A. Please provide correct solution. Thank you. Acid rain is a serious environmen
ID: 889458 • Letter: A
Question
A. Please provide correct solution. Thank you. Acid rain is a serious environmental problem. A sample of rainwater collected in the Sierra Mountains had and H+ concentration of 0.1 mmol/L. The pH of this sample was 0 1 3 4 100 Rank the elements carbon (C), hydrogen (H), oxygen (O), and phosphorus (P) in decreasing order number of covalent bonds they usually form. Which of the following functional groups contains the most oxidized carbon? Polypeptides have a(n) and a(n) end. The shape of a folded protein is often determined by disulfide bridges the sequence of its amino acids whether the peptide bonds have a or beta linkages the number of peptide bonds the ammo-acid side-chain-pairing rules A molecule with the formula is a hydrocarbon lipid protein carbohydrate nucleic acid You look at the label on a container of shortening and see the words "hydrogenated vegetable oil." What is the result of the hydrogenation process? The oil now has a lower melting point The oil is now solid at room temperature There are more "kinks" in the fatty acid chains The oil is now a derivative carbohydrate The fatty acid is now a triglyceride If cells are grown in a medium containing radioactive 15N, which of these molecules will be labeled? fatty acids nucleic acids proteins cellulose both B) and C)Explanation / Answer
(1) answer D ) 4
[H+] =0.1 m mol / L = 0.1 x 10^-3 mol / L
= 10^-4 mol/L
pH = -log [H+] = -log (10^-4)
pH = 4
2) C) P > C > N> O > H
3) D) sulfuhydral
4 ) D ) N-terminus , C -terminus
5) E ) the amino acid side chain pairing rules
6) D) carbohydrate
7) B) the oil now solid at room temperature
8) E ) both B & C