C
ATP is usually used in processes and biochemical reactions in the body that would not occur spontaneously hence require energy to proceed them forward.
Explanation:
One such process is the transport of molecules against the concentration gradient. This is akin to climbing a hill. The channels that carry the molecule against concentration gradient require energy in carrying the molecule from the low concentration outside the cell to high concentration inside the cell. This is called active transport. Facilitated diffusion use membrane channels too, but no ATP energy is consumed because the molecules are moving down concentration gradient.
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For more on active transport check out;
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Hairs are mostly fibrous proteins and are composed of keratin, and also the main constituent of skin, nails, wool, woof, feathers etc.
Keratin is the essential fibrous protein which has a structural and protective functions in the epithelium.
<span>Two types of macromolecules: nucleic acid and protein.
Chromosomes are how the DNA is stored so they primarily contain nucleic acids. In addition to properly organize and condense the DNA, proteins are required. These include histones and other proteins.</span>
Answer:
A. DNA is transcribed into RNA, which is translated into protein
Explanation:
You have to remember that a scientific hypothesis is a question about whether or not something will happen the way you think it will.