What is the advantage of the cumulative enzymatic regulation of glutamine synthetase activity? Heritable information is packaged into discrete units called. A exterior due to the hydrophilic effect B interior due to the hydrophobic effect C exterior forming polar H-bonds with water D interior forming ionic bonds with other amino acids E exterior forming ionic-polar bonds with water Ans: B Section: 3. How a protein folds is determined by: A whether the environment is hydrophobic or hydrophilic. D allow only the free passage of water in and out of the cell. Allosteric control is increased and each activator or inhibitor can specifically contribute to regulation.
After hydrogen and oxygen, the next most common element in living systems is. C the pentose phosphate pathway. Insufficient amounts of this amino acid would not only inhibit protein synthesis, but also phostidylcholine and phostidylethanolamine. In , it is found in adults and plays an important role in survival. C the pH of the cytoplasm. One key Science textbook used by institutions of higher learning across the United States is Biochemistry by John L.
Ans: C Section: Introduction 23. This amino acid, in high levels, is correlated with the damage of cells lining the blood vessels. E All of the above. Why is the central carbon on an amino acid so important? Ans: Two systems are used. Steroid hormones come from what lipid? Eukaryotic cells contain organelles including a nucleus, while prokaryotic cells do not have such compartments. That's the power of Chegg. Ans: histadine, isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan, and valine Section: 3.
Ans: This is due to the order or cis-order when a double bond is introduced. C give eukaryote and prokaryote cells structural strength. C phosphorylation of glutamine by glutamine synthetase. Which amino acids have a side chain that includes a modified carboxyl group, carboxaminde? The primary product of inhibition only by X would be Y and not X. A mitochondria B cytoskeleton C cytoplasm D endoplasmic reticulum E nucleus Ans: A Section: 1.
D Transmethylation reactions are carried out by pyricoxal phosphate-dependent methyltransferases. Explain why fats are an efficient way to store biochemical energy. Describe the regulation of the enzyme threonine deaminase. C acetate Ans: A Section: 21. Chapter 3 Amino Acids Matching Questions Use the following to answer questions 1—10: Choose the correct answer from the list below.
E There are two trans-double bonds on this 12-carbon fatty acid. A melanin B epinephrine C ethylene D A and B. An example would be w-3 fatty acids. Ans: the terminal a-carboxyl group Section: 3. What is the chemical effect of rotenone on aerobic metabolism? List the essential amino acids. Biochemistry Guided Textbook Solutions from Chegg Chegg's step-by-step biochemistry guided textbook solutions will help you learn and understand how to solve biochemistry textbook problems and be better prepared for class.
This is referred to as acceptor control. Describe an experiment that could determine the difference. C the base pairs that are stacked on the inside of the double helix. A It is a component of biological membranes. Ans: Many of the biosynthetic intermediates can also be found in energy-forming pathways, and thus are critical to anabolic and catabolic paths. E None of the above. A There are 12 carbons in the chain with two double bonds.
Ans: Use the figures in your book and the p K a for each functional group to determine the ionization state for each amino acid. They are listed as A, B, C, D, and E. Ans: Structural, energy storage, modify proteins, cell—cell recognition. The polar head group of phospholipids is found at which carbon of glycerol? Below is a list of five tripeptides identified by their single letter codes. Describe which structural features are common to all phosphoglycerides and which ones vary. A glutamine B serine C tyrosine D All of the above. Students acquiring Biochemistry by John L.
Which amino acid side chains are capable of ionization? Secretory vesicles fuse with the plasma membrane to release material outside of the cell via. How does the glycerol 3-phosphate shuttle function? C The gamma subunit rotates with proton gradient formation inducing the binding-change mechanism. E None of the above. Below is a list of five tripeptides identified by their single letter codes. They are hydrophobic, which drives the hydrophobic interactions in the interior of a protein. E None of the above. What is the net charge of each the following amino acid: alanine, aspartic acid, and histidine when the pH is 1.
B provide a selectively permeable barrier with the aid of transport proteins. D the order of the amino acids found in the sequence. Provide a brief description of oxidative phosphorylation. The group is the functional group that makes an amino acid more reactive than nonpolar amino acids such as valine, alanine, and phenylalanine. What are the two systems for naming the positions of the double bonds? Ans: This is a nutritional state where there is an extremely low or poor protein intake in the diet. Assume that the mutations are not near each other in the primary sequence and have no impact on the other.