The Fundamental Unit of Life MCQs Quiz Multiple Choice Questions & Answers

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

16. In chloroplasts, light is captured by

1. thylakoids within grana
2. grana within cisternae
3. cisternae within grana
4. grana within thylakoids

17. Largest number of cell bodies of neuron in our body are found in:

1. retina
2. spinal cord
3. brain
4. tongue

18. Plasma membrane is composed of

1. cellulose and lipids
2. lipids and proteins
3. peptidoglycan and lipids
4. cellulose and proteins

19. Root hairs absorb water from soil by the process of

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

20. Select the correct match:

1. Cell was first discovered - 1839
2. The term protoplasm was coined - 1665
3. The nucleus was discovered - 1831
4. Cell theory was proposed - 1674

21. Select the correct pair that comprises of only unicellular organisms

1. Amoeba and Rhizopus
2. Paramecium and Chlamydomonas
3. Bacteria an fungi
4. Plants and animals

22. Select the odd group from the following.

1. Chlamydomonas, Paramecium, bacteria
2. Fungi, Plants, Animals
3. Sperm, Neuron, Amoeba
4. Schleiden, Schwann, Virchow

23. The transportation of materials in the cell is done by

1. Golgi complex
2. lysosomes
3. mitochondria
4. endoplamic reticulum

24. Vacuole is surrounded by:

1. plasmalemma
2. cell wall
3. tonoplast
4. plasmodesmata

25. What are suicide bags?

1. Plastids
2. Mitochondria
3. Lysosomes
4. Ribosomes

26. What is autolysis ?

1. Self-replication
2. Self-digestion
3. Self-food producers
4. Food decomposer

27. What is meant by multicellular ?

1. The single celled organism.
2. The cytoplasmic projection which helps in locomotion & feeding of Amoeba
3. Organisms made of more than one cell.
4. A group of tissues which together perform specific function

28. What is the function of the central vacuole in plants?

1. Stores water and dissolved nutrients
2. Carries out photosynthesis
3. Releases energy from stored nutrients
4. Protects the genetic material of the cell

29. What is the important function of nucleus?

1. Photosynthesis
2. Cellular reproduction
3. Lipid synthesis
4. Protein synthesis

30. What is the meaning of Omnis Cellulae Cellula?

1. All organisms are composed of cells.
2. Cell is basic structural unit of an organism.
3. Cells are capable of producing more of themselves.
4. Cells arise from the division of pre-existing cell.

31. Which cell organelle is not bound by a unit membrane?

1. Lysosome
2. Ribosome
3. Endoplasmic reticulum
4. Nucleus

32. Which of the cell organelle take part in the formation of acrosome?

1. Nucleus
2. Chromosome
3. They are brittle
4. They are capable to form anions easily

33. Which of the following cell organelles can make complex sugars from simple sugars?

1. Ribosomes
2. Lysosomes
3. Endoplasmic reticulum
4. Golgi apparatus

34. Which of these is acellular?

1. Viruses
2. Bacteria
3. Protozoans
4. Fungi

35. Which structure in plant cell is responsible for providing the energy required to drive cellular processes?

1. Chloroplast
2. Mitochondrion
3. Nucleus
4. Golgi apparatus

36. Which structures can be found in all plant and animal cells?

1. Cell wall and nucleus
2. Mitochondria and centrioles
3. Cell membrane and centrioles
4. Mitochondria and cell membrane

37. Why is it crucial for root hair cells to have a long, narrow cytoplasmic extension?

1. To speed up the uptake of oxygen
2. To speed up the removal of carbon-di-oxide
3. To speed up the uptake of ions
4. To speed up the uptake of sugars and amino acids

38. X is a double membraned organelle that oxidises food present in cell to release energy. X is

1. n ucleus
2. endoplasmic reticulum
3. mitochondrion
4. chloroplast