Part A Drag the terms to their correct locations in these sentences.

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ATP

1. There are three main types of cellular work: chemical, transport, and movement. Most of this

work is powered by the transfer of a phosphate group from one molecule to another in a process

feedback inhibition

known as

endergonic

enzyme

phosphorylation

2. Through energy coupling, cells use

or energy-releasing, reactions to drive

or energy-requiring, reactions. The molecule

is the energy shuttle

between these two types of reactions.

exergonic

3. A specific

metabolism

speeds up each of a cell's chemical reactions.

4. Mechanisms such as

enable precise control over a cell's

-- all of

its chemical reactions.

Stars x and y are both bluish main sequence stars. star x has a higher absolute brightness than star y. how do the two stars compare? explain

Which type of wave can travel without a medium

People with normal vision cannot focus their eyes underwater if they aren't wearing a face mask or goggles and there is water in contact with their eyes. in a simplified model of the human eye, the aqueous and vitreous humors and the lens all have a refractive index of 1.40, and all the refraction occurs at the cornea, whose vertex is 2.60 cm from the retina. with the simplified model of the eye, what corrective lens (specified by focal length as measured in air) would be needed to enable a person underwater to focus an infinitely distant object? (be careful-the focal length of a lens underwater is not the same as in air! assume that the corrective lens has a refractive index of 1.62 and that the lens is used in eyeglasses, not goggles, so there is water on both sides of the lens. assume that the eyeglasses are 2.05cm in front of the eye.)