The Fundamental Unit of Life MCQ Questions and Answers for Practice

1. A cell loses water by osmosis when kept in a solution having a lower concentration of water than the cell. The given solution is

1. hyper-tonic
2. hypo-tonic
3. isotonic
4. dilute

2. A plant cell placed in a hypo-tonic solution will not burst because of presence of

1. plasma membrane
2. cell wall
3. chloroplast
4. cytoplasm

3. Amoeba acquires its food by the process of

1. exocytosis
2. endocytosis
3. osmosis
4. diffusion

4. An organism has poorly defined nuclear membrane in its cells. This organism could be a/an

1. bacteria
2. animal
3. fungi
4. bird

5. Besides nucleus, DNA is also present in

1. ribosomes and Golgi apparatus
2. mitochondria and chloroplasts
3. lysosomes and endoplasmic reticulum
4. Golgi complex and mitochondria

6. Cell theory was proposed by

1. Robert Brown
2. Robert Hook
3. Schleiden and Schwann
4. Anton von Leeuwenhoek

7. Cell wall is absent in

1. plant cells
2. bacterial cells
3. fungal cells
4. animal cells

8. Cell wall of plants is mainly composed of

1. chitin
2. cellulose
3. lipids
4. lignin

9. Chemical nature of carrier molecules facilitating transport across plasma membrane is:

1. starchy
2. sugary
3. proteinaceous
4. fatty acidic

10. Chromosomes are composed of

1. DNA and protein
2. DNA and sugar
3. sugar and protein
4. chromatin

11. ER remains associated with

1. dictyosomes
2. mitochondria
3. nuclear membrane
4. chloroplast

12. Find the best definition of vacuole ?

1. A fluid filled structure surrounded by membrane.
2. A thread like structure containing nuclear material.
3. A jelly like substance which is present between nucleus and cell membrance.
4. The basic structural units of an organism.

13. Find the correct statement:

1. Many fungi are single celled
2. Most cells are very large
3. Animals have many vacuoles
4. Chemical composition of Prokaryotes and eukaryotes vary

14. Identify the organelle that exists only in plant cell but NOT in an animal cell?

1. Centriole
2. Chloroplast
3. Golgi apparatus
4. Ribosome

15. If the ribosome of a cell are destroyed then

1. respiration will not take place
2. fats will not be stored
3. carbon assimilation will not occur
4. proteins will not be formed