Study sets matching "enzymes"

Study sets
Classes
Users

Study sets matching "enzymes"

18 terms
Enzymes
How do enzymes catalyze reactions?
True or False: Enzymes start chemical…
Enzyme substrate
The enzyme binds to its substrate, for…
By lowering the activation energy required for the reaction t…
FALSE. Enzymes don't start reactions- they SPEED UP reactions…
The reactant that an enzyme acts on.
Enzyme-substrate complex
How do enzymes catalyze reactions?
By lowering the activation energy required for the reaction t…
True or False: Enzymes start chemical…
FALSE. Enzymes don't start reactions- they SPEED UP reactions…
Enzymes
How do enzymes catalyze reactions?
True or False: Enzymes start chemical…
Substrate
The enzyme binds to its substrate, for…
by lowering the activation energy required for the reaction t…
FALSE. Enzymes don't start reactions- they SPEED UP reactions…
The reactant that an enzyme acts on
Enzyme-substrate complex
How do enzymes catalyze reactions?
by lowering the activation energy required for the reaction t…
True or False: Enzymes start chemical…
FALSE. Enzymes don't start reactions- they SPEED UP reactions…
13 terms
Enzymes
How do enzymes catalyze reactions?
True or False: Enzymes start chemical…
Enzyme substrate
The enzyme binds to its substrate, for…
by lowering the activation energy required for the reaction t…
FALSE. Enzymes don't start reactions- they SPEED UP reactions…
The reactant that an enzyme acts on
Enzyme-substrate complex
How do enzymes catalyze reactions?
by lowering the activation energy required for the reaction t…
True or False: Enzymes start chemical…
FALSE. Enzymes don't start reactions- they SPEED UP reactions…
Enzymes *
How do enzymes catalyze reactions?
True or False: Enzymes start chemical…
Enzyme substrate
The enzyme binds to its substrate, for…
by lowering the activation energy required for the reaction t…
FALSE. Enzymes don't start reactions- they SPEED UP reactions…
The reactant that an enzyme acts on
Enzyme-substrate complex
How do enzymes catalyze reactions?
by lowering the activation energy required for the reaction t…
True or False: Enzymes start chemical…
FALSE. Enzymes don't start reactions- they SPEED UP reactions…
15 terms
Enzymes
What are enzymes?
What is the active site on an enzyme
What is a chemical reaction?
What is the significance of the three…
A polypeptide (protein) of around 100 amino acids in length w…
A special notch on the surface of an enzyme where chemical re…
A reaction that chemically transforms one substance into anot…
Enzyme names typically end in those 3 letters (lactase: enzym…
What are enzymes?
A polypeptide (protein) of around 100 amino acids in length w…
What is the active site on an enzyme
A special notch on the surface of an enzyme where chemical re…
44 terms
Enzymes
anabolic reactions
catabolic reactions
exergonic reactions
endergonic reactions
form bonds between molecules; requires an input of energy... Ex.…
break bonds between molecules; gives off energy... Ex. hydrolysis
reactions that give off energy... ex. hydrolysis (catabolism)
reactions that require an input of energy... ex. dehydration syn…
anabolic reactions
form bonds between molecules; requires an input of energy... Ex.…
catabolic reactions
break bonds between molecules; gives off energy... Ex. hydrolysis
Enzymes *
How do enzymes catalyze reactions?
True or False: Enzymes start chemical…
Substrate
The enzyme binds to its substrate, for…
by lowering the activation energy required for the reaction t…
FALSE. Enzymes don't start reactions- they SPEED UP reactions…
The reactant that an enzyme acts on
Enzyme-substrate complex
How do enzymes catalyze reactions?
by lowering the activation energy required for the reaction t…
True or False: Enzymes start chemical…
FALSE. Enzymes don't start reactions- they SPEED UP reactions…
25 terms
Enzymes
How do enzymes catalyze reactions?
True or False: Enzymes start chemical…
Enzyme substrate
The enzyme binds to its substrate, for…
by lowering the activation energy required for the reaction t…
FALSE. Enzymes don't start reactions- they SPEED UP reactions…
The reactant that an enzyme acts on
Enzyme-substrate complex
How do enzymes catalyze reactions?
by lowering the activation energy required for the reaction t…
True or False: Enzymes start chemical…
FALSE. Enzymes don't start reactions- they SPEED UP reactions…
Enzymes *
How do enzymes catalyze reactions?
