Science Word List AT4 Flashcards
assimlilation
a process carried out by living things where nutrients are digested, absorbed and incorporated into the body.
Diffusion
Movement of a substance from an area of high concentration of that substance to an area of lower concentration.
Xylem
vessels in a plant responsible for moving water
chlorophyll
Green pigment in plants that absorbs light energy used to carry out photosynthesis
Phloem
vessels in a plant responsible for conductiong organic compunds such as glucose
Stomata
pores on the underside of a leaf through which oxygen and carbon dioxide can move
genus
A taxonomic category above the species level, designated by the first word of a species’ two-part scientific name.
species
The lowest taxonomic classification whose members can interbreedand produce viable offspring.
Protists
a group of unicellular organisms which possess membrane bound organelles and are classified based on their method of movement
Fungi
A group of organisms which possess membranebound organelles but cannot photosynthesise
Bacteria
A group of unicellular which do not possess membrane bound organelles
Mitosis
a type of cell division which produces two identical daughter cells from a single parent cell
Osmosis
The movement of a water from a dilute solution to a concentration solution across a semi-permeable membrane.