A plant has been sprayed with a chemical that promotes abscisic acid and inhibits ethylene until the fruit has been exposed to artificial light (like light bulbs indoors). Explain what this would mean for fruits picked at a farm and then sold in stores.

See the answer below

Explanation:

The first thing is that ethylene as a plant hormone primarily functions as a major driver of fruit ripening ahead of abscisic acid. Hence, a fruit that is unable to synthesize or prevented from synthesizing ethylene will not show any sign of ripening.

For, a plant sprayed with an ethylene inhibitor, its fruit will be prevented from ripening. However, if the synthesis of ethylene is stimulated by the exposure of the fruit to artificial light, the implication is that such fruit will appear ripened or otherwise depending on the store it is sold.

If the store has artificial light, in no time, ethylene production would be stimulated and ripening will commence. If otherwise, such fruit will not show any sign of ripening until it is purchased off the store and taken to a home adorned with artificial lights.

the oxygenated blood then leaves the lungs through pulmonary veins, which return it to the left heart, completing the pulmonary cycle. this blood then enters the left atrium, which pumps it through the mitral valve into the left ventricle. from the left ventricle, the blood passes through the aortic valve to the aorta.

deoxygenated blood leaves through the right ventricle through the pulmonary artery. from the right atrium, the blood is pumped through the tricuspid valve (or right atrioventricular valve), into the right ventricle.

cells use diffusion to get substances in and out of themselves. that diffusion will occur across the cell membrane or the outer covering of the cell. because we are talking about the surface of the cell, surface area and volume are  important factors here. as a cell increases in size, its surface area and volume increase as well.  we call that the surface area to volume ratio (sa: vol).  but the catch is that  volume increases at a greater rate than surface  area. in other words, as a cell gets bigger, the sa: vol gets smaller. so a really small cell like bacteria is mostly cell membrane (surface) with very little contents (volume). a really big cell like an egg, is mostly insides with a super thin membrane. so what ends up happening is that the cell cannot efficiently diffuse all of the stuff it needs in/out to survive. therefore cell size is limited to about 100mm. so how do we make organisms bigger than 100mm? cells divide! by dividing and becoming multicellular, organisms are able to grow!   check out the diagrams i attached to see the effect of sa: vol. i hope this ! good luck!