Junior Cert Biology H.L.
Most of the definitions required for the Biology section in Junior Cert Science
Terms in this set (31)
passing of digested food into the bloodstream in the small intestine.
rain water with a ph of less than 5.5.acid rain damages the roots of trees and causes fish kills.
respiration where oxygen is used
word equation of aerobic respiration
air sacs in the lungs that control gaseous exchange
pairs of muscles that work in opposition to each other eg biceps and triceps in arm
produces the pollen,which contains the male gamete.the male organs are called the stamens.the anther is the top part of the stamen
chemicals produced from fungi and bacteria that cure diseases by fungi and bacteria.
antibiotics have no effect on ?
are produced by our white blood cells to protect us against viruses and bacteria.
involves only one parent and there is no gametes eg strawberry
the body cells use for energy, growth and repair
very small cells.can be helpful or harmful
ball and socket joint
allow movement in many planes hip and shoulder
using living things to produce useful products for humans
connection between two bones
small blood vessels that connect arteries to veins
basic living unit of plant or animal
thread like structure found in nucleus of a cell
amount of chromosomes in human
46 ,23 pairs
chromosomes in sex cell
the protection,preservation and careful use of our natural resources
organisms that feed directly or indirectly on green plants
organisms that feed on dead plants and animals eg earthworms ,bacteria,fungi
carry water up a plant from the roots
growth of a plant toward certain stimulus
feed off a living organsim eg viruses
clot the blood
methods of seed dispersal
is substance acted on by an enzyme