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a cell
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∙ 10y ago
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Why do you have to have oxygen?
Everything that your body does, from the beating of your heart to the thoughts in your brain, depends upon a series of chemical reactions. The basic reaction which produces the energy needed to drive all the other reactions is the reaction of sugar and oxygen. Without that, everything stops.
How do you convert nuclear energy into chemical energy?
I don't know of any way to do this. Nuclear energy simply provides heat, so could conceivably be used to drive chemical reactions, but I don't think this has ever been done.
What is different between exothermic and endothermic reactions?
If energy is released as a result of a process, an exothermic change has taken place. If a constant input of energy is required to drive a physical or chemical change, the change is described as endothermic.
What causes chemicals to react with other chemicals?
By substances, I assume you mean chemical reactions. Chemical reactions occur because the products of the reaction have less energy than the reactants (drive toward less energy). These reactions release energy into the environment, like the burning of a match. Chemical reactions also occur because the products are more random (less ordered) than the reactant (drive toward greater entropy).
How can you make a chemical reaction go faster?
usually adding a catalyst will help to speed up the reaction so look up what kind of catalyst will speed up your reaction. you can also raise the temperature or increase the amount of the reactants Lowering the activation energy, adding a catalyst and shaking the reactants can help make a chemical reaction go faster.
What is the usual form of chemical energy that will drive metabolic reactions?
ATP!
Does ATP provide energy to drive energy absorbing chemical reactions?
Yes.
What is a chemistry reactions?
Chemical reactions are different molecules reacting with each other to form one or more products. Chemical reactions are done in everyday life from your breathing to digesting food to combusting gasoline to drive.
How is energy made available by chemical reactions and describe what happens to usable energy?
When a chemical reaction breaks a bond there is a release of the energy that was used to form the bond. This usable energy drives the motion of the cell, usually in the mitochondria of a cell.
In the Miller-Urey experiment what was used as energy source to drive chemical reactions?
Electrical discharge
Which two biomolecules provide most of the energy used to drive chemical reactions in cells?
carbohydrates and lipids
What allows cells to produce energy through aerobic metabolism?
The chemical reactions of metabolism are organized into metabolic pathways, in which one chemical is transformed through a series of steps into another chemical, by a sequence of enzymes. Enzymes are crucial to metabolism because they allow organisms to drive desirable reactions that require energy and will not occur by themselves, by coupling them to spontaneous reactions that release energy.
What two forms of energy does the horse have as it jumps over the pole?
Kinetic, because it's moving. Chemical, because of the chemical reactions which drive it. Gravitational potential energy as well . . .
Are organelles found in plant cells. They absorb energy from sunlight and use that energy to drive chemical reactions that produce sugars and oxygen.?
Chloroplasts
Are organelles found in plant cells They absorb energy from sunlight and use that energy to drive chemical reactions that produce sugars and oxygen?
Chloroplasts
What organelles are found in plant cells that absorb energy from sunlight and use that energy to drive chemical reactions that produce sugars and oxygen?
Chlorophyll
Why is water split during the light reactions?
The water splitting step in photosynthesis is critical as a source of hydrogen ions (protons). These provide essential chemical energy to drive later chemical reactions.
