Transcript The ability to do work or bring about a change

The ability to do
work or bring about
a change
•ENERGY
•Food is specifically called
_________________ energy,
because energy is stored in its
bonds.
•Chemical Energy
Looking at the picture of Max on a slide, indicate
where you would find kinetic and potential energy
•Potential-On top of the slide
•Kinetic-Once Max goes down the slide
The boys are eating and then join a soccer
game. Where would you find mechanical
energy and chemical energy?
•Chemical energy is found in our
food, we break it down
metabolically and convert it into
mechanical energy (motion)
What is the First Law
of Thermodynamics?
•Energy cannot be created or
destroyed, but can be changed
from one form to another.
(Conservation of Energy)
•The 2nd Law of Thermodynamics states
that energy cannot be changed from
one form to another without a loss of
usable energy.
•What is the “useable energy” usually
released as?
•Heat
•The relative amount of
disorganization is called:
•Entropy
Which room is more stable and would
therefore favor the laws of entropy?
•The messy one is more
stable. The clean one
requires more “work” to stay
clean.
•Explain the difference between
endergonic and exergonic
reactions
•Endergonic- require an input of energy (cold
pack)
•Exergonic-releases energy (explosion)
•What is the difference
between anabolic and
catabolic?
•Anabolic-The building up or synthesis of
molecules
•Catabolic-The breaking down of
molecules
•What does ATP turn into
after it has been hydrolyzed
by water and has given off
energy?
•ATP is broken down by water
(hydrolysis) gives off energy and
heat and turns into ADP
Describe how endergonic and exergonic
reactions are “coupled” in lifting weights
•ATP breaks down to release energy
(exergonic) your muscles use that
energy to contract (endergonic)
List the 3 types of “work”
that ATP can be used for
•Chemical work, transport
work and mechanical work
Enzymes are metabolic catalysts that lower
the _________________, so that the reaction
can occur quicker.
•Energy of Activation, or Ea
•The change in energy of the products
from the reactants is written
as_________________________
•DELTA G
•An enzyme that would break
down the sugar Maltose, would
most likely be named:
•Maltase
What are the 6 factors
affecting enzymatic
speed?
• Temperature
• pH
• Substrate concentration
• Enzyme Activation
• Enzyme Inhibition
• Enzyme Cofactors
When an Enzyme can no longer
bind to its substrate because of
exposure to high heat, we say
that the enzyme has been:
•Denatured