Download Case#1 Erythocytes (red blood cells), are much smaller than most

NAME_____________________________________________________________________BLOCK__________
Eunice Eukaryote, Cell Doctor M.D
PART 1:
The following are REAL conditions affecting plant animal and bacterial cells. Try and figure what is going
on!! (these are difficult, but give them a try)
Case#1
Erythocytes (red blood cells), are much smaller
than most human cells, and contain about 270
million hemoglobin molecules, the molecule
responsible for carrying oxygen. However, at
maturity, they have no nuclei, mitochondria, or any
other organelle. Why?
Case #3
Pompe’s disease is one of a class of lysosomal
storage diseases in which one or more enzymes that
are normally found in the lysosomes are defective
or absent. In Pompe’s disease, the enzyme
designed for breaking down glycogen (starch) is
absent. Describe what you would see in the cells of
an individual with Pompe’s disease? What danger
would this pose for cells in the individual’s body?
Case #4
Corn Smut Fungus, a fungus that affects corn
plants, gets its energy by eating cellulose, a
main component of plant cell walls. What
effect would this fungus have on the corn
cells? On the plant overall? Why do farmers
and livestock not have to worry about infection
from this fungus?
Case #5 A family of viruses known as the stunt
viruses, infect plant cell chloroplasts. Explain
what would happen to a plant that was infected
by such a virus.
Case 9: When plants are fully fed and watered,
they often appear to stand straight up. When
forgetful students fail to water the plants they
begin to wilt. Explain what is happening.
What organelle is directly involved?
PART 2:
1. Identify the type (plant, animal or bacteria) of cell in the examples on the next page.
Circle an identifying characteristic of that particular cell
A.
B.
C..
D.
PART 3
Try these cell questions: They will be similar to what you see on a test or quiz.
1. Each of the following is a cell organelle except one. Which one of these is NOT a cell
organelle?
a) mitochondrion
b) lysosome
c) cytoplasm
d) endoplasmic reticulum
3. What structure is common to ALL cells?
a) Chloroplast
b) Cell membrane
d) Mitochondria
c) Cell wall
e) Flagella
4. When a large proportion of a cell's ribosomes are attached to the endoplasmic reticulum, it is
a sign that the cell is specialized to:
a. Manufacture glucose for storage
b. Manufacture phospholipids for cell growth
c. Perform photosynthesis with high efficiency
d. Manufacture proteins for export