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mitochondria
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∙ 13y ago
Wiki User
∙ 10y agoEnzymes
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What substance in the blood controls the rate of respiration?
A substance in the blood that controls the rate of respiration is Carbon Dioxide. It stimulates the brain that controls the respiratory rate.
Why does Enzyme reaction rate decrease at 37 degrees?
Enzymes are catalysts for chemical reactions. All chemical reactions are affected by temperature. Higher temperatures make the reactions happen faster, and colder temperatures make them happen slower. At 37 degrees, just a little above freezing, many biological enzymes practically stop working.
What do enzymes do in the cell?
The enzymes in the cell act as catalysts for chemical reactions. They lower the activation energy of these reactions in order to speed up the reaction rate.
Whats the function of proteins?
There are structural and functional proteins present in cell. structural proteins such as myosin build up body. functional enzymes carry out biochemical reactions. Other proteins can be hormones, antibodies, cell surface molecules, ion channels, transporters, carriers etc.
What is the effect that enzymes have on certain chemical reactions in living things?
Enzymes lower the activation energy (or free energy of activation for the very scientific) of the chemical reactions they catalyse. The enzymes can make a reaction proceed much more quickly than it otherwise would by astronomical figures, e.g. 109 times! Enzymes don't affect the equilibrium position, but they do affect the rate.
What Determines the body's food intake requirements?
Thyroxine controls the rate of chemical reactions or metabolism in the body
What controls the rate of chemical reaction in human body?
In the human body enzymes control the rates of chemical reactions. Enzymes speed up reactions by lowering the activation energy, or the amount of energy required for the reaction to occur.
Do enzymes decrease the rate of chemical reactions?
No, they Increase the speed of chemical reactions
What is the rate of chemical reaction is?
The rate of chemical reactions is how long a chemical reaction takes to finish.
How particle collisions that affect the rate of chemical reactions?
When the number of particle collisions increase the rate of chemical reactions also increase.
What are the 5 factors that can affect the rate of chemical reactions?
5 factors that can affect the rate of chemical reactions are temperature, pressure, concentration, stirring, catalysts.
How the difference in the movement of atoms at two different temperatures affects the rate of most chemical reactions?
Generally at high temperature the rate of chemical reactions is greater.
What does it mean if enzymes are organic catalyst?
Enzymes are organic catalysts. A catalyst is a chemical that controls the rate of a reaction, but is itself not used up in the process. Reactions that are accelerated due to the presence of enzymes are known as enzyme-catalyzed reactions.
Substance that increases rate of chemical reactions?
catalyst
What is a device that controls the rate of nuclear fission reactions?
Control rods are used.
What is a special protein that effect the rate of chemical reactions?
An enzyme
How does temperature aff ect the rate of chemical changes?
An increase in temperature increases the rate of most, but not all, chemical reactions.
