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