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CBSE
Class 9 Science
The Fundamental Unit Of Life
Quiz 2
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Cell arises from pre-existing cell was stated by
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Haeckel
0%
Virchow
0%
Hooke
0%
Schleiden
Explanation
Virchow
Cell theory was given by
0%
Schleiden and Schwann
0%
Virchow
0%
Hooke
0%
Haeckel
Explanation
Schleiden and Schwann
The only cell organelle seen in prokaryotic cell is
0%
mitochondria
0%
ribosomes
0%
plastids
0%
lysosomes
Explanation
ribosomes
Organelle without a cell membrane is
0%
ribosome
0%
golgi apparatus
0%
chioroplast
0%
nucleus
Explanation
ribosome
1 μm is
0%
10 m
0%
9 m
0%
11 m
0%
12 m
Explanation
10 m
Lysosome arises from
0%
endoplasmic reticulum
0%
golgi apparatus
0%
nucleus
0%
mitochondria
Explanation
golgi apparatus
Living cells were discovered by
0%
Robert Hooke
0%
Purkinje
0%
Leeuwenhoek
0%
Robert Brown
Explanation
Leeuwenhoek
Select the odd one out.
0%
The movement of water across a semi permeable membrane is affected by the amount of substances dissolved in it.
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Membranes are made of organic molecules like proteins and lipids.
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Molecules soluble in organic solvents can easily pass through the membrane.
0%
Plasma membranes contain chitin sugar in plants.
Explanation
Plasma membranes contain chitin sugar in plants.
The undefined nuclear region of prokaryotes are also known as
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nucleolus
0%
nucleus
0%
nucleoid
0%
nucleic acid
Which of the following can be made into crystal?
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A Virus
0%
A Sperm
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A Bacterium
0%
An Amoeba
Lipid molecules in the cell are sythesized by
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golgi apparatus
0%
plastids
0%
rough endoplasmic reticulum
0%
smooth endoplasmic reticulum
Lysosome arises from
0%
nucleus
0%
golgi apparatus
0%
mitochondria
0%
endoplasmic reticulum
The proteins and lipids, essential for building the cell membrane, are manufactured by
0%
rough endoplasmic reticulum
0%
plasma membrane
0%
mitochondria
0%
golgi apparatus
The only cell organelle seen in prokaryotic cell is
0%
ribosomes
0%
plastids
0%
lysosomes
0%
mitochondria
Cell theory was given by
0%
Schleiden and Schwann
0%
Haeckel
0%
Virchow
0%
Hooke
Which cell organelle plays a crucial role in detoxifying many poisons and drugs in a cell?
0%
Vacuoles
0%
Lysosomes
0%
Golgi apparatus
0%
Smooth endoplasmic reticulum
Organelle without a cell membrane is
0%
ribosome
0%
chloroplast
0%
golgi apparatus
0%
nucleus
The following are a few definitions of osmosis. Read carefully and select the correct definition
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Movement of solvent molecules from its higher concentration to lower concentration
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Movement of solvent molecules from higher concentration to lower concentration of solution through a permeable membrane
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Movement of water molecules from a region of higher concentration to a region of lower concentration through a semipermeable membrane
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Movement of solute molecules from lower concentration to higher concentration of solution through a semipermeable membrane
Select the odd one out
0%
The movement of water across a semi permeable membrane is affected by the amount of substances dissolved in it.
0%
Molecules soluble in organic solvents can easily pass through the membrane
0%
Membranes are made of organic molecules like proteins and lipids
0%
Plasma membranes contain chitin sugar in plants
Plasmolysis in a plant cell is defined as
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shrinkage of nucleoplasm
0%
break down (lysis ) of plasma membrane in hypotonic medium
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none of them
0%
shrinkage of cytoplasm in hypertonic medium
0 h : 0 m : 1 s
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