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OCR Biology A-level [Old]
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Hydrogen Bond
Weak intermolecular bond
between
two molecules
, where one atom is
hydrogen
, possibly bonded with a more
electromagnetic
atom
Polar Covalent Molecule
When two atoms share electrons
unevenly
due to one having a
higher electronegativity
Electronegativity
The ability of an atom to
attract
a
pair
of
electrons
in a
covalent bond
, altering the
distribution
of
electrons
Diatomic
makes a
covalent bond
with itself
Ultrastructure
Features of the
cell
that can be seen at
high magnification
Carbohydrates
Saccharides
, made of
Carbon,
Hydrogen
and
Oxygen
Prokaryote
single-called prokaryotic organism
from the
kingdom Prokaryotae
Eukaryote
Multicellular eukaryotic organisms
like
animals
,
plants
and
fungi
as well as single-celled
protoctista
Nucleus
Contains
chromosome
/
genetic material
/
DNA
and directs
protein synthesis