Study guides, Class notes & Summaries

Zapanta Biochemistry Exam 3 Questions With Complete Solutions

ATP correct answers nucleotide, major energy currency Components: Ribose, 3 phosphates, Adenosine (base) Phospoanhydride bonds high energy at 2 terminal phosphates Phosphoester bond at first phosphate 3 phases of glycolysis correct answers 1. Energy investment 2. Cleavage 3. Energy liberation Location of glycolysis correct answers Cytoplasm Products of glycolysis correct answers 2 pyruvate, 2 ATP, 2 NADH Glycolysis step 1. correct answers glucose to glucose-6-phosphate by hexoki...

Define biochemistry correct answers The study of life from a chemical standpoint. Explain the importance of biochemistry in medicine, agriculture, industry and in the academe. correct answers Biochemistry is also a practical science because it creates powerful techniques, not only in medical biochemistry itself but it also motivate advances in other fields, such as genetics and genetic engineering, cell biology, physiology, immunology, pharmacology, pathology, toxicology, and microbiology, to...

Hydrophobic interactions make important energetic contributions to : a. binding of a hormone to its receptor protein b. enzyme-substrate interactions c. membrane structure d. three-dimensional folding of a polypeptide chain e. all of the above are true f. None of them correct answers E Which of the following is true about the properties of aqueous solutions? a. A pH change from 5.0 to 6.0 reflects an increase in the hydroxide ion concentration ([OH-]) of 20% b. A pH change from 6.0 to...

The Structure of Amino Acids correct answers Amino group, carboxyl group, and R group attached to alpha carbon What is the carbon attached to the amino group, carboxyl group, and R group? correct answers Alpha carbon What are the carbons after the alpha carbon? (in the correct order away from the alpha) correct answers Beta, gamma, delta What is the pI? correct answers Isoelectric point of the Amino Acid titration curve What is the point of the Amino Acid curve? correct answers To ta...

what are carbohydrates correct answers Carbon, Hydrogen, Oxygen, , supplies energy for the cell, forms plant structures, and short term energy storage, Sugars (fruits/vegetables) and starches (potato, pasta, bread) Carbohydrates produce energy classification of carbohydrates correct answers monosaccharides, disaccharides, polysaccharides examples of carbohydrates correct answers simple sugars (glucose), complex sugars (starch), sugar (fruits), starch (rice, pasta), what are differences ...

The starting materials necessary to synthesize sphingosine are: correct answers palmitoyl CoA and serine Which of the following is(are) major component(s) of low-density lipoproteins? correct answers A) phospholipid B) apoprotein B-100 C) cholesteryl ester D) All of the above <<<<<<< E) None of the above In a ganglioside, what links the oligosaccharide to the hydroxyl of the ceramide? correct answers Glucose The LDL receptors on the plasma membrane are localized...

Typical Van der Waals energies are about: correct answers 2-4 kJ/mol A possible drug to treat COVID-19 has been discovered and is known to be a weak acid. At the pH of blood (7.4) the concentrations of acid and conjugate base are 0.075 and 0.025 respectively. What is its pKa? correct answers 3.00 What is the [A-]/[HA] ratio whent he weak acid is in solution alone pH unit above its pKa? correct answers 10:1 What are the primary chemical components present in a phosphate buffer at pH 7.4?...

Glucose correct answers _____ is the principle carbohydrate in living systems. Mitochondria correct answers Fatty acid synthesis primarily takes place in the cellular location _____. Pyruvate correct answers The product of aerobic glycolysis is _____. Mitochondria correct answers _____ is where oxidative phosphorylation occurs. NAD+ correct answers The substance _____ must be regenerated for glycolysis to proceed. ATP correct answers This molecule is an inhibitor of phosphofructok...

enzyme concentration correct answers the more enzyme present, the faster substrate reacts pH correct answers enzymes have optimum pHs above and below which the rate decreases Pepsin is correct answers a proteolytic enzyme found in the Stomach Chymotrypsin is a correct answers proteolytic enzyme found in the intestine Temperature correct answers enzymes have an optimum temperature, above which they begin to denature An enzyme, tyrosinase, is key in the production of melanin (the mo...