Any substance that has enhanced reactivity, or altered properties in the presence of light is said to be photoreactive. For example, a photovoltaic cell enables sunlight to be processed into usable electricity by exciting outer shell electrons on some metals. Photoreactive substances can either be natural, such as chlorophyll, or entirely man-made in the case of a photovoltaic cell.
Answer:
Chitin
Explanation:
I have no explanation for knowing this other than I have a good memory and I remember it from Biology class :)
have a good day
(please give me brainliest)
Answer:
Carrier proteins are involved in facilitated diffusion and active transport of substances out of or into the cell (e.g. diffusion of sugars, amino acids and nucleosides, uptake of glucose, transportation of salts, glucose, amino acids, etc.).
Explanation:
Answer:
The correct answer is option b. "The lipid bilayer is a solid at body temperature, thus protecting the cell".
Explanation:
The fluid mosaic model describes the fluid character of the cell's membrane structure as a dynamic arrangement of components that include phospholipids, proteins and carbohydrates. One of the principles of the fluid mosaic model is that the lipid bilayer that comprises the cell's membrane is solid at body temperature, thus it functions as a protective mechanism for the cell. The higher the temperature, the more fluid the cell membrane is.
Mr. Turner, my American history teacher, taught us about the U.S. home front during WWII. Enjoy!
