Download DeconstructionforEnzymeUnit

Program of Studies:
SC-H-UD-U-2
Students will understand that within every cell are specialized parts for the transport of materials, energy transfer,
protein building, waste disposal, information feedback and even movement. In addition, most cells in multi-cellular
organisms perform specialized functions that others do not.
SC-H-UD-S-7
Students will describe and classify a variety of chemical reactions required for cell functions.
SC-H-UD-S-8
Students will describe the processes by which cells maintain their internal environments within acceptable limits.
Core Content:
SC-HS-3.4.3
Students will:
 describe cell regulation (enzyme function, diffusion, osmosis, homeostasis);
 predict consequences of internal/external environmental change on cell function/regulation.
Cell functions are regulated. Regulation occurs both through changes in the activity of the functions
performed by proteins and through selective expression of individual genes. This regulation allows cells to
respond to their internal and external environments and to control and coordinate cell growth and division.
DOK 2
Knowledge
-Chemical reactions occur
in the cell, and some are
regulated by enzymes.
-Cell functions are
regulated.
-Regulation occurs through
changes in the activity of
the functions performed by
proteins and through
selective expression of
individual genes.
- Regulation occurs through
many processes such as:
diffusion
osmosis
enzyme function
active transport
endocytosis
exocytosis
feedback loops such as the
lac operon
- Regulation through these
processes leads to a state of
homeostasis which is the
maintenance of a state of
Reasoning Skills
• analyze the parts within a
cell responsible for
particular processes and
create analogous models
for those processes
pos• identify a variety of
specialized cell types and
describe how these
differentiated cells
contribute to
the function of an
individual organism as a
whole
-predict consequences of
internal/external
environmental changes on
cell function/regulation
 Explain the
importance of
homeostasis in life’s
chemical reactions.
DOK1
 Explain the role of
transport processes
across the membrane
in maintaining cell
homeostasis. DOK2
 Classify organic
compounds based
upon structure and
Process Skills
Products
appropriate internal
conditions.
-Diffusion is the movement
of molecules from an area
of high concentration to an
area of low concentration.
-Osmosis is a special type
of diffusion involving water
molecules.
-Enzymes are proteins that
regulate chemical reactions
by lowing the activation
energy needed to get the
reaction started.
- Enzymes operate in a
narrow range of
temperature and pH.
Conditions out of this range
can cause the threedimensional shape of the
enzyme to change thus
changing its function. This
is called denaturation.
-Enzymes have an area
called the active site to
which the substrate binds.
The enzyme then causes a
change in the substrate but
is itself unchanged. If
denaturation occurs, the
active site is changed
resulting in the substrate
being unable to bind.
-Inhibitors are molecules
other than the substrate that
bind to the active site of an
enzyme. They prevent the
substrate from binding thus
stopping the enzyme from
working.
-Coenzymes
-Enzymes are responsible
for facilitating many
reactions in the cell. This
includes cell growth and
division through the
process of mitosis.
function. DOK1
 Compare and
contrast osmosis and
diffusion. DOK2
Compare and contrast
active vs. passive transport.
DOK2
 Design an experiment
and predict the type
and direction of
transport that will
occur in a variety of
conditions. DOK3
 Describe and explain
the reasons for the
limits on cell size.
DOK2
Describe and classify a
variety of chemical
reactions required for cell
functions. DOK2
 Describe the
processes by which
cells maintain their
internal
environments within
acceptable limits.
DOK2
 Given a mitotic
anomaly, students
will predict the
consequences to the
daughter cells.
DOK2
Describe and explain the
role proteins/enzymes play
in the movement of
materials across the plasma
membrane. DOK2
 Design an experiment
and predict the
effects of various
factors on enzyme
activity. DOK3
 Apply knowledge of
enzyme activity to
authentic situations
such as fevers, hot
tub use, snake and
insect bites, etc.
Identify a variety of
specialized cell types and
describe how these
differentiated cells
contribute to the function of
- within every cell are
specialized parts for the
transport of materials,
energy transfer, protein
building, waste disposal,
information feedback and
even movement. In
addition, most cells in
multi-cellular organisms
perform specialized
functions that others do not.
- the many body cells in an
individual can be very
different from one another
even though they are
all descended from a single
cell and thus have
essentially identical genetic
instructions. Different
parts of the instructions are
used in different types of
cells.
an individual organism as a
whole. DOK2