Bch 361 ch 1 - Study guides, Class notes & Summaries

BCH 361 CH 1 EXAM QUESTIONS WITH ALL CORRECT ANSWERS Which of the following does NOT have a double membrane? a) a mitochondrion b) a nucleus c) a prokaryote d) an endosome - Answer-d The process of transcription is carried out by the enzyme _____. - Answer-RNA Polymerase Human beings contain a higher percentage of _____ than is found in the Earth's crust. a) sodium b) oxygen c) carbon d) magnesium e) potassium - Answer-c - Answer- Many biomolecules exist as polymers....

What is the main difference between a prokaryotic cell and a eukaryotic cell? a) Prokaryotic cells do not contain membranes. b) Eukaryotic cells have a periplasmic space. c) Eukaryotic cells have membrane-enclosed compartments. d) Prokaryotic cells do not contain DNA. - Answer c

Which describes how cofactors and coenzymes affect the function of enzymes? A. increase or decrease catalytic function B. increase catalytic function C. do not impact catalytic function D. decrease catalytic function - Answer B

A solution of a weak acid contains 5 mM of the conjugate acid (HA), 2.5 mM of the conjugate base (A—), and 2.5 mM of H+. What is the Ka for this ionization? a) 5 mM b) 2.5 mM c) 1.25 mM d) 0.5 mM e) None of the above - Answer c

Determine how rxn rate (velocity) varies w/ substrate concentration. Rate increase, Rate decreases, Rate is unchanged A. additional substrate is added when substrate concentration is low B. substrate is added when enzymes is saturated w/ substrate C. additional substrate is added when substrate concentration is very high - Answer Rate increases: A Rate decreases: none Rate is unchanged: B, C

BCH 361 CH 1 Test Study Questions with 100% Correct Verified Solutions| Latest Update

Assume that in a cell the ratio listed is high. Which ratio(s) would lead to a decrease in the rate of entrance of acetyl CoA into the citric acid cycle? - Answer NADH/NAD+ Which of the following statements is TRUE regarding the mechanism of pyruvate dehydrogenase complex? - Answer A carbanion is formed on TPP following the release of H+

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