True or False: Enzymes start chemical…
Enzyme substrate
The enzyme binds to its substrate, for…
by lowering the activation energy required for the reaction t…
FALSE. Enzymes don't start reactions- they SPEED UP reactions…
The reactant that an enzyme acts on
Enzyme-substrate complex
How do enzymes catalyze reactions?
by lowering the activation energy required for the reaction t…
True or False: Enzymes start chemical…
FALSE. Enzymes don't start reactions- they SPEED UP reactions…
19 terms
Enzymes
How do enzymes catalyze reactions?
True or False: Enzymes start chemical…
Enzyme substrate
The enzyme binds to its substrate, for…
by lowering the activation energy required for the reaction t…
FALSE. Enzymes don't start reactions- they SPEED UP reactions…
The reactant that an enzyme acts on
Enzyme-substrate complex
How do enzymes catalyze reactions?
by lowering the activation energy required for the reaction t…
True or False: Enzymes start chemical…
FALSE. Enzymes don't start reactions- they SPEED UP reactions…
Enzymes
enzyme
activation energy
weakens bonds
brings substrates together
a protein that speeds up the rate of a chemical reaction
the energy needed to start a chemical reaction
way of lowering activation energy by enzymes that break molec…
way of lowering activation energy by enzymes that unite molec…
enzyme
a protein that speeds up the rate of a chemical reaction
activation energy
the energy needed to start a chemical reaction
13 terms
Enzymes
How do enzymes speed up reactions?
substrate
What is the active site?
True or false: Enzymes fit with any sh…
by lowering the activation energy required for the reaction t…
The reactant that an enzyme acts on
The active site is the region on the enzyme where the substra…
FALSE. Each substrate/reactant has a unique shape. The have a…
How do enzymes speed up reactions?
by lowering the activation energy required for the reaction t…
substrate
The reactant that an enzyme acts on
19 terms
Enzymes *
How do enzymes catalyze reactions?
True or False: Enzymes start chemical…
Enzyme substrate
The enzyme binds to its substrate, for…
by lowering the activation energy required for the reaction t…
FALSE. Enzymes don't start reactions- they SPEED UP reactions…
The reactant that an enzyme acts on
Enzyme-substrate complex
How do enzymes catalyze reactions?
by lowering the activation energy required for the reaction t…
True or False: Enzymes start chemical…
FALSE. Enzymes don't start reactions- they SPEED UP reactions…
44 terms
Enzymes
What is the energy in chemical bonds?
What is the energy used to do things?
What does a reaction start with?
What does a reaction result in?
Potential energy
Kinetic energy
A substrate
A product
What is the energy in chemical bonds?
Potential energy
What is the energy used to do things?
Kinetic energy
Enzymes
-ase
-ose
Enzymes are special types of _________…
Enzymes help to __________________ or…
enzyme
sugar
proteins
build things up or break things down.
-ase
enzyme
-ose
sugar
14 terms
Enzymes
How do enzymes catalyze reactions?
True or False: Enzymes start chemical…
Substrate
The enzyme binds to its substrate, for…
by lowering the activation energy required for the reaction t…
FALSE. Enzymes don't start reactions- they SPEED UP reactions…
The reactant that an enzyme acts on
Enzyme-substrate complex
How do enzymes catalyze reactions?
by lowering the activation energy required for the reaction t…
True or False: Enzymes start chemical…
FALSE. Enzymes don't start reactions- they SPEED UP reactions…
Enzymes *
How do enzymes catalyze reactions?
True or False: Enzymes start chemical…
Enzyme substrate
The enzyme binds to its substrate, for…
by lowering the activation energy required for the reaction t…
FALSE. Enzymes don't start reactions- they SPEED UP reactions…
The reactant that an enzyme acts on
Enzyme-substrate complex
How do enzymes catalyze reactions?
by lowering the activation energy required for the reaction t…
True or False: Enzymes start chemical…
FALSE. Enzymes don't start reactions- they SPEED UP reactions…
52 terms
Enzymes
Define catalyst
How does a catalyst accelerate a react…
Why are enzymes remarkable catalysts?
In what conditions do enzymes work best?
substance that changes the rate of a reaction without being u…
It lowers the activation energy
they have enormous rates of acceleration and extraordinary sp…
netural pH and room temp
Define catalyst
substance that changes the rate of a reaction without being u…
How does a catalyst accelerate a react…
It lowers the activation energy
Enzymes *
How do enzymes catalyze reactions?
