MCQ Questions for Class 9 Science Chapter 5 The Fundamental Unit of Life

Solving the The Fundamental Unit of Life Multiple Choice Questions of Class 9 Science Chapter 5 MCQ can be of extreme help as you will be aware of all the concepts. These MCQ Questions on The Fundamental Unit of Life Class 9 with answers pave for a quick revision of the Chapter thereby helping you to enhance subject knowledge. Have a glance at the MCQ of Chapter 5 Science Class 9 and cross-check your answers during preparation.

Multiple Choice Questions

Question 1.
The basic unit of life is:
(a) tissue
(b) cell
(c) both
(d) none of them

Answer

Answer: (b) cell


Question 2.
Who discovered the cell?
(a) Robert Hooke
(b) Leeuwenhoek
(c) Robert Brown
(d) T. Schwann

Answer

Answer: (a) Robert Hooke


Question 3.
The cell wall of a plant cell is made up of:
(a) glucose
(b) fructose
(c) protein
(d) cellulose

Answer

Answer: (d) cellulose


Question 4.
Which of the following controls all biological activities of a cell?
(a) Protoplasm
(b) Cell wall
(c) Nucleus
(d) All of these

Answer

Answer: (c) Nucleus


Question 5.
Which of the following is known as the ‘Power House’ of a cell?
(a) Nucleus
(b) Golgi Bodies
(c) Ribosome
(d) Mitochondria

Answer

Answer: (d) Mitochondria


Question 6.
Digestive Enzymes are found in:
(a) Protoplasm
(b) Cell wall
(c) Lysosomes
(d) Mitochondria

Answer

Answer: (c) Lysosomes


Question 7.
Which is the longest cell of the human body?
(a) Nerve cell
(b) Liver cell
(c) Kidney cell
(d) Cardiac cell

Answer

Answer: (a) Nerve cell


Question 8.
Which of the following cell organelles functions both as an intracellular transport system and as a manufacturing surface?
(a) Nucleus
(b) Mitochondria
(c) ER
(d) None of these

Answer

Answer: (c) ER


Question 9.
Which of the following cell organelles help in the storage, modification, and packaging of substances manufactured in the cell?
(a) Golgi apparatus
(b) Nucleus
(c) Mitochondria
(d) Chloroplasts

Answer

Answer: (a) Golgi apparatus


Question 10.
Who proposed the “Black Reaction”?
(a) Benda
(b) Camillo Golgi
(c) Schleiden
(d) None of them

Answer

Answer: (b) Camillo Golgi


Question 11.
Who discovered the nucleus in the cell?
(a) Leeuwenhoek
(b) Robert Brown
(c) Schleiden
(d) Robert Hooke

Answer

Answer: (b) Robert Brown


Question 12.
Which of the following are formed in bone marrow?
(a) RBC
(b) Cartilage cell
(c) Blood platelets
(d) Fibres

Answer

Answer: (a) RBC


Question 13.
Which of the following can be made into crystal?
(a) A bacterium
(b) An amoeba
(c) A virus
(d) A sperm

Answer

Answer: (c) A virus


Question 14.
Chromosomes are made up of:
(a) DNA
(b) Protein
(c) DNA and protein
(d) RNA

Answer

Answer: (c) DNA and protein


Question 15.
Which of the following are covered by a single membrane?
(a) Mitochondria
(b) Vacuole
(c) Ribosome
(d) Plastid

Answer

Answer: (b) Vacuole


Question 16.
Which out of the following is not a function of vacuole?
(a) Storage
(b) Providing turgidity and rigidity to the cell
(c) Waste excretion
(d) Locomotion

Answer

Answer: (d) Locomotion


Question 17.
The cell wall of which one of these is not made up of cellulose?
(a) Bacteria
(b) Hydrilla
(c) Mango tree
(d) Cactus

Answer

Answer: (a) Bacteria


Question 18.
Lysosome arises from:
(a) endoplasmic reticulum
(b) Golgi apparatus
(c) nucleus
(d) mitochondria

Answer

Answer: (b) Golgi apparatus


Question 19.
The kitchen of the cell is:
(a) mitochondria
(b) endoplasmic reticulum
(c) chloroplast
(d) Golgi apparatus

Answer

Answer: (c) chloroplast


Fill in the Blanks.

Question 20.
Every cell is surrounded by a ________

Answer

Answer: cell membrane


Question 21.
The cell wall of a plant cell is made up of _________

Answer

Answer: cellulose


Question 22.
A lysosome is also called ______ bag.

Answer

Answer: suicidal


Question 23.
________ cells contain plastids.

Answer

Answer: Plant


Question 24.
Plants are green due to presence of ________

Answer

Answer: chlorophyll


Question 25.
The cell has special components called _________

Answer

Answer: organelles


Question 26.
Chromoplasts that contain chlorophyll are called _________

Answer

Answer: chloroplasts


Question 27.
The primary function of _______ is storage.

Answer

Answer: leucoplasts


Question 28.
The basic building units of all living organisms is _________

Answer

Answer: cell


True/False.

Question 29.
Prokaryotic cells have no membrane-bound organelles, their chromosome is composed of only nucleic acid and they have only small ribosomes.

Answer

Answer: True


Question 30.
The cell is a Latin word for ‘a little room’.

Answer

Answer: True


Question 31.
Vacuoles are large-sized in animal cells, while plant cells have very small vacuoles.

Answer

Answer: False


Question 32.
The central vacuole of some plant cells may occupy 50-90% of the cell volume.

Answer

Answer: True


Question 33.
Like the mitochondria, plastids also have their own DNA and ribosomes.

Answer

Answer: True


Question 34.
The cell was discovered by Leeuwenhoek.

Answer

Answer: False


Match the Column.

Question 35.

AB
1. A method of plant breeding(i) Protein factory
2. Mitochondria(ii) Cell wall
3. Lysosome(iii) Polyploidy
4. Ribosome(iv) Powerhouse of the cell
5. Cellulose(v) Suicidal bag
Answer

Answer:

AB
1. A method of plant breeding(iii) Polyploidy
2. Mitochondria(iv) Powerhouse of the cell
3. Lysosome(v) Suicidal bag
4. Ribosome(i) Protein factory
5. Cellulose(ii) Cell wall

Answer in one Word/Sentence.

Question 36.
Who called jelly-like the substance of cell protoplasm?

Answer

Answer: J.E. Purkinje


Question 37.
Who postulated cell theory?

Answer

Answer: M. J. Schleiden and T. Schwann


Question 38.
What is called the ‘Suicide-bag’ of the cell?

Answer

Answer: Lysosomes


Question 39.
What is the powerhouse of the cell?

Answer

Answer: Mitochondria


Question 40.
What term was given by Robert Hooke to the walled compartments of honeycomb-like structure in a slice of cork?

Answer

Answer: Cell


Question 41.
When was the electron microscope invented?

Answer

Answer: In 1940


Question 42.
Who discovered the cell?

Answer

Answer: Robert Hooke


Question 43.
Who, with the improved microscope, discovered the free-living cells in pond water for the first time?

Answer

Answer: Leeuwenhoek


Question 44.
Who discovered the nucleus in the cell?

Answer

Answer: Robert Brown


Question 45.
Who suggested that all cells arise from pre-existing cells?

Answer

Answer: R. Virchow


Question 46.
In which organisms, the nucleus is separated from the cytoplasm by a double-layered membrane?

Answer

Answer: In eukaryotes


 


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