Questions and Answers
Which of the following amino acids is/are nonpolar?
What is the distinguishable group or moiety found in arginine’s R group?
Which test detects the presence of aromatic amino acids?
Which stabilizes the helical or sheet-like shape of a peptide?
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Process of converting a peptide chain into free amino acids
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What is the protein portion of an enzyme called?
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Vitamin B3 deficiency is known as?
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What is the primary EC number of the enzyme serum glutamate pyruvate transaminase?
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The enzyme that combines acetyl-CoA and carbon dioxide into a longer malonyl-CoA should have an EC number of?
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The higher the Km of a substrate, the ________ is its affinity to an enzyme
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Which of the following is true about glycolysis?
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Enzymes which catalyze irreversible reactions in glycolysis are:
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Which of the following is not true?
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FADH2 is formed in which of the following reactions?
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Which of the following does NOT yield energy in the citric acid cycle?
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Which of the following is true about the electron transport chain?
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Cyanide and carbon monoxide interfere with what complex, given it is where oxygen lies?
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What is the energy yield from anaerobic respiration of one molecule of glucose?
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Which of the enzymes involve the reversal of the process done by hexokinase in glycolysis?
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Which of the following enzymes is responsible for breakdown of α1,4 bonds in glycogen?
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What GSD # involves deficiency of glycogen synthase?
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What is the likely name of process 1?
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In process 2, what enzyme(s) is/are involved?
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What is the purpose of the non-oxidative phase of the pentose phosphate pathway?
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Which of the following statements is not true about the oxidative phase?
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Which of the following is FALSE about beta-oxidation?
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Study Notes
Biochemistry Study Notes
Amino Acid Biochemistry
- The protein portion of an enzyme is called apoenzyme (Q6)
- Arginine's R group has a guanidine group (Q2)
- The correct primary EC number of the enzyme serum glutamate pyruvate transaminase is 2 (Q9)
Carbohydrate Biochemistry
- Glucose oxidation at the first carbon yields gluconic acid (Q17)
- Sucrose is a disaccharide consisting of glucose and fructose (Q14)
- Specific test for galactose is the mucic acid test (Q18)
Lipid Biochemistry
- Saturated fatty acid with 18 C is stearic acid (Q20)
- Lecithin, a major component of cell membranes, is phosphatidylcholine (Q23)
- Esters of long-chain fatty acids with long-chain monohydric alcohols are waxes (Q24)
Nucleic Acid Biochemistry
- The composition of a nucleoside is base + sugar (Q28)
- The direction of genetic information flow during gene expression is DNA → RNA → Protein (Q32)
- In prokaryotes, the ribosomal binding site on the mRNA is called the Shine-Dalgarno sequence (Q42)
Metabolic Pathways
- Glycolysis is a catabolic process that results in the production of ATP and NADH (Q47)
- The citric acid cycle (Krebs cycle) is a series of reactions that produce ATP, NADH, and FADH2 (Q51)
- The electron transport chain is a series of protein complexes that generate ATP from the energy released from NADH and FADH2 (Q52)
Other Topics
- Isoleucine has a pI of 6.02 (Q1)
- Vitamins and their functions:
- Vitamin B7 is needed by the enzyme acetyl CoA carboxylase, which catalyzes the carboxylation of acetyl CoA to malonyl CoA (Q7)
- Vitamin K is necessary for the synthesis of certain clotting factors (Q25)### Metabolic Disorders and Enzymes
- Phenylketonuria is related to phenylalanine.
- Albinism is related to tryptophan.
- MSUD (Maple Syrup Urine Disease) is related to isoleucine, leucine, and alanine.
Cellular Pathways and Enzymes
- The urea cycle does not occur inside the mitochondrion, nor within the mitochondrial membranes.
- The citric acid cycle, beta-oxidation, and oxidative phosphorylation occur inside the mitochondrion, or within the mitochondrial membranes.
- Glycolysis does not occur inside the mitochondrion, nor within the mitochondrial membranes.
- Pyruvate carboxylase catalyzes the reaction: Pyruvate → OAA.
- Pyruvate dehydrogenase complex is not responsible for the reaction: Pyruvate → OAA.
- A deficiency in Pyruvate dehydrogenase can cause lactic acidosis due to pyruvate being shifted towards anaerobic respiration instead of being utilized for the Krebs' cycle.
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Description
This quiz covers biochemistry topics such as determining the pI of amino acids like isoleucine, glutamic acid, and lysine, as well as identifying nonpolar amino acids.
