Class 9 Science Chapter 5 MCQ The Fundamental Unit of Life
MCQ on The Fundamental Unit of Life Class 9
Select and write the most appripriate option out of the four options for each of the question :
Question 1.
Who discovered the cell ?
A) Robert Hooke
B) Robert Brown
C) Robert John
D) Robert Virchow
Answer:
A) Robert Hooke
Question 2.
Robert Hook observed the cell in …………
A) Paper
B) Honey Bee
C) Cork
D) Root
Answer:
C) Cork
Question 3.
Who discovered the free living cells in pond water for the first time
A) Leeuwenhoek
B) Robert Brown
C) Shlieden
D) Schwann
Answer:
A) Leeuwenhoek
Question 4.
Robert Brown discovered the Nucleus in the year
A) 1839
B) 1835
C) 1831
D) 1834
Answer:
C) 1831
Question 5.
Who coined three term protoplasm ?
A) Purkinje
B) Schleiden
C) Schwann
D) Robert Brown
Answer:
A) Purkinje
Question 6.
Who proposed the cell theory?
A) Purkinje
B) Schleiden
C) Schwann
D) B & C
Answer:
D) B & C
Question 7.
The cell theory was further extended by …………
A) Virchow
B) Purkinje
C) Schleiden
D) Schwann
Answer:
A) Virchow
Question 8.
All cells arise from ………… cells.
A) Pre-existing
B) Bacteria
C) Plant cell
D) Virus
Answer:
A) Pre-existing
Question 9.
What is the fundamental and functional unit of life ?
A) Nucleus
B) Mitochondria
C) Cell
D) Vacuole
Answer:
D) Vacuole
Question 10.
The outermost covering of the cell which allows the entry and exit of matrials in and out of the cell
A) Cell wall
B) Plasma membrane
C) Nucleus
D) Nuclear membrane
Answer:
B) Plasma membrane
Question 11.
The spontaneous movement of a substance from a region of high concentration to a region where its concentration low is called ………….
A) Dialysis
B) Evaporation
C) Diffusion
D) Condensation
Answer:
C) Diffusion
Question 12.
The movement of water molecules through a selective permeable membrane is called ………..
A) Diffusion
B) Evaporation
C) Condensation
D) Osmosis
Answer:
C) Condensation
Question 13.
If the medium surrounding the cell has a higher water concentration than the cell, the cell will gain water by osmosis. The cell is likely ………… up.
A) Shrink
B) Swell
C) Evacuated
D) Evaporated
Answer:
B) Swell
Question 14.
If the medium surrounding the cell has a same water concentration as the cell, there is no overall movement of water. They cell stay the ………… size.
A) Big
B) Small
C) Circle
D) Same
Answer:
D) Same
Question 15.
If the medium surrounding the cell has a lower concentration of water than the cell, the cell will loses water. Then the cell will …………
A) Shrink
B) Stand
C) Swell
D) Split
Answer:
A) Shrink
Question 16.
We found endocytosis in …………
A) Plant
B) Amoeba
C) Shake
D) None
Answer:
B) Amoeba
Question 17.
Functional segments of DNA …………
A) Nucleus
B) Genes
C) Leaves
D) Roots
Answer:
B) Genes
Question 18.
Which part controls all the activities of the cell ?
A) Nucleus
B) Endoplasmic Reticulum
C) Golgi Apparatus
D) Ribosomes
Answer:
A) Nucleus
Question 19.
The fluid portion of the cell is …………
A) Golgi Apparatus
B) Cytoplasm
C) Nuclear membrane
D) Liquid
Answer:
B) Cytoplasm
Question 20.
Is to serve as channel for the transportation of materials? (especially proteins)
A) Nucleus
B) Endoplasmic Reticulum
C) Ribosomes
D) Mitochondria
Answer:
B) Endoplasmic Reticulum
Question 21.
Golgi Apparatus was first described by …………
A) Camillo Golgi
B) Virchow
C) Schleiden
D) Schwann
Answer:
A) Camillo Golgi
Question 22.
Among these, the suicide of bag of cell is …………
A) Ribosome
B) Golgi complex
C) Lysosomes
D) Robert Brown
Answer:
C) Lysosomes
Question 23.
