Biology
5th Edition
ISBN: 9781260487947
Author: BROOKER
Publisher: MCG
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Chapter 6, Problem 3CQ
Summary Introduction
To determine: The reason that recycling of amino acids and
Introduction: Recycling of amino acids and nucleotides is a very important process. This process of recycling allows the cell to recreate or synthesize the essential proteins and genetic material of the cell.
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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.
indicate whether the following reactions are endergonic, requiring energy input, or exergonic, releasing energy:
endergonic, exergonic
Definition
Word
Photons from the Sun reach planet Earth
Plants use sun energy to convert carbon dioxide into sugars
Living organisms break down sugars into carbon dioxide and water
Living organisms make ATP from ADP and phosphate
Living organisms break down ATP into ADP and phosphate
Living organisms use ATP to power metabolic function and other things such as muscle movement
Give typing answer with explanation and conclusion
Chapter 6 Solutions
Biology
Ch. 6.1 - Which do you think has more entropy, a NaCl...Ch. 6.1 - Prob. 2CCCh. 6.2 - Prob. 1CCCh. 6.2 - Prob. 2CCCh. 6.2 - Prob. 1CSCh. 6.2 - Prob. 1EQCh. 6.2 - Prob. 2EQCh. 6.2 - Prob. 3EQCh. 6.3 - Prob. 1CSCh. 6.3 - Prob. 2CS
Ch. 6.4 - What are advantages of protein degradation?Ch. 6 - Reactions that release free energy are a....Ch. 6 - Enzymes speed up reactions by a. providing...Ch. 6 - Prob. 3TYCh. 6 - Researchers analyzed a cell extracta mixture of...Ch. 6 - In biological systems, ATP functions by a....Ch. 6 - In a chemical reaction, NADH is converted to NAD+...Ch. 6 - Prob. 7TYCh. 6 - Prob. 8TYCh. 6 - Prob. 9TYCh. 6 - Autophagy provides a way for cells to a. degrade...Ch. 6 - Prob. 1CQCh. 6 - Prob. 2CQCh. 6 - Prob. 3CQCh. 6 - Prob. 1COQCh. 6 - Prob. 2COQ
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- Set-up: A cell is able to extract energy from the molecule glucose after it breaks it's C-C and C-H bonds and replaces them with C=O and O-H bonds in CO2 and H20 in order to power unfavorable reactions. Questions: In a few brief sentences describe why cells can gain energy from this process. A successful answer should include the following: 1. How the action of breaking bonds relates to energy 2. How forming bonds relates to energy 3. Why some of these bonds store more energy to othersarrow_forwardWhich of the types of energy is NOT one a part of energy transformation chain during respiration and photosynthesis? mechanical energy- kinetic energy of moving objects nuclear energy - energy released during radioactive decay chemical energy - energy released when the products of a reaction have a lower free energy than the reactants potential energy stored in a gradient of concentrationarrow_forwardWhich of the following describe energy unavailable to do cellular work? Group of answer choices Gibbs Free Energy Entropy Enthalpy delta Garrow_forward
- The 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_forwardAn energy carrier, unlike an energy molecule, is rather difficult to produce due to their odd structures. is very unstable and thus do not exist for long outside of the cell. runs out of energy too quickly to be useful. just moves high-energy electrons to another source.arrow_forwardWhich 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.arrow_forward
- Define energy and give examples of how energy is transformed/transferred.arrow_forwardplease see attachedarrow_forwardChemical bond energy: Is the energy used by photosynthesis for the fixation of carbon Is generated as usable energy for the cell Is generated by processes in the chloroplast and mitochondria All of the abovearrow_forward
- Apply your understanding of how living organisms use energy to argue in favor of why it is either beneficial or detrimental for cells to use ATP rather than directly using the energy stored in the bonds of carbohydrates to power cellular reactions?arrow_forwardThe process of cellular respiration: is when the bonds of a glucose molecule are broken and energy is released. is done by both plants and animals. All of the choices are true; none are false. O is a process which produces a net release of energy.arrow_forwardConcept background on biomolecules and transformation of energy within organisms on these following ingredients:- fresh flat mustard seed- sea salt- water- corn- ricearrow_forward
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