a plant have their surfaces exposed to air.

29. Auxin is an example of extrinsic factor that affects the development of a plant.

30. Dedifferentiation allows cells to regain the ability to divide and differentiate into same cell types.

31. Differentiation = growth + development.

32. A differentiated cell may not dedifferentiate and then redifferentiate.

33. In glycolysis, Glucose is converted to glucose 6 phosphate which is do not coupled with NADH utilisation.

34. Cornelius van Niel worked on photosynthesis.

35. Growth is one of the most conspicuous events in any living organism.

36. Gibberellins produce a wide range of physiological responses in the plants.

37. Using a prism, Julius von Sachs split light into its spectral components and then illuminated a green alga, Cladophora, placed in a suspension of aerobic bacteria.

38. Along with electrons that come from the acceptor of electrons of PS II, protons are necessary for the reduction of NADP+ to NADPH+ H+.

39. During glycolysis, 2 phosphoglyceric acid arises from 3 phosphoglyceric acid without ATP utilisation being involved.

40. The living dedifferentiated plant cells, that by now have lost the capacity to divide cannot regain the capacity of division under certain conditions.

41. Acetyl CoA then enters the tricarboxylic acid pathway or Krebs’ cycle operating in the matrix of the mitochondria.

42. Scientists did not try to know whether all plants have PGA as the first product of CO₂ fixation, or whether any other product was formed in other plants.

43. The cell in the treachery elements are dead.

44. The mitochondria are the site where the breakdown of complex molecules to yield energy occurs.

45. Under intense illumination, C₃ plants exhibit a low CO₂ fixation rate.

46. The breakdown of complex molecules to yield energy takes place in the cytoplasm.

47. PS I have a 700 nm absorbing chlorophyll a P700 molecule at its reaction centre, while PS II has a P680 reaction centre that absorbs red light at 680 nm.

48. Formation of meristems – interfascicular cambium and cork cambium from fully differentiated parenchyma cells is dedifferentiation.

49. In plants, only meristems are the sites of growth.

50. In glycolysis, Fructose 6 phosphate is converted to fructose 1, 6 bisphosphate which is coupled with ATP utilisation.