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.
| A | B |
| 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:
| A | B |
| 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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