True or False: Enzymes start chemical…
Enzyme substrate
The enzyme binds to its substrate, for…
by providing an alternative pathway for the reaction with a l…
FALSE. Enzymes don't start reactions- they SPEED UP reactions…
The reactant that an enzyme acts on
Enzyme-substrate complex
How do enzymes catalyze reactions?
by providing an alternative pathway for the reaction with a l…
True or False: Enzymes start chemical…
FALSE. Enzymes don't start reactions- they SPEED UP reactions…
18 terms
Enzymes
How do enzymes catalyze reactions?
True or False: Enzymes start chemical…
What is a substrate?
The enzyme binds to its substrate form…
by lowering the activation energy required for the reaction t…
FALSE. Enzymes don't start reactions- they SPEED UP reactions…
The reactant that an enzyme acts on
An enzyme-substrate complex
How do enzymes catalyze reactions?
by lowering the activation energy required for the reaction t…
True or False: Enzymes start chemical…
FALSE. Enzymes don't start reactions- they SPEED UP reactions…
9 terms
Enzymes *
How do enzymes catalyze reactions?
True or False: Enzymes start chemical…
Enzyme substrate
The enzyme binds to its substrate, for…
by lowering the activation energy required for the reaction t…
FALSE. Enzymes don't start reactions- they SPEED UP reactions…
The reactant that an enzyme acts on
Enzyme-substrate complex
How do enzymes catalyze reactions?
by lowering the activation energy required for the reaction t…
True or False: Enzymes start chemical…
FALSE. Enzymes don't start reactions- they SPEED UP reactions…
Enzymes *
How do enzymes catalyze reactions?
True or False: Enzymes start chemical…
Substrate
The enzyme binds to its substrate, for…
by lowering the activation energy required for the reaction t…
FALSE. Enzymes don't start reactions- they SPEED UP reactions…
The reactant that an enzyme acts on
Enzyme-substrate complex
How do enzymes catalyze reactions?
by lowering the activation energy required for the reaction t…
True or False: Enzymes start chemical…
FALSE. Enzymes don't start reactions- they SPEED UP reactions…
18 terms
Enzymes
Function of enzymes
How do enzymes make a reaction happen…
What is activation energy?
What is the active site?
speed up chemical reactions
Lower the activation energy needed to get reaction to go
Amount of energy needed to get a reaction to start. It's the…
The groove on the enzyme where the substrate fits.
Function of enzymes
speed up chemical reactions
How do enzymes make a reaction happen…
Lower the activation energy needed to get reaction to go
25 terms
Enzymes *
How do enzymes catalyze reactions?
True or False: Enzymes start chemical…
Enzyme substrate
The enzyme binds to its substrate, for…
by lowering the activation energy required for the reaction t…
FALSE. Enzymes don't start reactions- they SPEED UP reactions…
The reactant that an enzyme acts on
Enzyme-substrate complex
How do enzymes catalyze reactions?
by lowering the activation energy required for the reaction t…
True or False: Enzymes start chemical…
FALSE. Enzymes don't start reactions- they SPEED UP reactions…
82 terms
Enzymes
What are the steps of the scientific m…
Application of the scientific method?
When does a hypothesis become a scient…
Controlling the variables in a experim…
1. Observation... 2. previous data... 3. formulation of a hypothesi…
A hypothesis is a statement or prediction based on knowledge…
This means to keep all variables in an experiment constant ex…
What are the steps of the scientific m…
1. Observation... 2. previous data... 3. formulation of a hypothesi…
Application of the scientific method?
Enzymes
Solar energy
Cellular energy
catalyst
enzymes
energy from the sun
energy stored in the bonds of biomolecules
substance that speeds up a reaction, without itself being use…
proteins that speed up a reaction without being used up in th…
Solar energy
energy from the sun
Cellular energy
energy stored in the bonds of biomolecules
11 terms
Enzymes
Active site
Substrate
Activation energy
Products
Region of an enzyme into which a particular substrate fits.
The material(s) on which an enzyme acts
Energy needed to get a reaction started
The new substance(s) produced from substrate
Active site
Region of an enzyme into which a particular substrate fits.
Substrate
The material(s) on which an enzyme acts
20 terms
Enzymes
Active site
Enzyme
Substrate
Denature
The specific portion of an enzyme that attaches to the substr…
A biological catalyst that speeds up a chemical reaction in a…
A specific reactant acted upon by an enzyme
To change the shape of a protein and render it ineffective.
