WorksheetsMetabolism: Energy and Enzymes Study Guide
Total questions: 38
Worksheet time: 3hrs 10mins
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Define energy.
the ability to do work
protein molecules that function as an organic catalyst to speed functions
building
reactions in the enzymatic reaction
What are the names of the two types of energy?
kinetic
possible
enzymatic
potential
Define kinetic energy.
used energy
energy of motion
stored energy
the law of conservation of energy
Define potential energy.
energy exerted while sleeping
energy with a lot of potential
energy of motion
stored energy
Label the structure in alphabetical order.
(ex: answer a, answer b, answer c)
Enzyme, substrate, active site
Active site, enzyme, substrate
Substrate, enzyme, active site
Active site, substrate, enzyme
Enzyme, active site, substrate
What is the activation energy?
the energy used when running
the minimum amount of energy that is required to activate atoms or molecules to a condition
i'm running out of ideas to use for wrong answers.
breaking down
What does the First Law of Thermodynamics state?
the minimum amount of energy that is required to activate atoms or molecules to a condition
energy cannot be changed without a loss of usable energy (heat)
the energy required to cause the reaction
energy cannot be created nor destroyed
What are enzymes?
the energy required to cause the reaction
the ability to do work
reactants in the enzymatic reaction, this is what an enzyme attaches to
protein molecules that functions as organic catalysts to speed reactions
What is a substrate?
an active site in an enzyme
a place where energy is stored
reactants in the enzymatic reaction
products in the enzymatic reaction
The First Law of Thermodynamics is also known as the Law of (a) of Energy.
The Second Law of Thermodynamics states...
energy cannot be created nor destroyed
energy cannot be changed without loss of usable energy
living things must obtain energy from their surroundings
energy is obtained from food sources
In The Second Law of Thermodynamics, usable energy is exerted in the form of (a) .
How do we obtain energy?
from our surroundings
by running
from our friends
food sources, the sun,chemicals
enzymes
What do enzymes do?
lower energy required to sleep
speed reactions
lower energy needed for a reaction to occur
attach to substrates
increase the amount of energy needed for a reaction to occur
The energy required to cause the reaction.
kinetic energy
energy of motion
potential energy
energy of activation
What do Induced Fit Models show?
that enzymes are all unique
that substrates and enzymes fit together
substrates are big
that substrates and enzymes almost never fit together
Induced Fit Models are also known as "____ and ____ models" (answer ex: answer 1,answer 2)
(a)
Define degradation.
breaking down
falling
building
putting together
Define synthesis.
assembling legos
breaking down
pulling apart
building
What are the properties of enzymes?
made up of proteins
change after each reaction
speeds up reactions
remain unchanged after each reaction
catalyst
Most enzymes end in the letters (a) .
Yeast are _________.
autotrophs
denatured
heterotrophs
phototrophs
What factors affect enzymatic speed?
substrate concentration
active site concentration
enzyme concentration
temperature and PH
temperature and concentration
What is the denaturing of an enzyme?
changing shape so little that they're still somewhat effective
taking away the natural elements of an enzyme
changing shape so much that they're no longer effective
taking away organisms in an enzyme
Exergonic reactions (a) energy.
Endergonic reactions (a) energy.
The following is true about catabolic reactions:
are considered exergonic
break down larger molecules
are considered endergonic
attach to larger molecules
release energy
The following is true about anabolic reactions:
are considered endergonic
builds complex molecules
are considered exergonic
breakdown complex molecules
absorb energy
During competitive inhibition, the inhibitor binds to the _____ site and ______ the substrate. (ex: answer 1, answer 2)
(a)
During allosteric inhibition, inhibitors bind to _____ site and _____ the shape of the enzyme. (ex: answer 1, answer 2)
(a)
What do allosteric activators do for the enzyme and substrate?
keeps the shape of the enzyme the same for the substrate
changes shape of enzyme so it can't bind to the substrate more efficiently
makes me hysterical<3
changes shape of enzyme so it can bind to the substrate more efficiently
What does this image show?
(a)
What does this image show?
(a)
What kind of reaction is this?
Endergonic
Synthetic
Powerful
Exergonic
What does “A” represent?
energy of activation without enzyme
energy of activation with enzyme
Change in free energy (∆G) of reaction
change in used energy
What does “B” represent?
energy of activation with enzyme
Change in free energy (∆G) of reaction
total energy of sctivation
energy of activation without enzyme
What does “C” represent?
energy of activation with enzyme
Change in free energy (∆G) of reaction
no
energy of activation without enzyme
