Cells and Tissues – Online MCQs Test – Biology 9th

1. In 1833, the center of the cell was seen by:

2. Plant and animal cells are:

3. The ER is located in the cytoplasm and is connected to the:

4. In hypertonic conditions, a plant cell:

5. In nucleus an aggregation of RNA is also present called:

6. On stem and leaves these tissue secrete cutin which prevents evaporation.

7. Plastids often contain pigments used in:

8. The cell membrane is composed of a double layer of special lipids called:

9. It lies on the .inside of the middle lamella and is mainly composed of cellulose.

10. In 1839, he presented a cell theory.

11. It allows rapid exchange of specific substances.

12. It contains enzymes for photosynthesis.

13. They are found in cortex of young stems, in the midribs of leaves and in the petals of flowers:

14. Their cell walls are hardened with lignin, which is the main chemical component of wood.

15. Secondary wall is made up of

16. Bacterial cell walls are composed of:

17. They are fluid-filled spaces that occur in the cytoplasm of plant cells.

18. The fundamental unit of living thing is:

19. Energy flow occurs in cells through the breakdown of:

20. In plants, the cell wall is composed mainly of: