unit 3 science vocab Flashcards
photsynthesis
the process by which plants use sunlight, water, and carbon dioxide to create oxygen and energy in the form of sugar
autotroph
an organism that can produce its own food using light, water, carbon dioxide, or other chemicals
heterotroph
organisms that consume other organisms for energy
pigment
the natural coloring matter of animal or plant tissue
chlorophyll
pigment found naturally in plants
stomata
tiny openings present on the epidermis of leaves
cellular respiration
a series of chemical reactions that break down glucose to produce ATP
fermentation
the breaking down of sugar molecules into simpler compounds to produce substances that can be used in making chemical energy
fertilization
a complex multi-step process that is complete in 24 hours
pollination
the act of transferring pollen grains from the male anther of a flower to the female
sexual reproudction
the production of new organisms by the combination of genetic information of two individuals of different sexes
asexual reproudction
a mode of reproduction in which a new offspring is produced by a single parent