Organising Animals and Plants Flashcards
Ventricles?
Large chambers in the heart, right vent to lungs, left vent to body
Atria
Small chambers of heart, fill with blood into vena cava and pulmonary vein, then pump blood into ventricles
Aorta
Artery leaving the left ventricle
Vena cava?
Major vein transporting blood from whole body back to heart
Pulmonary vein
Vein leading from lungs to heart
Artery
Blood vessel that carries blood away from heart at high pressure
Capillary?
Very small, thin walled blood vessel where exchange happens
Vein?
Blood vessels that return blood to the heart at low pressure
Coronary blood vessel
Heart needs its own blood supply, from this
Plasma?
Fluid in red blood cells with glucose, protein, ions and CO2
Red blood cells
Biconcave shaped cells that contain haemoglobin which binds to oxygen making oxyhaemoglobin
White blood cells
Cells that fight pathogens and release antibodies
Platelets?
Fragment of cells that cause blood clotting
Epidermal tissue?
Plant tissue that covers the whole surface
Palisade mesophyll
Tissue in leaf where photosynthesis happens
Spong mesophyll
Tissue in the leaf with air between cells, specialised for gas exchange
Xylem
Narrow tubes in roots, stem, leaves which transport water and mineral upwards
Phloem
Tubes that run alongside xylem, transport sugards and dissolve water, (transpiration)
Meristem?
Type of tissue found at tips of roots containing stem cells so they can differentiate
Guard cell
Guard cells form stomata on leaves, holes where gas is exchanged, can open and close as required
Transpiration?
Process where plants lose water as vapour through stomata
Factors affecting transpiration?
High temp, low humidity, high air flow, high light intensity
Stomata
Holes where gas are exchanged
What do stomata allow to enter?
Carbon dioxide for photosynthesis
