Dictionary » E » Excites



1. To call to activity in any way; to rouse to feeling; to kindle to passionate emotion; to stir up to combined or general activity; as, to excite a person, the spirits, the passions; to excite a mutiny or insurrection; to excite heat by friction.

2. (Science: physiology) to call forth or increase the vital activity of an organism, or any of its parts.

Synonym: to incite, awaken, animate, rouse or arouse, stimulate, inflame, irritate, provoke.

to excite, incite. When we excite we rouse into action feelings which were less strong; when we incite we spur on or urge forward to a specific act or end. Demosthenes excited the passions of the Athenians against philip, and thus incited the whole nation to unite in the war against him. Antony, by his speech over the body of Caesar, so excited the feelings of the populace, that Brutus and his companions were compelled to flee from Rome; many however, were incited to join their standard, not only by love of liberty, but hopes of plunder.

Origin: L. Excitare; ex out _ citare to move rapidly, to rouse: cf. OF. Esciter, exciter, f. Exciter. See Cite.

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Re: Resonance transfer

... fluorochrome that has an excitation energy matching the emission energy of the first fluorochrome; in this case, let's say the second fluorochrome excites with green light and emits with red. Finally, the remaining excitation energy is emitted by the second fluorochrome as red light. This energy ...

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by jonmoulton
Fri Jun 07, 2013 3:20 pm
Forum: General Discussion
Topic: Resonance transfer
Replies: 1
Views: 2053

Why does chlorophyll always fluoresce in red?

... blue light. The relatively weak red light causes chlorophyll's electron to jump one "energy level." Since blue light has more energy, it excites the chlorophyll's electrons even more: They jump two levels. (Ultraviolet has even more energy.) However, it's very difficult for the electron ...

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by lovie9
Wed Jul 13, 2011 8:57 am
Forum: Botany Discussion
Topic: Why does chlorophyll always fluoresce in red?
Replies: 6
Views: 14775

An interesting essay I need help with

... an antedote. In your explanation, discuss in detail the mechanism of excitation-contraction coupling. Tell your dream date how a nerve normally excites a muscle, and be sure to include how an electrical impulse is able to travel so quickly along a nerve to a muscle. Next, explain and draw the ...

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by kimmay818
Fri Oct 08, 2010 5:04 am
Forum: Human Biology
Topic: An interesting essay I need help with
Replies: 0
Views: 4087

Nerve impulses and travel

... the inner ear... they hit the inner ear bones(i forgot the names of the bones) and then hit the cochlea... the liquid in the cochlea vibrates and excites the nerve endings.. then a nerve impulse is generated and travels to the brain area related to sound(forgot the name of that region too)... ...

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by Blueberrysplash
Sat Jan 09, 2010 6:08 am
Forum: Human Biology
Topic: Nerve impulses and travel
Replies: 3
Views: 3588

Re: ATP hydrolysis releases energy, but what kind of energy?

... is that the hydrolysis of ATP results in transfer of an exciton to another reaction. What that means is that the energy released by the hydrolysis excites an electron to a higher energy level (I can't tell you which electron, but the exciton energy can be transferred atom to atom if the energy ...

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by jonmoulton
Thu May 21, 2009 7:12 pm
Forum: Molecular Biology
Topic: ATP hydrolysis releases energy, but what kind of energy?
Replies: 5
Views: 17544
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