Active site
The specific portion of an enzyme that attaches to the substr…
Enzyme
A biological catalyst that speeds up a chemical reaction in a…
Enzymes
Enzyme-substrate complex
Complimentary
Tertiary structure
Denature
The insertion of a substrate into the active site of an enzyme.
The shape of the substrate fits into the active site.
The level of protein structure that gives the protein its 3D…
Altering the bonds that hold the tertiary structure together,…
Enzyme-substrate complex
The insertion of a substrate into the active site of an enzyme.
Complimentary
The shape of the substrate fits into the active site.
7 terms
Enzymes
Catalyst
Concentration
Substrate
Enzyme
(chemistry) a substance that initiates or accelerates a chemi…
A measurement of how much solute exists within a certain volu…
A specific reactant acted upon by an enzyme
A type of protein that speeds up a chemical reaction in a liv…
Catalyst
(chemistry) a substance that initiates or accelerates a chemi…
Concentration
A measurement of how much solute exists within a certain volu…
14 terms
Enzymes
amion acids
carbohydrates
proteins
enzymes
a simple organic compound containing both a carboxyl (—COOH)…
any of a large group of organic compounds occurring in foods…
any of a class of nitrogenous organic compounds that consist…
a substance produced by a living organism that acts as a cata…
amion acids
a simple organic compound containing both a carboxyl (—COOH)…
carbohydrates
any of a large group of organic compounds occurring in foods…
Enzymes
Isoenzymes
Enzymes
Properties of enzymes
Study enzymes by
Enzymes that differ in amino acid sequence but catalyse the s…
Protein catalyses, increase the rate of reaction without bein…
Highly specific, have catalytic effect, active site is comple…
- homogenising (breaking cell membrane carefully to keep orga…
Isoenzymes
Enzymes that differ in amino acid sequence but catalyse the s…
Enzymes
Protein catalyses, increase the rate of reaction without bein…
6 terms
Enzymes
Enzymes are ___________.
They reduce the ______ ________ needed…
Enzymes work on ______________.
The enzyme suffix is ______.
Proteins
Activation Energy
Substrates
-ase
Enzymes are ___________.
Proteins
They reduce the ______ ________ needed…
Activation Energy
enzymes
substrate
products
catalyst
active site
protiens that enzymes work on ... (the key)
after the enzyme lets go
substance that increases the rate of a chemical reaction- red…
specially shaped area of the enzyme that fits perfectly aroun…
substrate
protiens that enzymes work on ... (the key)
products
after the enzyme lets go
Enzymes
Mouth
Salivary glands
Oesophagus
Gullet
physical digestion to break down the food
adds saliva,containing enzymes(amylase) for chemical digestion
moves food from mouth to stomach.
the passage by which food passes from the mouth to the stomac…
Mouth
physical digestion to break down the food
Salivary glands
adds saliva,containing enzymes(amylase) for chemical digestion
enzymes
Enzyme
Catalyst
substrate
active site
A type of protein that speeds up a chemical reaction in a liv…
A substance that initiates or accelerates a chemical reaction…
A specific reactant acted upon by an enzyme
The part of an enzyme or antibody where the chemical reaction…
Enzyme
A type of protein that speeds up a chemical reaction in a liv…
Catalyst
A substance that initiates or accelerates a chemical reaction…
7 terms
enzymes
substrate
enzyme
induced-fit model
competitive inhibition
reactant in biochemical reaction
globular protein which acts as a catalyst for biochemical rea…
substrate
reactant in biochemical reaction
enzyme
globular protein which acts as a catalyst for biochemical rea…
14 terms
Enzymes
Active Site
Substrate
Catalyst
Enzyme
The area of an enzyme where the substrate binds
The substance that an enzyme reacts with
Something that speeds up the rate of chemical reactions witho…
Biological Catalysts
Active Site
The area of an enzyme where the substrate binds
Substrate
The substance that an enzyme reacts with
22 terms
Enzymes
Enzymes
Enzyme Functions
Activation Energy
Substrate
Proteins which act as biological catalysts and are reusable
Speed up chemical reactions that would be slow at cellular te…
Reduce the energy that is necessary for a reaction to occur
The chemical an enzyme works on
Enzymes
Proteins which act as biological catalysts and are reusable
Enzyme Functions
Speed up chemical reactions that would be slow at cellular te…
Enzymes
1850s
1878
