Biology Flashcards
Function of the Nucleus?
Controls the activities of the cell.
Function of the Chloroplast?
Absorbs light energy for photosynthesis.
Function of the Cell Wall?
outer layer of the cell which provides strength and protection which supports the plant.
Function of Cell Membrane?
Controls the movement of substances in and out of the cell.
Function of Mitochondria?
Where most energy is released in respiration?
Function of ribosomes?
responsible for synthesising proteins
Function of cytoplasm?
(Jelly-like substance) where most chemical reactions take place
Red blood cells
contains haemoglobin, has no nucleus, transports oxygen
White blood cells
has a nucleus, produces antibodies to fight infection
What are Platelets
involved in blood clotting to prevent and stop bleeding.
What is an Artery?
Carries oxygenated blood away from the heart
What is a vein?
Carries deoxygenated blood to the heart
What is a Capillary?
Takes waste products away from tissues, much smaller that arteries and veins
What are Enzymes?
Proteins that function as biological catalysts.
Why is gamma radiation tracer used instead of beta or alpha?
Gamma rays can pass through the skin
What is Respiration?
the release of energy from food substances into living cells
What is Aerobic respiration?
When your body IS ABLE to supply the cells with the oxygen needed to break down glucose
What is Anaerobic respiration?
When your body IS NOT ABLE to supply the cells with the oxygen needed to break down glucose
What is used to measure radiation?
Geiger counter
Features of living cells?
Cytoplasm, Enzymes, Cell membrane, Ribosomes, DNA
Function of Stomach?
Digests food
Function of small intestine?
Further digests food and absorbs nutrients
Function of large intestine?
Absorbs water molecules from remaining undigested food
Function of liver?
Produces bile
