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Pharmacy Year 1
Human Body
Intro to Living Cells
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aisha anifowoshe
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Cards (11)
Cells
The
fundamental unit
of all living things on earth
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What cells do
1. Take
nutrients
and free
energy
from the surroundings
2. Make copies of
nutrients
and free
energy
3.
Divide
to create new
cells
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All living things are made up of
cells
and
cell products
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Universal features of cells
Evolved from a common
ancestor
cell
Surrounded by a
plasma membrane
Exchange molecules with their
surroundings
, taking up
nutrients
Communicate
Store
hereditary
information as
DNA
Use the same means and code to
encode
and
store
hereditary information
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All
life
must have derived from a single ancestor
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DNA
Double-stranded
polymer of nucleotide building blocks
A always pairs with
T
, C always pairs with
G
Sequence of
nucleotides
encodes information for making
proteins
One gene is one DNA
fragment
corresponding to one
protein
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Protein synthesis
1. DNA is
transcribed
into
RNA
2.
RNA
is used as a template to make the
protein
3.
Ribosomes
translate RNA into
protein
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Nucleotides
Contain information for making
proteins
made up of amino acid
building blocks
Three
nucleotides encode
one
specific amino acid
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Cells are made from a few simple
building blocks
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Cells
divide
and
die
and therefore are constantly being replaced
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Homeostasis
The ability or tendency of an organism/cell to maintain
internal
equilibrium by adjusting its
physiological
processes
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