Enzymes speed up a biological reactions by lowering the activation energy.
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Answer:
Deoxyribonucleic acid (DNA) is a nucleic acid that contains the genetic instructions for the development and function of living things. All known cellular life and some viruses contain DNA. The main role of DNA in the cell is the long-term storage of information.
Explanation:
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Answer:
Ion
Explanation:
An Ion is exactly as stated it bears either a positive or negative charge.