BIO 40A
LABORATORY REPORT
EXERCISE 3 THE MICROSCOPE
EXERCISE 4 THE CELL
NAME: ________________________________________________________________
SECTION:________________________
DATE:__________________________
Identify the parts of a microscope.
If the size of the high power field is 1.2 mm, an object that occupies approximately a third of that field
has an estimated diameter of _______0.4_________mm.
Draw a picture of the cells from a
simple squamous epithelium
Indicate the total magnification you are using.
Label the following structures:
- Cell membrane
- Nucleus
- Cytoplasm
Draw a picture of red blood cells.
Indicate the total magnification you are using.
-
What is the significance of the red blood cell
being anucleate (without a nucleus)?
The red blood cell contains Hemoglobin,
if there is no nucleus, there is more room for hemoglobin,
that is their only function, to transport hemoglobin
-
Did it ever have a nucleus?
Yes, during their development they had nucleus,
but it was removed.
Draw a picture of sperm cells
Indicate the total magnification you are using.
Label the following structures:
- Head
- Tail
How the tail relate to the function of these cells?
The tail allows movement, the sperm cell needs to move,
needs to swim to reach the egg in the female
reproductive system
Draw a picture of smooth muscle cells
Indicate the total magnification you are using.
Of the four cells observed microscopically
Which has the smallest diameter?
Which is the largest?
Smooth muscle cell
Estimated size of the cells:
Red blood cell: ____8-10 microns____
Sperm cell: ___45 - 50 microns, head only: 5 microns________
Squamous epithelial cell: ___40 - 70 microns_____
Smooth muscle cell: ___100 - 150 microns____
Draw a picture of a cell in stage of metaphase
from the slide of Whitefish blastulae
Draw a picture of a cell in stage of anaphase
from the slide of whitefish blastulae.