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DENIUS [597]
3 years ago
13

Pick the group of elements with the most common characteristics

Biology
1 answer:
ExtremeBDS [4]3 years ago
3 0
D!  Copper (Cu), Gold (Au), and Silver (Ag) are the most similar.  These three are all transition metals, and are found in the same group, 11 or 1B.  Due to the fact that these guys are all in the same group they're going to have the same number of valance electrons and similar properties.  
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Robert Hooke contribute to the cell theory because he was the first person to use the term “cell.”

<h3>What is contribution of Robert Hooke to cell theory?</h3>

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Protein phosphatase 1 (PP1) is a phosphatase enzyme known to remove phosphate groups from serine/threonine amino acid residues. PP1 plays diverse biological roles including, among others, cell progression, control of glucose metabolism, muscle contraction, etc. In glucose metabolism, PP1 regulates diverse glycogen metabolizing enzymes (e.g., glycogen synthase, glycogen phosphorylase, etc). In the liver, glycogen phosphorylase catalyzes the rate-limiting step in glycogenolysis by releasing glucose-1-phosphate. Glycogen phosphorylase <em>a</em> is converted (and inactivated) into the <em>b</em> form by PP1, which catalyzes the hydrolysis of the phosphate bond between serine and the phosphoryl group. In the liver, glucose binds in order to inhibit glycogen phosphorylase <em>a</em>, thereby inducing the dissociation and activation of PP1 from glycogen phosphorylase <em>a</em>.  

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