Answer:
Plasma
membrane is made up of lipids and proteins.
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A
solution having solute concentration lower than that of the cell sap is call hypotonic
solution.
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A
solution having solute concentration higher than that of the cell sap called
hypertonic solution.
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A
solution having solute concentration same as that of the cell sap is call isotonic
solution.
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Cell
wall is made up of cellulose.
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Amoeba, Bacteria, Paramecium.
(Any one)
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Fungi,
plants, animals. (Any one)
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The
diffusion of water or solvent through a semipermeable membrane from a solution
of lower concentration of solutes to a solution of higher concentration of
solutes is called osmosis.
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The
movement of molecules across a membrane in cells against concentration gradient
with the help of ATP units is called active transport.
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Plastids
and mitochondria.
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Lysosomes
are known as 'suicidal bags' because when cell gets damaged due to disturbance
in cellular metabolism, lysosomes may burst and the digest enzymes thus
released digest their own cell.
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Ribosomes
present in the cell synthesise proteins and are called protein factories of the
cell. These may be attached on the surface of rough endoplasmic reticulum or
lie freely in the cell.
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Lysosome.
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Endocytosis
is the ingestion of material by folding of the membrane around it for its
engulfment as seen in Amoeba.
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Genes
are located on chromosomes in the nucleus.
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Cell
wall and chloroplast.
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Lysosomes
and centrioles.
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Golgi apparatus.
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Plasma
membrane.
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Cell wall.
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Vacuoles.
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Endoplasmic
reticulum.
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Microscope
is an optical instrument consisting of a lens or combination of lenses which
renders minute objects distinctly visible.
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Light
microscope is called a compound microscope because it consists of two or more
lens systems.
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Nucleolus.
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Chromosomes
are made up of DNA and protein.
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It
is the shrinkage of cytoplasm away from cell membrane when kept in a hypertonic
medium.
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The
undefined nuclear region of prokaryotes is known as nucleoid.
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Mitochondria
and plasmids contain DNA.
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Ribosomes.
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Viruses.
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Peroxisome.
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Ribosome.
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Movement
of molecules from a region of their high concentration to a region of their low
concentration is called diffusion.
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For
endocytosis to occur, the outermost membrane should be flexible. But in plant
cells, cell wall is the outermost membrane which is very rigid. Hence, no endocytosis
occurs in plants.
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Nucleus,
also known as the brain of the cell, controls most of the activities of the
cell because it contains DNA (Deoxyribonucleic acid) which contains all the
information of the cell.
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