photosynthesis
synthesis of compounds with the aid of radiant energy (especially in plants)
chlorophyll
any of a group of green pigments found in photosynthetic organisms; there are four naturally occurring forms
respiration
a single complete act of breathing in and out
transpiration
the emission of water vapor from the leaves of plants
stoma
a mouth or mouthlike opening (especially one created by surgery on the surface of the body to create an opening to an internal organ)
meteortropism
an effect of climate on biological processes (as the effect on joint pains etc.)
trophotropism
an orienting response to food
chloroplast
plastid containing chlorophyll and other pigments; in plants that carry out photosynthesis
pore
any tiny hole admitting passage of a liquid (fluid or gas)
pistil
the female ovule-bearing part of a flower composed of ovary and style and stigma
stomate
a minute epidermal pore in a leaf or stem through which gases and water vapor can pass
reproductive system
organs and tissues involved in the production and maturation of gametes and in their union and subsequent development as offspring
pollen
the fine spores that contain male gametes and that are borne by an anther in a flowering plant
nectar
a sweet liquid secretion that is attractive to pollinators
