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ZOOLOGY NOTES -PAGE 1

NUTRITION
​
1. What is Physiology? 
Ans: Study of functioning of organs and organ systems.

2. What are the aim of Physiological activities? 
Ans: maintenance of homeostasis, living and reproduction.

3. What differentiates a living thing from non-living? 
Ans: Homeostasis
​
4. What are the mechanisms of Homeostatics? 
Ans: stabilizing level of water, minerals and other components of the body fluids and other thermal regulations.

5. What are the processes of nutrition? 
Ans: ingestion, digestion, absorption and assimilation of food materials.

6. What are the components of nutrients? 
Ans: carbohydrates, proteins, lipids, vitamins, minerals and water.

7. What are carbohydrates? 
Ans: Poly hydroxyaldehydes (or) ketones

8. What is the composition of Carbohydrate? 
​Ans: carbon, hydrogen and oxygen 1:2:1 (CH2O)n

7. What are the types of Carbohydrates? 
Ans: monosaccharides, disaccharides and polysaccharides

8. Name the simplest form of carbohydrates 
Ans: Monosaccharides

9. What are the classifications of Monosaccharides? 
Ans: trioses, tetroses, pentoses, and hexoses

10. On what basis the classifications of Monosaccharides is done? 
​Ans: number of carbon atoms

11. What is the intermediary product in carbohydrate metabolic processes? 
Ans: trioses (C3H6O3)

12. What helps in the inter conversion of biomolecules? 
Ans: trioses (C3H6O3)

13. Give examples of Pentoses (C5H10O5)? 
Ans: ribose and deoxyribose

14. What are the main components of RNA and DNA? 
Ans: ribose and deoxyribose

15. Give examples of Hexoses(C6H12O6)? 
Ans: glucose, fructose and galactose

16. In which form the liberated energy is stored? 
Ans: ATPs (Adenosine triphosphate)

17. How much energy can one gram of carbohydrate can yield? 
Ans: 4.1 calories

18. How many monosaccharide monomers are there in Disaccharides? 
Ans: Two

19. Name two food substances that contain Disaccharides? 
Ans: milk and sugar

20. What are the three common disaccharides? 
Ans: maltose, sucrose and lactose

21. What is the composition of Maltose? 
Ans: glucose + glucose

22. What is the composition of Sucrose? 
Ans: glucose + fructose

23. What is the composition of Lactose? 
Ans: glucose + galactose

24. Give an example for a food containing Maltose. 
Ans: germinating cereals

25. Give an example for a food containing Sucrose. 
Ans: Cane Sugar

26. Give an example for a food containing Lactose. 
Ans: Milk

27. What are Polysaccharides?  
Ans: complex carbohydrates formed by polymerisation of a large number of monosaccharides.

28. Give two examples where polysaccharides are found. 
Ans: chitin, cellulose.

29. In which form Starch is found in food grains? 
​Ans: pectin and amylopectin molecules

30. Which polysaccharide is found in liver and muscles?
Ans: Glycogen

31. Define Protein. 
Ans: Proteins are nitrogenous compounds being made up of carbon, hydrogen, oxygen, nitrogen and sulphur.

32, What is the role of protein in living systems? 
Ans: structural organisation

33. What is the name of protein which serve as enzymes? 
Ans: functional proteins

34. Name the building blocks of protein. 
Ans: Aminoacids

35. How many aminoacids are there in total? 
Ans: 20

36. Which aminoacids cannot be synthesised by body? 
​Ans: Essential amino acids

37. What are the two types of aminoacids? 
Ans: Essential and Non-essential

38. What are the 20 aminoacids? 
Ans: alanine, arginine, asparagine, aspartic acid, cysteine, threonine, tryptophan, tyrosine,  valine, glutamicacid, glutamine, glycine, histidine, isoleucine, leucine, lysine, methionine, phenylalaine, proline, serine 

39. Give examples of essential aminoacids. 
​Ans: arginine, valine, histidine, isoleucine, leucine, lycine, methionine, phenylalanine, threonine and tryptophan

40. Which group of aminoacids can be synthesised by body? 
Ans: nonessential amino acids

41. Name the bond that links the aminoacids in protein. 
Ans: Peptide bonds

42. What is the daily requirement of protein, according to Indian Council for Medical Research and World Health Organisation? 
Ans: 1 gm per kg body weight.

43. Name two diseases associated with reduction in the intake of protein 
Ans: marasmus and kwashiorkor

44. Name the disease that causes oedema in face and feet of kids, due to less intake of protein. 
Ans: kwashiorkar

45. Name the insulating material found in our body. 
Ans: Lipid

46. Which is the most common type of lipids? 
​Ans: simple lipids (or) triglycerides

47. Name the food item that contains simple lipid. 
Ans: vegetable oils

48. A triglyceride is formed of _____________ and __________ 
Ans: glycerol and fatty acids.

49. What are the types of fatty acids? 
Ans: saturated and unsaturated fatty acids

50. Which fatty acid is good for persons having high blood pressure? 
​Ans: poly unsaturated fatty acids(PUFA)

51. Which fatty acid is capable of easier oxidative breakdown? 
Ans: Unsaturated

52. Name two oils which are abundant in unsaturated fatty acids? 
Ans: sunflower oil and safflower oil.

53. How many calories of energy are there in one gram of lipid? 
Ans: 9.3

54. What is the suggested amount of calorie that should come from fat? 
Ans: 25% to 30% of total calories

55. What are the different types of vitamins? 
Ans: A, B, C, D, E and K

56. Name the water-soluble vitamins. 
Ans: B and C

57. What is the proportion of water in the lean body mass of animals? 
Ans: 71 to 78 %
​
58. What is the total body water content in a new born child? 
Ans: 85 to 90 % of body weight

59. What is the total body water content in young adults? 
Ans: 55 - 60 % of body weight

60. What is the proportion of intra-cellular fluid (ICF) and extra-cellular fluid (ECF) out of the total body water? 
Ans: Intra-cellular fluid (ICF): 2/3 and extra-cellular fluid (ECF): 1/3

61. What is the percentage of the blood plasma in the extra-cellular fluid (ECF)? 
Ans: 25%

62. What are the ways in which water loss occurs in animals? 
Ans: Urine, Expiration, Through skin, Faeces
​
  • Zoology​
  • Zoology- Page 1
  • ​Zoology- Page 2
  • ​Zoology- Page 3
  • ​Zoology- Page 4
  • ​Zoology- Page 5
  • Zoology- Page 6
  • ​Zoology- Page 7
  • ​Zoology- Page 8
  • ​Zoology- Page 9
  • ​Zoology- Page 10
  • ​Zoology- Page 11
  • ​​Zoology Notes- Page 1- Nutrition
  • Zoology Notes- Page 2- Balanced Diet
  • Zoology Notes- Page 3- Human Digestive System
  • Zoology Notes- Page 4- Human Respiration
  • Zoology Notes- Page 5- Genetics

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