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Chemical reactions that absorb energy will not occur without a source of energy true or false?
This is true. Energy is required to begin all reactions.
What type of chemical reaction cannot occurs spontaneously endothermic or exothermic?
An 'exothermic' reaction gives of energy, and an 'endothermic' reaction absorbs energy.
Why endothermic reactions cannot be spontaneous reactions?
Endothermic reactions require an input of energy to proceed, which means they do not occur spontaneously. Spontaneous reactions release energy to their surroundings, unlike endothermic reactions that absorb energy from the surroundings. Therefore, endothermic reactions cannot be spontaneous as they need an external energy source to drive the reaction forward.
What is the role of a propane bond in chemical reactions?
The role of a propane bond in chemical reactions is to provide a source of energy that can be released when the bond is broken. This energy can then be used to drive other chemical reactions or processes.
What do chemical reactions that absorb energy need to occur?
Chemical reactions that absorb energy need an input of energy in the form of heat, light, or electricity to overcome the activation energy barrier and initiate the reaction. This added energy allows the reactant molecules to surpass their energy threshold and transition into a higher-energy state, leading to the formation of products.
In cells what is the source of energy for an endergonic reaction?
In cells, the source of energy for an endergonic reaction is usually adenosine triphosphate (ATP). ATP provides the necessary energy molecule for the endergonic reactions to occur by transferring phosphate groups to molecules in order to drive the reaction forward.
What happens during an endergonic reaction?
An endergonic reaction is a chemical reaction in which the standard change in free energy is positive, and energy is absorbed. To view the source and read more about endergonic reactions go to: http://en.wikipedia.org/wiki/Endergonic_reaction
Does enzyme contains high sugar?
No. An enzyme is a chemical that speeds up chemical reactions without adding any energy to them. Sugar is an energy source that makes some chemical reactions happen. They are different things and work on different principles.
What type of chemical reactions will not occur without a source of energy?
The answer the question is probably looking for is "endothermic reactions", though that's not necessarily 100% accurate. Some exothermic reactions have very high activation energies and will not proceed in the absence of a catalyst without an initial source of energy (though, once started, the reaction itself may provide enough energy to keep it going). Also, technically, "endothermic" refers specifically to heat or thermal energy. For energy generally we should use the term "endergonic" instead, though that's a less common term.
Chemical reactions that absorb energy will not occur without a source of energy true or false?
This is true. Energy is required to begin all reactions.
Which of the following statements about the role of ATP in cell metabolism is true?
The energy from the hydrolysis of ATP may be directly coupled to endergonic processes by the transfer of the phosphate group to another molecule. A key feature in the way cells manage their energy resources to do this work is energy coupling, the use of an exergonic process to drive an endergonic one. ATP is responsible for mediating most energy coupling in cells, and in most cases it acts as the immediate source of energy that powers cellular work.
Which pathway has the greatest activation energy?
The pathway with the greatest activation energy is often one that involves breaking strong chemical bonds or complex rearrangements, such as in nuclear reactions or some enzyme-catalyzed processes. These reactions require more energy input to initiate the reaction compared to other pathways with lower activation energies.
Why is ATP a good source of energy for biological reactions?
ATP is a good source of energy for biological reactions because it can easily release and transfer energy when needed by breaking a phosphate bond, providing a quick and efficient source of energy for cellular processes.
Are chemical reactions that absorb energy will occur without a source of energy?
false
Are enzymes sugars?
No, enzymes are not sugars. Enzymes are proteins that act as catalysts in biological reactions, whereas sugars are simple carbohydrates. Enzymes facilitate chemical reactions in living organisms, while sugars primarily serve as a source of energy.
Which nuclear reactions is the source of the sums energy?
Nuclear fusion
What substance from the light-dependent reactions is a source of energy for the light-independent reactions of photosynthesis?
They are ATP and NADH. They are energy carrying molecules.
