1. Tco 1) which of the following statements about hydrogen bonds is FALSE? (Poin
ID: 514311 • Letter: 1
Question
1. Tco 1) which of the following statements about hydrogen bonds is FALSE? (Points 4) O Hydrogen bonds create molecules. drogen bonds make biological molecules more stable. Hydrogen bonds are weak interactions. In DNA, hydrogen bonds between nitrogen bonds make the structure more stable. 2. (Tco 2) The following describes the quaternary structure of a protein. (Points 4) O Quaternary structures have only the alfa helixes. 0 Quaternary structures are made due to hydrogen bonds. Quaternary structures are made of multiple polypeptides bound to each other using noncovalent interactions. Quaternary structures are rarely observed in nature. 3. (TCO 2) The following describes the primary structure of a protein. (Points: 4) Protein's primary structure is the functional form of the protein. Protein's primary structure is known as polypeptide, which is a chain of amino acids. In its primary structure, protein is organized into domains. e Protein's primary structure is known as globular protein. 4. (Tco 3) which of the following statements about an enzyme is TRUE? (Points 4) Enzymes decrease the speed of a chemical reaction. Enzymes are not used up in a chemical reaction, Enzymes alter the thermodymamics of reaction. Enzyme kinetics is the 3rd order rate reaction Enzymes increase the speed of a chemical reaction. Enzymes are not used up in a chemical reaction. Formation of transition reduces product formation. of ofExplanation / Answer
1. Answer is 3. Hydrogen bonds are not weak bonds. they are same as covalent bonds.
2. Answer is 3.
3. Answer is 2.
4. Answer is 2. enzymes are used up in chemical reaaction. they remain intact.
5. Answer is 3.
6. Answer is 2.
7. Answer is 2.
8. Answer is 4.
9. Answer is 4.
10. Answer is 4.
11. Answer is 1.
12. Answer is 4.
13. Answer is 2.
14. Answer is Stearic acid has the following molecular formula: C18H36O2. Fatty acids are cut into 2 carbon units to form acetyl-CoA. In the process of forming the acetyl-CoA from a fatty acid, a molecule of FADH2 and 1 molecule of NADH are formed.
The acetyl-CoA just formed then goes through the Krebs cycle, and it directly produces 1ATP, in addition to producing in addition to producing 3 more NADH and 1 more FADH2.
So to tally up so far, for every 2 carbons of your fatty acid you produce (kept in original production order):
1 FADH2
1 NADH
and 1 acetyl-CoA. This acetyl-CoA goes on to make
3 NADH
1 FADH2
1 ATP (directly makes it).
Now to tally the ATP made indirectly from all the FADH2's and NADH's,
each FADH2 gives you 2 ATP
Each NADH gives you 3 ATP.
So from our list above, for every 2 carbons in your fatty acid you get the following number of ATPs:
2 + 3 + (3*3) + 2 + 1(the directly made ATP) = 17 ATP for every 2 carbons.
Since you have a total of 18 carbons in stearic acid, this process takes place 18/2 = 9 times.
So mulitply the number of ATP produced for every 2 carbons times 9, so
17 * 9 = 153 molecules of ATP produced per 1 molecule of stearic acid.
Thats a lot of energy from one molecule.
15. Answer is 3.
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