2. Plants are green because of the presence of a pigment called
3. Alfa-keratin is protein present in-
4. Which of the following elements are present in all proteins? 1. Carbon 2. Hydrogen 3. Oxygen 4. Nitrogen Select the correct answer by using the codes gives below : Code:
5. Which of the following studies come under Paleobotany?
6. Which part of the animal cell is called power house?
7. Which of the following statements is not correct?
8. The protein that the hair is made of is called-
9. The scientific study of insects is known as:
10. Almost 80% living substance of human body is
11. The major component of honey is:
12. All known enzyme are in nature of:
13. Which of the following statement/s is /are correct ? a. Enzymes are organic catalyst that accelerate biochemical reaction. b. Enzymes are made up from proteins. c. Enzyme activity is not depends upon temperature. d. Amylase an enzyme that act on starch.
14. Which of the following is not present in animal cell?
16. The viticulture is known as–
17. Which is the basic building block/unit of all living things?
18. Which is NOT the characteristic of an enzyme?
19. The sweetest sugar among the following is
20. Pungency in chillies is due to the presence of:
21. Nitrogen is NOT an essential constituent of
23. The branch of science in which human species is improved by genetic engineering, is known as–
24. Cow milk is yellowish in colour due to-
28. Which of the following proteins is found in milk?
31. Which of the following is responsible for the red colour of tomato?
32. Study of Zoology deals with–
33. The elastic tissue that connects the bones together, is called-
34. The pigment that protects plants from damage by UV radiation is
35. A branch of science that encompasses the description, identification, nomenclature, and classification of organisms is called -
36. The main component of protein-
37. The ultimate substance to which the carbohydrates are degraded, is
38. Intraxylary phloem is found in-
39. Which of the following statements about enzymes is/are correct? 1. They are biocatalysts. 2. They perform their action on the site where they are produced. Select the correct answer from the codes given below :- Codes:
40. Sweetest sugar among the following is :
41. Arrange the following categories on the order of mitotic cell division. A. Prophase B. Metaphase C. Anaphase D. Telophase The correct order is
42. Which of the living tissues acts as the carrier of organic nutrients in higher plants ?
43. Amino acids are the building blocks of
44. Prokaryotic cells does not contain –
45. The Xylem in plants is responsible for transporting–
46. The following cell organelle is known as 'Suicidal bags':
47. Which of the following statements is not correct?
48. The branch of study dealing with old age and ageing is called
49. Substances which are responsible for catalyzing chemical reactions in living system are–
50. The powerhouse of cell is
51. _______ are precursors of enzymes. a. Zymogens b. Ribosomes c. RNA d. Protein Which of the option given above is/are correct ?
52. When the bark of a tree is removed in circular fashion all around near its base, it gradually dries up and dies because?
53. Water is conducted in vascular plants by–