The University of Utah Genetics Webpage: Amazing Cells
http://learn.genetics.utah.edu/content/begin/cells/
On the bottom of the page find Cell Size and Scale. For each of the following object write
down its approximate surface area (either use the chart on the left or calculate it from the
dimensions.)
Grain of rice
X chromosome
Phage
Water molecule
Sesame seed
Red blood cell
Hemoglobin
Carbon atom
Human egg cell
Measles virus
Glucose
Click on Inside a Cell. Find the following organelles and write the function of those organelles
in the space provided below.
Golgi apparatus
Lysosome
Nucleus
Mitochondria
Cytoskeleton
Endoplasmic Reticulum
Click on Membranes Organize Cellular Complexity. For each of the sections describe
specifically what membranes do in this instance.
Membranes Define Compartments
Membranes Form Spontaneously
Membrane Proteins Control Traffic
Describe: transporters, channels and receptor proteins
Membranes Are Fluid
Click on The Inside Story of Cell Communication. Describe what type of cell
signaling/communication is occurring in the video/image for each of the following below.
Signals Travel Into Cells
Signals Pass From Protein To Protein
Proteins Direct Cellular Response
Cells Integrate Multiple Signals
Click on Dropping Signals. Click on one of the cell types and describe how each of the
signals: light, NO, cytokine / growth factor, and a hormone affect the cell.
Muscle
Light
NO
Cytokine / growth factor
hormone
Photoreceptor
Light
NO
Cytokine / growth factor
hormone
Cancer
Light
NO
Cytokine / growth factor
hormone
Leaf Parenchyma (what is parenchyma?)
Light
NO
Cytokine / growth factor
hormone
Fibroblast
Light
NO
Cytokine / growth factor
hormone
Click on When Cell Communication Goes Wrong. For each section state the disease
discussed and how is it related to a break down in cell communication.
Losing the Signal
Disease:_________________________
Error in cell
signaling:_______________________________________________________________________________
________________________________________________________________________________________
________________________________________________________________________________________
__________________
When A Signal Doesn’t Reach Its Target
Disease:_________________________
Error in cell
signaling:_______________________________________________________________________________
________________________________________________________________________________________
________________________________________________________________________________________
__________________
When The Target Ignores The Signal
Disease:_________________________
Error in cell
signaling:_______________________________________________________________________________
________________________________________________________________________________________
________________________________________________________________________________________
__________________
Too Much Signal
Disease:_________________________
Error in cell
signaling:_______________________________________________________________________________
________________________________________________________________________________________
________________________________________________________________________________________
__________________
Multiple Breakdowns
Disease:_________________________
Error in cell
signaling:_______________________________________________________________________________
________________________________________________________________________________________
________________________________________________________________________________________
__________________
Treatments
Disease:_________________________
Error in cell
signaling:_______________________________________________________________________________
________________________________________________________________________________________
________________________________________________________________________________________
__________________