Daily TAKS Connection:
Cellular Processes
BIO(4): The student knows that cells are the basic structures of all
living things and have specialized parts that perform specific
functions, and that viruses are different from cells and have
different properties and functions. The student is expected to:
(B) Investigate and identify cellular processes including
homeostasis, permeability, energy production, transportation
of molecules, disposal of wastes, function of cellular parts,
and synthesis of new molecules.
Foldable Activity
Construct a two tab
foldable
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Instructions:
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Materials:
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Foldable handout
Scissors
Pen
Colored
pencils/crayons

Cut each paper
hamburger fold. You
should have 4 ½
pieces of paper.
Staple all sheets
together
Cut on dotted line at
the top of each page
so that you form
“tabs” for each page.
Cell Notes
Record the following notes on each
respective page
Cell Parts
 Nucleus- control center of the cell
 Mitochondria- powerhouse produces energy;
ATP; numerous in muscle cells
 Chloroplast- site of photosynthesis contain
green pigment called chlorophyll to trap
sunlight
 Ribosome- site of protein synthesis
 Cell wall- only in plant cells; structure
 Cell membrane- transport of into/out of cell
 Flagella & Cilia- movement of the cell
Record the following notes on each
respective page
Cell Energy Notes
Cell Energy
Photosynthesis:
CO2 + H2O + Energy  C6H12O6 + O2
(Reactants)
(Products)
Respiration:
C6H12O6 + O2  ATP + H20 + CO2
(Reactants)
Depletion of oxygen
results in production of
lactic acid build-up (sore
muscles)
(Products)
Record the following notes on each
respective page
Cell Transport Notes
Cell Transport
Osmosis is the diffusion of water across a
semi-permeable membrane called the
lipid bilayer or cell membrane
Sit back and watch a movie!
Diffusion
http://www.coolschool.ca/lor/BI12/unit4/U04L03/diffusion.
swf
Osmosis
http://www.stolaf.edu/people/giannini/flashanimat/transport/osmosis.swf
Record the following notes on each
respective page
Homeostasis Notes
Homeostasis
 If a cell becomes to large to carry out
homeostasis, it divides into 2 identical
cells (binary fission)
 Dynamic Equilibrium is reached when
concentrations are equal on both sides
of the concentration gradient.
Question 1
Which would most likely cause the liquid in Tube A to rise?
a. Starch concentrations being equal on each side of the membrane
b. Water and starch volumes being the same
c. Water passing from a region of lower starch concentration to one of
higher starch concentration
d. Solute in the tubes changing from a higher temperature to a lower
temperature
Question 2
Why are photosynthesis and cellular respiration often considered
opposites?
a. Photosynthesis produces twice as many ATP molecules as cellular
respiration does.
b. Photosynthesis occurs during the day, and cellular respiration
occurs at night.
c. Water is released during photosynthesis and consumed during
cellular respiration.
d. Oxygen is produced during photosynthesis and used during
cellular respiration.
Question 3
The picture shows a cell model and the solutions
associated with it. In this situation the cell model will —
a.
c.
b.
d.
gain mass
increase in solute content
shrink
start to vibrate
Cell Match Up