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all they need is energy
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∙ 14y ago
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Do chemical reactions need heat to start them off?
Endothermic reactions need heat.
Which statement will be describe how enzymes effect chemical reactions?
Enzymes lower the activation energy needed to start a chemical reaction.
Role of chlorophyll in photosynthesis?
Clorophyll collects the light energy that is used to fuel and start the chemical reactions for photosynthesis.
How is energy involved in a chemical reaction?
Activation energy is needed to start a chemical reaction. This energy is used to join the reactants together or break them apart. If a reaction is exothermic then it gives energy out. If it is endo thermic then the reaction takes energy in.
What is the act of enzymes?
Enzymes help speed up chemical reactions by lowering the required activation energy to start a reaction.
Do chemical reactions start with a reactant?
yes
What do enzymes do in the human body?
Enzyme: [n.] Any of numerous proteins or conjugated proteins produced by living organisms and functioning as biochemical catalysts.Enzymes allow chemical reactions to occur at normal body temperature by lowering the activation energy needed to start a reaction.
Do all chemical reactions need heat to start them?
no
What energy is needed to start a chemical reaction?
It varies with the differences in chemical reactions
What energy needs to to start a chemical reaction?
It varies with the differences in chemical reactions
Do chemical reactions need heat to start them off?
Endothermic reactions need heat.
Do all chemical reactions need heat to start them off?
no
Where did all living organisms start?
A single cell.
How do emzymes speed up chemical reactions?
Enzymes lower the activation energy needed to start a chemical reaction.
How is activation energy relates to the start of chemical reactions?
A chemical reaction begin only if the activation energy has a specific value.
Which statement will be describe how enzymes effect chemical reactions?
Enzymes lower the activation energy needed to start a chemical reaction.
What is the term for the amount of energy that needs to be added for chemical reactions to start?
activation energy
