Microscopy Lab

Download Report

Transcript Microscopy Lab

Microscopy Lab
Cell Structure Lab
Let’s Get Started!
Grab microscope and a
colored thread slide
Carefully use the
microscope to center
the threads on the
lowest power
Play with the light from
underneath the stage
Microscopy
Check List
•Center the image
BEFORE going up!
•Adjust light with
diaphragm and lens
underneath the
stage.
•When on Low
power drive around
the whole field and
choose an area that
is clear and well
defined.
“ I can’t see anything?!?”
What do I do???
• Go back down- back up one
objective lens and CENTER
whatever you want to look at!
• Focus! Be sure what you want
is perfectly in focus before you
go up an objective lens.
• Be sure your specimen is
THIN and FLAT- remember
the scope only focuses in one
plane.
• Adjust the light from
underneath stage.
Elodea
Elodea
Lab Quiz: Cell
Structure Quiz
Using a piece of paper
from your notebook
please answer the
following questions.
You should refer to your
diagrams from your lab
notebook to help you
make your choice.
1. Which is the correct order of the images?
11
2
3
A. plant, plant, plant, plant
B. Eukaryote, animal, plant, onion
C. Green plant, cheek cell, potato cell, and onion cells
D. Prokaryotic, eukaryotic, plant, cheek
4
2. What is the relationship
between the two images?
A. Both images are plant
cells because I can see
cell walls.
A
B. Both are plant cells
because the nucleus is
very prominent in both
images
C. A has a large central
vacuole and is a plant
cell. B has many cheek
cell stacked in layers.
D. Both are prokaryotic cells
B
3. Animal or Plant?
A. Animal
B. Animal- b/c I can
see a nucleus
C. Plant cell- b/c I
can see a large
central vacoule
D. Prokaryote
E. Both C and D are
true
4. Which is Animal and which is Plant?
A
B