The correct answer is D. Cell Membrane because the cell membrane contains two phospholipid layers with the protein molecules attached to them throughout.
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The minimum voltage is observed as the resting potential of the cell membrane. This has a value of -70 millivolts and exists when there is no stimulus present. After a stimulus is applied, the sodium-potassium channels allow the movement of ions in and out of the cell membrane. Before the channel is able to close again and restore itself to the resting potential, hyperpolarization occurs and a maximum voltage of about 30-40 millivolts is achieved. <span />
Coupled transport is also known as co-transport. Plant cells use the hydrogen gradient created by proton pumps to actively transport nutrients to the cells. Electrogenic pumps can be coupled to actively transport other substances. Example- cells pump H+ ions out of cell then use the diffusion of H+ back into cell down its gradient to drive the uptake of sucrose into cells.
The part is known as Myelin Sheath. It serves to insulate the axon and for the nerve impulses to jump from one node of Ranvier to the other.
Answer:
In physics and chemistry, the law of conservation of energy states that the total energy of an isolated system remains constant; it is said to be conserved over time. This law, first proposed and tested by Émilie du Châtelet, means that energy can neither be created nor destroyed; rather, it can only be transformed or transferred from one form to another. For instance, chemical energy is converted to kinetic energy when a stick of dynamite explodes. If one adds up all forms of energy that were released in the explosion, such as the kinetic energy and potential energy of the pieces, as well as heat and sound, one will get the exact decrease of chemical energy in the combustion of the dynamite. Classically, conservation of energy was distinct from conservation of mass; however, special relativity showed that mass is related to energy and vice versa by E = mc², and science now takes the view that mass–energy as a whole is conserved. Theoretically, this implies that any object with mass can itself be converted to pure energy, and vice versa, though this is believed to be possible only under the most extreme of physical conditions, such as likely existed in the universe very shortly after the Big Bang.
Explanation:
Conserving energy can lower heating, cooling, lighting, and other costs. Environment. Energy has to be created somehow. Be it coal, nuclear, water, or oil, all energy is created at the cost of the environment or the air we breath. Saving energy is one way to help protect the environment for future generations.
