AQA A LEVEL BIOLOGY FINAL PAPER
EXAMPREP COMPLETE QUESTIONS AND
ANSWERS VIEW AHEAD STUDY SHEET
◉ Activation Energy. Answer: The minimum amount of kinetic
energy that particles need to have in order to react when they collide.
◉ Active Site. Answer: The part of an enzyme where a substrate
molecule binds.
◉ Active Transport. Answer: Active movement of molecules and ions
across plasma membranes, usually against a concentration gradient.
◉ Adaptation. Answer: A characteristic that increases an organism's
chances of survival, e.g. antibiotic resistance.
◉ Affinity for Oxygen. Answer: The tendency a molecule has to bind
with oxygen.
◉ Agglutination. Answer: The clumping together of cells.
◉ AIDS. Answer: A condition caused by HIV, in which the immune
system deteriorates and eventually fails.
,◉ Allele. Answer: An alternative form of a gene.
◉ Alveolus. Answer: A microscopic air sac in the lungs where gas
exchange occurs.
◉ Amino Acid. Answer: A monomer of proteins.
◉ Anomalous Result. Answer: A result that doesn't fit in with the
pattern of the other results in a set of data.
◉ Antibiotic. Answer: A medicine that is designed to kill or inhibit the
growth of bacteria (or sometimes fungi).
◉ Antibiotic Resistance. Answer: When bacteria are able to survive in
the presence of antibiotics.
◉ Antibody. Answer: A protein produced by ß-cells in response to the
presence of a pathogen.
◉ Antigen. Answer: A molecule (usually a protein) that can trigger an
immune response.
◉ Antigenic Variation. Answer: Where pathogens change their
antigens.
,◉ Antigen. Answer: Presenting Cell - An immune system cell that
processes and presents antigens on its surface to activate other
immune system cells.
◉ Antimicrobial Substance. Answer: A substance designed to kill
microorganisms.
◉ Artefact (microscope). Answer: Something you can see on a
microscope slide that isn't part of the specimen you're looking at.
◉ Arteriole. Answer: A blood vessel that branches off an artery.
◉ Aseptic Technique. Answer: A technique used to prevent the
unwanted growth or transfer of microorganisms.
◉ Atheroma. Answer: A fibrous plaque caused by the build up and
hardening of white blood cells, lipids and connective tissue.
◉ ATP. Answer: A molecule made up of adenine, a ribose sugar and
three phosphate groups. It is the immediate source of energy in a cell.
◉ ATP Hydrolase. Answer: An enzyme which catalyses the hydrolysis
of ATP into ADP and P.
◉ ATP Synthase. Answer: An enzyme which catalyses the synthesis
of ATP from ADP and P.
, ◉ Atrioventricular Valve. Answer: A valve in the heart linking the
atria to the ventricles.
◉ Attachment Protein. Answer: A protein on the surface of a virus
cling onto a suitable host cell.
◉ Autoradiography. Answer: A technique that reveals the location of
radioactive tracers.
◉ B. Answer: cell - A type of white blood cell involved in the
immune response. It produces antibodies.
◉ Base. Answer: A nitrogen-containing molecule that forms part of a
DNA nucleotide.
◉ Benedict's Test. Answer: A biochemical test for the presence of
sugars
◉ Bile Salt. Answer: A type of salt produced by the liver to aid the
digestion of lipids.
◉ Binary Fission. Answer: The process by which prokaryotic cells
replicate.
EXAMPREP COMPLETE QUESTIONS AND
ANSWERS VIEW AHEAD STUDY SHEET
◉ Activation Energy. Answer: The minimum amount of kinetic
energy that particles need to have in order to react when they collide.
◉ Active Site. Answer: The part of an enzyme where a substrate
molecule binds.
◉ Active Transport. Answer: Active movement of molecules and ions
across plasma membranes, usually against a concentration gradient.
◉ Adaptation. Answer: A characteristic that increases an organism's
chances of survival, e.g. antibiotic resistance.
◉ Affinity for Oxygen. Answer: The tendency a molecule has to bind
with oxygen.
◉ Agglutination. Answer: The clumping together of cells.
◉ AIDS. Answer: A condition caused by HIV, in which the immune
system deteriorates and eventually fails.
,◉ Allele. Answer: An alternative form of a gene.
◉ Alveolus. Answer: A microscopic air sac in the lungs where gas
exchange occurs.
◉ Amino Acid. Answer: A monomer of proteins.
◉ Anomalous Result. Answer: A result that doesn't fit in with the
pattern of the other results in a set of data.
◉ Antibiotic. Answer: A medicine that is designed to kill or inhibit the
growth of bacteria (or sometimes fungi).
◉ Antibiotic Resistance. Answer: When bacteria are able to survive in
the presence of antibiotics.
◉ Antibody. Answer: A protein produced by ß-cells in response to the
presence of a pathogen.
◉ Antigen. Answer: A molecule (usually a protein) that can trigger an
immune response.
◉ Antigenic Variation. Answer: Where pathogens change their
antigens.
,◉ Antigen. Answer: Presenting Cell - An immune system cell that
processes and presents antigens on its surface to activate other
immune system cells.
◉ Antimicrobial Substance. Answer: A substance designed to kill
microorganisms.
◉ Artefact (microscope). Answer: Something you can see on a
microscope slide that isn't part of the specimen you're looking at.
◉ Arteriole. Answer: A blood vessel that branches off an artery.
◉ Aseptic Technique. Answer: A technique used to prevent the
unwanted growth or transfer of microorganisms.
◉ Atheroma. Answer: A fibrous plaque caused by the build up and
hardening of white blood cells, lipids and connective tissue.
◉ ATP. Answer: A molecule made up of adenine, a ribose sugar and
three phosphate groups. It is the immediate source of energy in a cell.
◉ ATP Hydrolase. Answer: An enzyme which catalyses the hydrolysis
of ATP into ADP and P.
◉ ATP Synthase. Answer: An enzyme which catalyses the synthesis
of ATP from ADP and P.
, ◉ Atrioventricular Valve. Answer: A valve in the heart linking the
atria to the ventricles.
◉ Attachment Protein. Answer: A protein on the surface of a virus
cling onto a suitable host cell.
◉ Autoradiography. Answer: A technique that reveals the location of
radioactive tracers.
◉ B. Answer: cell - A type of white blood cell involved in the
immune response. It produces antibodies.
◉ Base. Answer: A nitrogen-containing molecule that forms part of a
DNA nucleotide.
◉ Benedict's Test. Answer: A biochemical test for the presence of
sugars
◉ Bile Salt. Answer: A type of salt produced by the liver to aid the
digestion of lipids.
◉ Binary Fission. Answer: The process by which prokaryotic cells
replicate.
