What is meant by the term activation energy?
Q: While walking to biochemistry class with a friend, you see the following graffiti spray painted on…
A: Gibb's free energy is the measurement of how much work has been left by a reaction in order to…
Q: How does the architecture of the active site affect catalysis?
A: The proteinaceous molecules which are used to increase the catalytic activity of a reaction in the…
Q: Although ATP supplies energy to an endergonic reaction, why is it not considered a fuel?
A: Adenosine triphosphate (ATP) is defined as a cell’s energy currency. It is a molecule that stores as…
Q: How does an enzyme lower a reaction’s activation energy?
A: Enzyme is a biological molecule that acts as catalyst in the biochemical reaction and it increases…
Q: An enzyme lowers the activation energy required for a chemical reaction.True or false?
A: Enzymes are proteins that act as biological catalysts. The enzymes accelerate the biochemical…
Q: Is there a difference between the initial and the final energy levels in catalyzed and non-catalyzed…
A: Catalyzed reactions are usually used to accelerate the rate of a chemical reaction by the action of…
Q: process of lowering the activation energy of a chemical reaction is called?
A: Activation energy is the energy that should be provided to a chemical system so as to carry out the…
Q: Why does metabolism not grind to a halt when an endergonic reaction occurs within a pathway?
A: The biological process that involves the conversion of absorbed food nutrients to energy by the…
Q: Describe the effect of catalysis on activation energy.
A: Chemical reaction is a process that involves the rearrangement of ionic or molecular structure of a…
Q: What are oxidation and catabolic reactions?
A: Oxidation reactions are those reactions in which the electrons are given away. Oxidation is simply…
Q: Of the three thermodynamic quantities, enthalpy, free energy, and entropy, which provides the most…
A: A spontaneous reaction is a reaction that favors the formation of products at the conditions under…
Q: Decarboxylases can catalyze which type of reaction?
A: Enzymes are molecules that catalyze biochemical reactions occurring in living organisms. Most…
Q: In terms of potential and kinetic energy where does the energy comes from that allows an enzyme to…
A: Biochemical reactions are the reactions that take place within the cells in all living organisms.…
Q: Enzymes are able to reduce the activation energy barrier in a number of ways. List at least three…
A: During a chemical reaction, substrates are converted into products. There is an intermediate state…
Q: What are the Determinants of Reaction Rates?
A: Study of chemical reactions is known as reaction kinetics. Chemical reaction refers to the reaction…
Q: Under what conditions might a reaction be endothermic but exergonic? Explain.
A: The exothermic reaction is a process, in which energy is released, whereas the endergonic process…
Q: What is the difference between anabolism and catabolism?
A: Anabolism and catabolism are the two important sets of reactions of metabolic processes. Anabolism…
Q: What does it mean when we say that two reactions are coupled?
A: The two reactions are coupled means -the energy provided by an exergonic reaction is either released…
Q: The hydrolysis of ATP to yield AMP and PPi yields_____________ kJ/mol
A: ATP is considered an energy caring molecule that available in the living cell. ATP is made of three…
Q: Why does the activation energy of a reaction not appear in the final Δ G of the reaction?
A: The activation energy ΔG‡ is the energy difference that exists between the reactants and the…
Q: How does free energy change during spontaneous reactions? How does free energy change during…
A: A spontaneous reaction is a reaction that favours the formation of products at the conditions under…
Q: What is reaction time, why do we measure it? How is it calculated?
A: Chemical kinetics is a branch of chemistry which deals with reaction rates and extent to which a…
Q: What are the reactive oxygen species and why are they especially dangerous to cells?
A: Our body produces a large number of reactive oxygen (ROS) species which are responsible for the…
Q: what is activation energy ?
A: Activation energy is used in physics and chemistry. It is a energy which in smallest amount of…
Q: Enzymes lower the activation energy, but where does the energy to lower the activation energy come…
A: An enzyme accelerates the rate of a chemical reaction several times as compared to the uncatalyzed…
Q: when endergonic reaction is driven by splitting the ATP molecules, such that both these reactions…
A: An endergonic reaction is a chemical reaction in which energy is absorbed and the change in free…
Q: Why is the process of activation a useful strategy in metabolism?
A: Metabolism is the process, which involves the processing of the nutrients in order to acquire energy…
Q: Metabolic pathways frequently contain reactions with positive standard free-energy values, yet the…
A: The metabolic pathway is divided into the catabolic pathway (transform fuel into energy) and…
Q: Reactions that are energetically unfavorable can proceed on their own..
A: Energetically unfavorable reactions are the ones that are paid for by linked, energetically…
Q: How do enzymes reduce the amount of activation energy needed to make a chemical reaction go?
A: the activation energy for the exergonic reactions without a catalysis enzyme is much higher opposed…
Q: Why do some reactions in metabolic pathways occur, even though the change in standard free energy is…
A: Metabolic pathways are defined as the set of chemical reactions occurring in the body. Metabolic…
Q: What is the activation energy for a reaction? Why is activation energy necessary?
A: The enzyme is considered as the catalytic protein, which helps in the catalysis of the chemical…
Q: What energy requirements must be met in order for a reaction to be favorable?
A: The rate law or rate equation for a chemical reaction is an equation that links the initial or…
Q: What does "energetically expensive" mean?
A: While this is a usually most common sense while been giving that definition of energy rather than…
Q: What is the most common form of kinetic energy that is released from chemical energy in chemical…
A: Kinetic energy is the energy which is released in the form of thermal energy from the chemical…
Q: What general kind of chemical reaction does ATP participate in?
A: ATP is the primary carrier of energy for the cells. ATP is also called the energy currency of the…
Q: What ways do enzymatic catalysts increase the rates of reactions?
A: The substance that increases the pace of the chemical reaction without undergoing any change to…
Q: Name 3 nonrenewable sources of energy. In your own words, please discuss at least 3 pros and 3 cons…
A: Non-renewable energy comes from sources that will run out or won't be renewed for thousands or even…
Q: what is the importance of the first law of thermodynamics in biological systems, especially living…
A: The first law of thermodynamics, also known as the law of conservation of energy, is modified for…
Q: Why are most spontaneous reactions exothermic?
A: A spontaneous process is the time-evolution of a system in which it releases free energy and it…
Q: What are the three principal means of controlling metabolic reactions?
A: The metabolic reaction is used to regulate the metabolic pathways which include anabolic and…
Q: How can phosphorylation drive an endergonic reaction?
A: Phosphorylation is the addition of a phosphate group to a substrate. An endergonic reaction requires…
Q: Catalysis involves overcoming the activation energy barrier of a reaction. What are three ways by…
A: The proteins that are involved in speeding up the chemical reactions without getting used up in the…
What is meant by the term activation energy?
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- Is there a difference between the initial and the final energy levels in catalyzed and non-catalyzed reactions?What is the mechanism of enzyme catalysis, and how does it differ from other types of catalysis?Does an enzyme-mediated reaction need the same, more, or less activation energy than the same reaction occurring without the presence of the enzyme? Explain why.