small openings located on the epidermis that allow for the exchange of gases to enter and exit the leaf.
green pigment located in the chloroplast responsible for absorbing the sun's energy
the process during which a plants chlorophyll traps light energy and sugars are produced
A series of chemical reactions that breaks down food molecules and releases energy
Movement caused by a change in growth that can be positive or negative
A t ype of plant hormone that causes plant stems and leaves to exhibit positive responses to light.
A plant's response to the number of hours of daylight and darkness it receives daily
Plants that require less than 10-12 hours of darkness to flower
Plants that need more than 12 hours of darkness to flower
Plants that have no specific photoperiod, and the flowering process can begin within a range of hours of darkness.