Plant Structures Exam 3

Flowering that occurs strictly in response to internal development

First major photoreceptors, responsible for pulling red and far red light

Flowering is promoted by certain environmental cues but will eventually occur in the absence of such cues

Acts in mature climacteric fruit, and in senescing petals in some species, ethylene stimulates its own biosynthesis (autocatalytic)

Micro moles of quanta per square meter per second

Berries contain at least one fertilized seed that is subsequently aborted, leaving a small & soft undeveloped seed trace

Chilling to break seed dormancy, synchronizes germination, surrounding tissue increases chilling requirement

Seeds that have lost their primary dormancy can become dormant again if they have been exposed to unfavorable growth conditions for a long period of time

Flowers have multiple carpels that are not joined together

Female gamete that will combine with a sperm cell to form the zygote

The physiological state in which far red light will not act to reverse events induced by red light interactions

Seed dormancy that is caused directly by the embryo and isn't due to any influence of the seed coat or surrounding tissues, typically induced by abscisic acid (ABA) at the end of embryogenesis

250-500 nanometers

1. Pollen grain adheres to stigma

710-850 nanometers

Small molecules or ions made quickly and mobilized fast

1. Plant haploid gametophytes produce gametes (egg & sperm) by mitosis, while animal haploid gametes are produced by meiosis

Sustenance for before the embryo before it can photosynthesize

The photoperiod-regulated process that occurs in the leaves resulting in the transmission of a floral stimulus to the shoot apex

Light absorbing pigment molecule that is usually bound to a protein, most photoreceptors are bound to one of these