1926
1950s/60s
Pasteur, fermentation
Kuhne, "enzyme" (greek for "in yeast") to describe reactions…
Sumner, first enzyme purified, enzyme=protein
thousands of enzymes characterized
1850s
Pasteur, fermentation
1878
Kuhne, "enzyme" (greek for "in yeast") to describe reactions…
14 terms
Enzymes
Biological catalysts
Active Site
Substrate
E + S ⇌ ES > E + P
Soluble globular protein molecules that can speed up rate of…
Cleft in the surface where substrate binds. ... Has a unique sha…
Substance on which an enzyme acts
Enzyme + Substrate ⇌ Enzyme Substrate Complex > Enzyme + Prod…
Biological catalysts
Soluble globular protein molecules that can speed up rate of…
Active Site
Cleft in the surface where substrate binds. ... Has a unique sha…
41 terms
Enzymes
Enzyme
Enzyme-substrate complex
Synthesis
Lysis
Biological organic catalyst.... Lowers the activation energy fo…
Enzymes bind to molecules called reactants (substrates) durin…
Reaction where bonds are created
Reaction where bonds are broken aka Decomposition
Enzyme
Biological organic catalyst.... Lowers the activation energy fo…
Enzyme-substrate complex
Enzymes bind to molecules called reactants (substrates) durin…
Enzymes
Biological catalyst
Enzyme
Protein
Active site
A protein that speeds up the reactions that occur inside cell…
A biological catalyst
A biological molecule that is made up of amino acids.
The location in the enzyme that substrate binds to. It has a…
Biological catalyst
A protein that speeds up the reactions that occur inside cell…
Enzyme
A biological catalyst
20 terms
Enzymes
catalyst (n.)
rate (n.)
toxin (n.)
speed up (v. phrase)
something that speeds up the rate of a chemical reaction
how fast or slow something happens
a poison,... something that can harm the body
more fast, faster, increase speed
catalyst (n.)
something that speeds up the rate of a chemical reaction
rate (n.)
how fast or slow something happens
11 terms
Enzymes
Enzyme
Catalyst
Metabolism
Homeostasis
A type of protein that speeds up a chemical reaction in a liv…
A substance that speeds up the rate of a chemical reaction.
Chemical reactions in living organisms that are necessary to…
Cells and systems maintain a constant internal balance.
Enzyme
A type of protein that speeds up a chemical reaction in a liv…
Catalyst
A substance that speeds up the rate of a chemical reaction.
41 terms
Enzymes
energy
first law of thermodynamics
second law of thermodynamics
Gibb's Free Energy
ability to do work; ability to change matter
energy cannot be created or destroyed
no energy transfer is 100% effective (lose energy as heat)
- second law of thermodynamics... - energy available= (change in…
energy
ability to do work; ability to change matter
first law of thermodynamics
energy cannot be created or destroyed
69 terms
Enzymes
enzyme history
catalyst
enzymes are catalysts that exhibit
ribozymes are
glucose --> ethanol via yeast fermentation (beer)... canteens --…
a substance, usually small amounts relative to reactants, tha…
1) higher reaction rates = 10^6-10^12 times faster... 2) milder…
RNA catalysts
enzyme history
glucose --> ethanol via yeast fermentation (beer)... canteens --…
catalyst
a substance, usually small amounts relative to reactants, tha…
6 terms
Enzymes
Enzyme
Catalyst
Activation Energy
Substrate
Proteins that act as catalyst, speed up chemical reaction
A chemical which speeds up the rate of a reaction
The amount of energy required to start a reaction
The reactant to which an enzyme binds
Enzyme
Proteins that act as catalyst, speed up chemical reaction
Catalyst
A chemical which speeds up the rate of a reaction
Enzymes
it enables the bloodstream to carry ca…
exothermic
endothermic
activation energy
why is CO2 + H2O = H2CO2 an important reaction in our bodies?
chemical reaction that RELEASES energy
chemical reaction that ABSORBS energy
the amount of energy that is needed to start a reaction
it enables the bloodstream to carry ca…
why is CO2 + H2O = H2CO2 an important reaction in our bodies?
exothermic
chemical reaction that RELEASES energy
Enzymes
reactant
chemical reaction
product
activation energy
A chemical substance that is present at the start of a chemic…
(chemistry) a process in which one or more substances are cha…
A substance produced in a chemical reaction
Energy needed to get a reaction started
reactant
A chemical substance that is present at the start of a chemic…
chemical reaction
(chemistry) a process in which one or more substances are cha…
6 of 10