1. Colour of the plants is green due to the presence of:
2. What is the outermost covering of plant cells called?
3. The chemical component that is invariably found in all viruses is:
4. Magnesium is a constituent metal of____
5. In a plant cell, ribosome is the site of :
6. The xylem in plants are responsible for :
7. Which of the following leucoplasts stores oils and fats?
9. A ............. is the tissue in most plants containing undifferentiated cells found in zones of the plant where growth can take place.
10. Which of the following is a characteristic of permanent tissue?
11. Which of the following statements about phloem transport is correct?
12. A group of genes whose activity is coordinated by a DNA site is called:
13. Plant cell wall is made up of
14. The orange colour of carrot is because of
15. The nucleus of a cell is surrounded by a jelly-like substance called:
16. Bones have a hard non–pliable ground substance rich in calcium salts and .......... fibres which give bone its strength.
17. Which of the following determines whether a group of organisms that is from the same genus and species arise from a common source or from different sources?
18. Name the tissue that transports food to various parts of a plant.
19. Which of the following is a complex substance that provides structural strength to plants?
20. The structure of the cells vary according to their function. Therefore, the tissues are different and are broadly classified into all of the following types, except ______.
21. Which of the following is NOT present in chlorophyll?
22. On the basis of structural modification of the cells, simple epithelium is divided into all of the following types, except ____.
23. Non-green plants lack which of the following?
24. Exchange of gases occurs through which part of the plant tissue?
25. In plants, phloem is responsible for the transportation of?
26. Which of the following amino acids cannot be synthesised in the human body?
27. ______ is the water transporting tissue in plants.
28. Which of the following is a natural flame retardant?
29. Skeletal muscles are attached to the skeleton by tough connective tissues called ................ .
30. Endoplasmic ______ (ER) is a large network of membrane-bound tubes and sheets:
31. _____ are composed of long, fibrous proteins as filaments that slide past each other when a muscle contracts or relaxes.
32. RNA is a polymeric molecule. What does RNA stand for?
33. In plants, water is transported through which of the following medium?
34. Which of the following is the middle layer in the root apical meristem that gives rise to the cortex?
35. Which of the following constitute to form a gene?
36. In plants, _____ is present in middle lamella, primary cell and secondary walls and accumulates during the initial stages of growth during cell expansion.
37. Which of the following is a type of Connective tissue?
I. Blood
II. Bone
III. Ligament
38. Skin is which of the following types of membrane?
39. Which type of epithelium is made of a single thin layer of flattened cells with irregular boundaries?
40. Which cell organelle has its own DNA and ribosome?
41. Carotene in fruits and vegetables gives it which colour?
42. The cell wall of a plant is composed of:
43. Match the columns Correctly:
| Column-A (Enzyme/Protein) | Column-B (Role in DNA Replication) |
|---|
| i. Helicase | a. Joins the 3' end of the new DNA segment to the 5' end of the previous one |
| ii. RNA Primase | b. Nucleotide polymerization |
| iii. DNA Polymerase | c. RNA Primer Synthesis |
| iv. DNA Ligase | d. Unwinds the DNA double helix |
44. Which tissue has heavily thickened lignified walls?
45. Which of the following is not connective tissue?
46. Which of the following is found only in plant cells?
47. Which cells give rise to various organs of the plant and keep the plant growing?
48. What is contained in Chlorophyll?
49. What is the basic unit of heredity?
50. Which part of a plant cell traps sunlight to make sugar ?
