Fish Liver

DescriptionLab Report Guideline
Total 300 point
Topic: Fish dissection and tissue research
Scoring Rules:
1. Title, Student Name, Date (10 point)
2. Introduction (60 point): Explain the background of the fish and the relevant background of the
selected tissues and organs. Explain the purpose of the study, such as studying a certain cell or
studying a particular tissue, organ or structure. Explain the principle of dyeing.
3. Materials and Methods (30 point): Describe the various materials required for dyeing.
4. Result (80 point): Explain the experimental results, show pictures, ask to show different
magnifications, light microscopes and fluorescence microscopes.
5. Discussion (90 point): Analyze your experimental results and observations, discuss cell
morphology and function, cite pictures from the literature for comparison, explain similarities or
differences between the two, and suggest improvements on how to better conduct experiments
(or explain your what did well or poorly in this experiment). If you have any findings that are not
in the literature, focus on describing them.
6. References (30 point): There are at least three, at least one of which is related to the fish.
7. At least 5 pages (including title and reference)
Tips:
1. Showing your images, giving more context, and doing more comparisons of literature images
can help you achieve the length of your article.
2. The entire report should be no more than 10 pages and no less than 5 pages (Going out of
range will reduce your score).
3. Please do not copy and paste anything from anywhere into your lab report, if you are found to
be plagiarized, you will directly get zero points.
Fish Liver
The White Perch
• The white perch belongs to the temperate bass
family and is not a true perch.
• Adult size: between seven to 12 inches.
• White Perch are a small silver, greenish-gray fish
with a dark back.
Our Specimen


Species: The White Perch or Morone americana
Color: Has a brown top and sliver/yellowish underbelly
Size: 20.32 cm / 8 inches


Habitat: Freshwater
Liver
01
02
Characteristics:
Special Cells of the Liver:

03
Function:







A smaller organ compared to the other
Processing and storage of nutrients
Synthesis of enzymes and other cofactors
Bile formation and excretion
Metabolism of xenobiotic compounds
Hepatocytes
Biliary epithelial cells
Endothelial cells
04
Special Structures:

Sinusoids
Special cells
Hepatocytes


They make up 80% of the
liver mass
They are used for
Biliary Epithelial
metabolism, detoxification,
Cells
and protein synthesis
• Modifies bile before it goes
into intestines
• Is in the biliary tract
Endothelial Cells
• Regulates exchange
between the bloodstream
and tissue
How important is cell or structure in
the body of the fish?
The liver of the White Perch is very important for its survival.
It does a lot of jobs like storing nutrients, cleaning harmful
things, and making enzymes. Different types of cells, like
hepatocytes, biliary epithelial cells, and endothelial cells, help
the liver do these jobs. Hepatocytes are the main cells that do
the work of changing things in the liver. Biliary epithelial cells
change bile before it goes to the intestines, and endothelial
cells help things move around. All of these cells working
together is important for the White Perch to stay healthy.
Microscope Tools Used
Tweezers
Light Microscope
Scalpel
Fluorescent Microscope
Our Tissues pictures
Note: we took this picture from our
friends
Provided by Alex and
Kylie
Provided by Alex and
Kylie
References
A brief overview of nonneoplastic hepatic toxicity in fish. (n.d.). Retrieved April
20, 2023, from
https://journals.sagepub.com/doi/abs/10.1080/01926230590890187
Zhou, