13) Myristate is a 14-carbon saturated fatty acid. The breakdown of myristate in

Question

13) Myristate is a 14-carbon saturated fatty acid. The breakdown of myristate in the beta-oxidation pathwa 3 would require acetyl-CoA rounds of the beta-oxidation pathway, resulting in_ molecules of B) 6:8 D)7:8 E 14:7 14) True or False?: Disulfide bonds are formed under oxidizing conditions A) True B) False 15) The connexin protein is a type of cellular adhesion protein localized to the plasma membranc of certain indicate hydrophobic regions, while negative values indicate hydrophilic regions) +4 +2 -2 50 100 150 200 Amino acid number If the first signal sequence within the connexin protein was an internal start transfer sequence, where would the C-terminus of the connexin protein be found when connexin is localized to the plasma membrane? A) ER lumern B) it's part of a membrane-spanning segment, and would therefore be localized within the lipid bilayer of the plasma membrane. C) cytoplasm D) Golgi lumen E) extracellular space 16) To ensure regulation, certain Calvin cycle enzymes, such as G3P dehydrogenase, are only activated when 16) they are Others, such as Rubisco, are activated by a B) oxidized; high pH. A) reduced;: high C) oxidized, low D) reduced: low 17) Why is the process of acrobic respiration exergonic? 17 A) Electrons are being moved from atoms that have a lower affinity for electrons (such as C) to atoms with a higher affinity for electrons (such as O). B) The electrons have a higher potential energy when associated with water and CO; than they do in organic compounds. C) The covalent bond in O, is unstable and easily broken by electrons from organic molecules D) The covalent bonds in organic molecules and molecular oxygen have more kinetic energy than the covalent bonds in water and carbon dioxide. E) None of the above. Aerobic respiration is endergonic

Explanation / Answer

Hi as per our regulation, the first 4 questions are solved.

13. The myristate is a 14 carbon fatty acid. In each round of beta-oxidation, 2 carbon is lost as acetyl CoA. So 6 round would result in oxidation of 12 carbon converted to acetyl CoA and 2 carbon in acetyl CoA formate. Hence the total of 6 rounds of beta-oxidation and 7 acetyl CoA molecules.

14. Disulfide bonds are formed between the two sulfur compounds. These are formed when the sulfur reduces the forms the stable bond. Hence the statement is false.

15. The C terminal end is the end in the negative region of the graph. When the values are negative, the sequence is hydrophilic. Hence, the would not lie inside the membrane, rather tries to project outward. So we might expect it to be towards the extracellular space, because the connexin is localised to plasma membrane.

16. The G3P dehydrogenase oxidized its target compouds and gets reduced. So to activate it, it must be oxidized. The Rubisco, fixes the atmospheric carbon and hecne is activated when Co2 is low. This happens when pH is alakaline. So, the high pH activates it.

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