Principles of Biology
2nd Edition
ISBN: 9781259875120
Author: Robert Brooker, Eric P. Widmaier Dr., Linda Graham Dr. Ph.D., Peter Stiling Dr. Ph.D.
Publisher: McGraw-Hill Education
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Question
Chapter 6.3, Problem 1TYK
Summary Introduction
Introduction:
The process of breaking down the complex molecules into small, simple molecules is described as catabolism. The main categories of organic molecules are proteins, lipids, carbohydrates, and
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Which of the following is false concerning ATP?
A
The first and second phosphate bonds contain a lot of energy used to power cellular functions.
It contains lots of potential energy.
Is made by bonding ADP with a phosphate during cellular respiration.
D) Requires the actions of enzymes.
Enzymes are catalysts that increase the rate of reactions by
pulling two substrates together.
lowering the energy of activation.
binding to a substrate and releasing protons.
binding to a substrate and producing energy.
Which of the following will occur if there is an increase in enzyme or substrate concentration?
interfere with the reaction.
increase the rate of reaction.
decrease the rate of reaction.
not change the rate of product produced
reduce the rate of product produced.
Chapter 6 Solutions
Principles of Biology
Ch. 6.1 - Which do you think has more entropy, an NaCl...Ch. 6.1 - Prob. 1TYKCh. 6.1 - Prob. 2TYKCh. 6.2 - Prob. 1CCCh. 6.2 - Prob. 2CCCh. 6.2 - Prob. 3CCCh. 6.2 - Prob. 1TYKCh. 6.2 - An inhibitor raises the Km for an enzyme but has...Ch. 6.3 - Prob. 1CCCh. 6.3 - Prob. 1TYK
Ch. 6.3 - Prob. 2TYKCh. 6.3 - Prob. 3TYKCh. 6.4 - Prob. 1CCCh. 6.4 - Prob. 1BCCh. 6.4 - Prob. 1TYKCh. 6.4 - Prob. 2TYKCh. 6.4 - Prob. 2CCCh. 6.5 - Prob. 1TYKCh. 6.6 - During the citric acid cycle, what happens to...Ch. 6.7 - Prob. 1CCCh. 6.7 - Prob. 2CCCh. 6.7 - Prob. 3CCCh. 6.7 - Prob. 1TYKCh. 6.7 - Prob. 2TYKCh. 6.7 - Prob. 3TYKCh. 6.8 - Prob. 1CCCh. 6.8 - Prob. 1TYKCh. 6 - According to the second law of thermodynamics....Ch. 6 - Reactions that release free energy are exergonic....Ch. 6 - Prob. 3TYCh. 6 - Prob. 4TYCh. 6 - Prob. 5TYCh. 6 - Prob. 6TYCh. 6 - Prob. 7TYCh. 6 - Prob. 8TYCh. 6 - Prob. 9TYCh. 6 - Prob. 10TYCh. 6 - Describe the mechanism and purpose of feedback...Ch. 6 - What causes the rotation of the y subunit of ATP...Ch. 6 - PRINCIPLES A principle of biology is that living...Ch. 6 - Discuss how life can maintain its order in spite...Ch. 6 - Prob. 2CBQ
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- Energy is stored long-term in the bonds of _____ and used short-term to perform work from a(n)_____molecule. a. ATP : glucose b. an anabolic molecule : catabolic molecule c. glucose: ATP d. a catabolic molecule : anabolic moleculearrow_forwardThe capacity to do work best defines: a metabolic pathway. entropy. kinetic or potential energy. a chemical equilibrium. thermodynamics.arrow_forwardMC: Which of the following are true of an enzyme? An enzyme is never needed for an exothermic reaction An enzyme works by minimizing the AG An enzyme is never consumed in a reaction An enzyme is not always a proteinarrow_forward
- What is the key activity of Panel II in the figure above? The enzyme is consumed as the products form. The substrate leaves the active site. The conversion of substrates to products occurs. The product leaves the enzyme. The product decomposes to the reactants.arrow_forwardWhich of the following is/are TRUE of an enzyme? Enzymes lower the release of free energy Enzymes are not consumed in a reaction Not all enzymes are proteins Enzymes only affect endergonic reactions Enzymes only affect exergonic reactionsarrow_forwardIn order to avoid wasting cell resources, feedback mechanisms to regulate enzyme activity are a feature of: Group of answer choices. Choose Allostery Kinetics Thermodynamics Metabolismarrow_forward
- Enzymes are key components in biological reactions. Which of the following statements about enzyme function in biological systems is FALSE? Enzymes are key components in biological reactions. Which of the following statements about enzyme function in biological systems is FALSE? Enzymes increase the rate of a reaction, but do not change the free energy of a reaction. Enzymes frequently work in metabolic pathways, such that the activity of one enzyme can affect the activity of a second enzyme in the pathway by altering the concentration of a substrate or product of the second enzyme. Enzymes will alter the equilibrium of a reaction such that the enzyme increases the exergonic reaction relative to the endergonic reaction. Even if the enzyme forms a bond with a substrate during a reaction, the enzyme returns to its original form at the end of the reaction.arrow_forwardThe energy in organic molecules is released in a series of steps rather than a single step because: the amount of energy released would be too much to capture in one reaction. more total energy is released in multiple steps than would be released in a single step. less total energy is released in multiple steps than would be released in a single step. it is not possible to release it in a single step. only a single electron can be moved at a time in a cellular reaction. Incorrectarrow_forwardWhich of the following is true for catabolic pathways? They are usually nonspontaneous. They consume energy. They do not depend on enzymes. They release energy.arrow_forward
- Nitrogen fixation is the reaction of: conversion of gaseous N2 into a biologically useful form of nitrogen (NH3). conversion of gaseous NH3 into a biologically useful form of nitrogen (N2). reduction of nitrogen to a peptide bond. fixing gaseous N2 into an unreactive form. electron transfer to ATP.arrow_forwardMatch each statement about a microorganism to its most appropriate metabolic type. A microorganism that gains energy from light A microorganism that uses inorganic chemicals as a source of energy A microorganism that requires CO₂ to get carbon A microorganism that uses organic chemicals as a source of carbon A microorganism that uses organic chemicals as a source of energy A microorganism that uses chemicals to gain energy [Choose ] [Choose ] Chemoorganotroph Chemotroph Phototroph Autotroph Heterotroph Chemolithotroph [Choose [Choose ] [Choose ]arrow_forwardWhich of the following statements are incorrect? Enzymes and inorganic catalysts speed up reactions. Enzymes and inorganic catalysts are non-specific. Enzymatic activity can be regulated. Enzymes undo allosteric change and inorganic catalysts cannot.arrow_forward
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