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-Enzymes-

QuestionAnswer
What are enzymes? proteins that catalyze chemical reactions.
How do enzymes work? By lowering the activation energy.
All of the work being done inside any cell is being done by: Enzymes.
What is Oxidation? the loss of an electron (or hydrogen).
What are Autotrophs? Organisms that synthesize their own nutrients; include some bacteria that are able to synthesize organic molecules from simpler inorganic compounds.
What are Heterotrophs? Organisms that obtain their nutrition by breaking down organic molecules in foods; include animals and fungi.
What is Anabolism? the total series of chemical reactions involved in synthesis of organic compounds.
What is Catabolism? the series of chemical reactions that breakdown larger molecules.
What is Homeostasis? The ability to maintain a relatively constant internal environment.
What is Energy Activation? The minimum amount of energy required for a given reaction to occur; varies from reaction to reaction.
What are Co-enzymes? Chemicals required by a number of enzymes for proper functioning; also known as enzyme co-factors.
What is Reduction? The gain of an electron or a hydrogen atom. The gain of electrons or hydrogen's in a chemical reaction.
What is Glycolysis? The universal cellular metabolic process in the cell's cytoplasm where 6-carbon glucose is split into two 3-carbon pyruvate molecules, and some ATP and NADH are produced.
What is the substrate? The biological molecule that the enzyme will attack.
The enzyme grabs onto the substrate with a special area called: The active site
What is the active site? A specially shaped area of the enzyme that fits around the substrate.
What is the Active site sometimes called? The keyhole of the lock.
What is Catalysis? When the substrate is changed.
What do enzymes do? Complete very specific jobs and do nothing else.
Enzymes are: Proteins.
What binds to the active site of an enzyme? A substrate.
True or false, An enzyme can only bind one reactant at a time. False.
True or false, An enzyme speeds up a chemical reaction in the cell, but can only be used once. False.
What are substrates converted into? Products.
What also catalyzes reactions? A few RNA molecules called ribozymes.
Created by: lydiajanetaylor