- What is the monomer of Proteins and what holds them together in a polymer
- -What are the building blocks of carbohydrates?-What functional groups make up monosaccharides?-How can monosaccharides be linked together and what do they form?
- 1. This enzyme is known to have a PROSTHETIC group coenzyme:a. glutaminaseb. alanine aminotransferasec. glutamine synthetased. glutamate dehydrogenase
- 1. The carbon skeleton of this amino acid cannot be converted to glucose:a. glutamateb. alaninec. aspartated. leucine
- 1. Which amino acid is glucogenic & ketogenic?a. alanineb. leucinec. glutamated. tyrosine
- 1. Which plant enzyme is particularly important in assimilating NH4+ ions generated by symbiotic bacteria?a. ureaseb. nitrogenasec. glutamine synthetased. glutaminase
- 1. Which of these metabolites has the SMALLEST size?a. aspartateb. ureac. ATPd. Argininosuccinate
- 1. Which of these molecules is NOT a precursor of the carbon-skeleton of PROTEIN amino acids?a. oxaloacetateb. ribulose 5-phosphatec. 3-phosphoglycerated. Pyruvate
- 1. Which of these molecules is not charged at physiological pH? ??????a. Arginase (enzyme of urea cycle)b. citrulline (metabolite of urea cycle)c. alanine (metabolite of glucose-alanine cycle) (transporter for Nitrogen)d. ureae. ornithine (enzyme in urea cycle)
- 1. Which molecule is a precursor for the structural backbone of purines & pyrimidines?a. glycineb. aspartatec. folated. CO2
- 1. The nitrogen from this molecule is not converted to urea:a. glutamateb. cytosinec. guanined. uracil
- 1. Which amino acid is not essential?a. tyrosineb. threoninec. leucined. histidine
- 1. This metabolite does not appear to participate in regulating the urea cycle:a. glutamateb. N-acetylglutamatec. arginined. acetyl-CoAe. glutamine
- 1. Which of these amino acids is a PRECURSOR of niacin, serotonin & melatonin?a. tyrosineb. tryptophanc. phenylalanined. cysteine
- 1. The urea cycle takes place in the:a. small intestineb. pancreasc. liverd. stomach
- 1. Which amino acid CANNOT be converted to ketone bodies?a. asparagineb. leucinec. tyrosined. tryptophan
- 1. Which amino acid contributes about two thirds of the structural components of pyrimidines?a. glycineb. glutamatec. glutamined. aspartate
- 1. Which of these is a liver enzyme?a. nitrogenaseb. lactose synthasec. dihydrobiopterin reductased. pyruvate decarboxylase
- 1. Which metabolite is the PRECURSOR for the synthesis of SERINE?a. 3-phosphoglycerateb. pyruvatec. phosphoenolpyruvated. oxaloacetate
- 1. This molecule is not charged at physiological pH:a. adenosineb. leucinec. GMPd. Arginase