Biology A level Edexcel: topic 1 Exam
Comprehensive study Guide
Solvent - Answer>>A liquid substance capable of dissolving
other substances
Dipolar - Answer>>A molecule that has a partial - on one side
and a partial + on the other
Cohesive - Answer>>Sticking together
aerobic respiration - Answer>>Respiration that requires oxygen
and glucose
multicellular organism - Answer>>Organism made up of many
cells
Mass transport system - Answer>>A system that carried
substances from specialised exchange organs to cells
circulatory system - Answer>>A system that carries oxygen and
nutrients around the body
Single circulatory system - Answer>>Blood passes through the
heart once only in a complete circuit of the body e.g. in a fish
Double circulatory system - Answer>>Blood passes through the
heart twice in one complete circuit of the body e.g. in a human
coronary arteries - Answer>>blood vessels that branch from the
aorta and carry oxygen-rich blood to the heart muscle
Valves - Answer>>Prevent back flow of blood
, Capillaries - Answer>>Smallest blood vessels where gas
exchange takes place
Veins - Answer>>Blood vessels that carry blood back to the
heart
Arteries - Answer>>Blood vessels that carry blood away from
the heart
Atrium systole - Answer>>The atrium contracts, increasing
pressure, forcing blood flow into the ventricles
ventricle systole - Answer>>Ventricle contract forcing blood flow
into aorta and pulmonary arteries
cardiac diastole - Answer>>The heart relaxes, lowering
pressure
Atheroma - Answer>>fatty deposit or plaque within the arterial
wall
Clotting cascade - Answer>>blood comes in contact with
collagen. Blood platelets begin secreting inflammatory factors.
cardiovascular disease - Answer>>a disease of the heart and
blood vessels
antihypertensive - Answer>>a medication administered to lower
blood pressure
Statins - Answer>>drugs used to lower cholesterol in the
bloodstream.
Anticoagulants - Answer>>Prevent clot formation
Comprehensive study Guide
Solvent - Answer>>A liquid substance capable of dissolving
other substances
Dipolar - Answer>>A molecule that has a partial - on one side
and a partial + on the other
Cohesive - Answer>>Sticking together
aerobic respiration - Answer>>Respiration that requires oxygen
and glucose
multicellular organism - Answer>>Organism made up of many
cells
Mass transport system - Answer>>A system that carried
substances from specialised exchange organs to cells
circulatory system - Answer>>A system that carries oxygen and
nutrients around the body
Single circulatory system - Answer>>Blood passes through the
heart once only in a complete circuit of the body e.g. in a fish
Double circulatory system - Answer>>Blood passes through the
heart twice in one complete circuit of the body e.g. in a human
coronary arteries - Answer>>blood vessels that branch from the
aorta and carry oxygen-rich blood to the heart muscle
Valves - Answer>>Prevent back flow of blood
, Capillaries - Answer>>Smallest blood vessels where gas
exchange takes place
Veins - Answer>>Blood vessels that carry blood back to the
heart
Arteries - Answer>>Blood vessels that carry blood away from
the heart
Atrium systole - Answer>>The atrium contracts, increasing
pressure, forcing blood flow into the ventricles
ventricle systole - Answer>>Ventricle contract forcing blood flow
into aorta and pulmonary arteries
cardiac diastole - Answer>>The heart relaxes, lowering
pressure
Atheroma - Answer>>fatty deposit or plaque within the arterial
wall
Clotting cascade - Answer>>blood comes in contact with
collagen. Blood platelets begin secreting inflammatory factors.
cardiovascular disease - Answer>>a disease of the heart and
blood vessels
antihypertensive - Answer>>a medication administered to lower
blood pressure
Statins - Answer>>drugs used to lower cholesterol in the
bloodstream.
Anticoagulants - Answer>>Prevent clot formation
