Module 2.4- Keywords Flashcards
(26 cards)
surface area to volume ratio
the surface area of an organism relative to its ratio
blood vessel
a structure that carries blood
platelet
fragments of cells that make the blood clot when the skin is cut and blood is leaking out
atrium
where blood is pushed to the ventricle
valve
a structure preventing blood from flowing backwards
vein
the blood vessel carrying deoxygenated blood (left side)
vaccination
injecting an antigen of a pathogen to create memory cells against the pathogen
antibody
a disease-killing protein produced by lymphocytes
photosynthesis
the process of a plant creating glucose from sunlight and CO2
phloem
a transport system of a plant distributing glucose and amino acids from the leaves to other parts
transpiration
loss of water vapour from a leaf
saturated
air full with water vapour
heart attack
the heart stopping to beat when a coronary artery is blocked so oxygen is not supplied
exchange surface
a special surface with a high surface area for higher surface area to volume ratio
haemoglobin
a protein in red blood cells carrying oxygen
(de-)oxygenated
blood with/without oxygen
ventricle
the part of the heart that pushes blood
artery
a blood vessel carrying oxygenated blood (right side)
capillary
split arteries that enter the organs
memory cell
clones of a lymphocyte that quickly produce antibodies to kill the immunised pathogen
antigen
a unique part of a pathogen identified by the lymphocyte to produce antibodies
phagocyte
a white blood cell that performs phagocytosis
xylem
a plant transport system carrying water and minerals up from the roots to the leaves
root hair cell
extended roots that pierce through the soil to absorb water
