HUBS1406 Exam Questions and Answers
with Verified Solutions | Latest Updated 2026
a charged atom or molecule that ion
has
different number of protons and
electrons
positively charged ions (when they cations
lose an electron)
negatively charged ions (when anions
they
gain an electron)
- they conduct electricity importance of ions
- can act as solute which are used
in
muscle contraction (when neutron
fires, it sets up concentration
gradient helping/directing electric
impulses
soluble inorganic molecules whose electrolyte
ions will conduct an electrical
current solution
found in blood, urine and body
fluids
,NaCl important electrocytes in the body
KCl
CaPO4
NaHCO3
molecules that make up living organic compounds
things
that contain carbon, hydrogen and
oxygen
molecules that make up non-living inorganic compound
things containing variety of
elements
including carbon
- carbohydrates important classes of organic molecules
- lipids
- proteins
- nucleic acid
- high energy compounds e.g. ATP
- include monosaccharide, function of carbohydrates
disaccharide and polysaccharide
-used as fuel for energy
, - polypeptide made up of amino proteins
acids, major functional and
structural
component of most body cells
- types of proteins include:
hormones - act as chemical
messengers
enzymes - catalyse metabolic
reactions
structural -
- hormones - act as chemical types and functions of protein
messengers
- enzymes - catalyse metabolic
reactions
- structural - fibrous structural
proteins
- defence - part of immune system
(e.g. antibodies)
- transport - carry vital substances
to
cells e.g. haemoglobin
- receptor - control entry and exit
of
cells, activation of enzymes,
stimulate endocrine glands
- contractile - regulate strength
and
speed of heart contraction
organic fats and fatty acids lipids
with Verified Solutions | Latest Updated 2026
a charged atom or molecule that ion
has
different number of protons and
electrons
positively charged ions (when they cations
lose an electron)
negatively charged ions (when anions
they
gain an electron)
- they conduct electricity importance of ions
- can act as solute which are used
in
muscle contraction (when neutron
fires, it sets up concentration
gradient helping/directing electric
impulses
soluble inorganic molecules whose electrolyte
ions will conduct an electrical
current solution
found in blood, urine and body
fluids
,NaCl important electrocytes in the body
KCl
CaPO4
NaHCO3
molecules that make up living organic compounds
things
that contain carbon, hydrogen and
oxygen
molecules that make up non-living inorganic compound
things containing variety of
elements
including carbon
- carbohydrates important classes of organic molecules
- lipids
- proteins
- nucleic acid
- high energy compounds e.g. ATP
- include monosaccharide, function of carbohydrates
disaccharide and polysaccharide
-used as fuel for energy
, - polypeptide made up of amino proteins
acids, major functional and
structural
component of most body cells
- types of proteins include:
hormones - act as chemical
messengers
enzymes - catalyse metabolic
reactions
structural -
- hormones - act as chemical types and functions of protein
messengers
- enzymes - catalyse metabolic
reactions
- structural - fibrous structural
proteins
- defence - part of immune system
(e.g. antibodies)
- transport - carry vital substances
to
cells e.g. haemoglobin
- receptor - control entry and exit
of
cells, activation of enzymes,
stimulate endocrine glands
- contractile - regulate strength
and
speed of heart contraction
organic fats and fatty acids lipids