Mitochondria known as the ………… of the cell.
A) House
B) Power house
C) Energy
D) Degenerator
Answer:
B) Power house
Question 24.
Plastids are present in ………… cells only.
A) Plant
B) Animal
C) Both A & B
D) None
Answer:
A) Plant
Question 25.
The coloured plastids are called …………
A) Chromoplasts
B) Chloroplasts
C) Leucoplasts
D) Both A & C
Answer:
A) Chromoplasts
Question 26.
The colourless plastids are …………
A) Chromoplasts
B) Chloroplasts
C) Leucoplasts
D) Both A & C
Answer:
C) Leucoplasts
Question 27.
Chloroplasts contain ………… coloured pigments which helps in photosynthesis
A) Chlorophyll
B) Leucophyll
C) Leucoplasts
D) Both A & C
Answer:
A) Chlorophyll
Question 28.
The size of vacuole in plant cell is …………
A) Big
B) Small
C) Less
D) normal
Answer:
A) Big
Question 29.
The process by which new cells are made is called …………
A) Cell Division
B) Elongation
C) Germination
D) Plantation
Answer:
A) Cell Division
Question 30.
In mitosis, the mother cell divides to form ………… identical daughters …………
A) 1
B) 3
C) 2
D) 4
Answer:
C) 2
Question 31.
In Meiosis the number of daughter cells …………
A) 1
B) 3
C) 2
D) 4
Answer:
D) 4
Question 32.
In mitosis the number of chromosomes in daughter cell are … as mother cell. ( )
A) Different
B) Same
C) A & B
D) None
Answer:
B) Same
Question 33.
In Meiosis the number of chromosomes are ………… to the number of mother cells ( )
A) Full
B) Higher
C) Half
D) Less
Answer:
C) Half
Question 34.
Which of these options are not functions of ribosomes ?
i) It helps in manufacture of protein molecules
ii) It helps in manufacture of enzymes.
iii) It helps if manufacture of hormones
iv) It helps in manufacture of starch molecules.
A) i & ii
B) ii and iii
C) iii & iv
D) i only
Answer:
D) i only
Question 35.
Plasmolysis in a plant cell is defined as ……….
A) Break down plasma membrane in hypotonic medium
B) Shrinkage of cytoplasm in hypertonic medium.
C) Shrinkage of nucleo plasm
D) None of these
Answer:
B) Shrinkage of cytoplasm in hypertonic medium.
Question 36.
Which of the following are covered by a single membrane ?
i) Mitochondria
ii) Vacuole
iii) Lysosome
iv) Plastid
A) i & ii
B) ii & iii
C) iv only
D) i & iii
Answer:
B) ii & iii
Question 37.
Find out the false one.
A) Golgi Apparatus first described by Cabrillo Golgi
B) Nucleus, Mitochondria, Plastids have DNA, hence they synthesise their own proteins.
C) Plasma membrane do not permits the different materials in out of the cell.
D) Robert Brown discovered the Nucleus.
Answer:
C) Plasma membrane do not permits the different materials in out of the cell.
Question 38.
The undefined nuclear region of prokaryotes also known as ………….
A) Nucleus
B) Nucleolus
C) Nucleic Acid
D) Nucleoid
Answer:
C) Nucleic Acid
Question 39.
Identify the type of cell division.
A) Mitosis
B) Meiosis
C) Lipids
D) Proteins
Answer:
A) Mitosis
Question 40.
Identify the cell …
A) Prokaryotic cell
B) Eukaryotic cell
C) Virus
D) Nucleoid
Answer:
B) Eukaryotic cell
Question 41.
Identify the cell organelle.
A) Golgi complex
B) Cytoplasm
C) Endoplasmic Reticulum
D) Mitochondria
Answer:
A) Golgi complex
Question 42.
The nucleus is at the side of the cell wall. Why?
A) Endoplasmic Reticulum occupied the space
B) Vacuole Reticulum occupied the space
C) Golgi Apparatus occupied the space
D) Mitochondira Reticulum occupied the space
Answer:
B) Vacuole Reticulum occupied the space