BIO 111 Chapter 6 – 2025/2026 | 20 Questions with Answers | Enzymes, Energy, Metabolism

This exam-focused study guide contains 20 multiple-choice and true/false questions with correct answers from Chapter 6 of BIO 111 – General Biology I, specifically tailored for the 2025/2026 academic year at Northern Virginia Community College. The content provides targeted review of core biochemical and metabolic concepts such as activation energy, enzymatic function, thermodynamics, reaction types (exergonic, endergonic), competitive inhibition, and metabolic pathways. Students will find detailed coverage of molecular energy carriers like NAD⁺, mechanisms of enzyme action including temperature sensitivity and denaturation, protein degradation by exonucleases, and the role of RNase P. Conceptual clarity is reinforced with applied biological scenarios, including the inhibition of acetylcholinesterase by nerve agents. This document is structured to help biology students master fundamental processes for exam success. This document is best suited for: – Students enrolled in BIO 111 or introductory biology courses – Pre-nursing, pre-med, or allied health majors studying metabolism and enzymology – Learners preparing for quizzes, midterms, or finals covering cellular processes – Community college students following a biology curriculum with lab components Keywords: BIO 111, enzymes, metabolism, activation energy, thermodynamics, exergonic reaction, prosthetic groups, substrate, competitive inhibition, NAD+, kinetic energy, RNase P, enzyme denaturation, metabolic pathway, general biology quiz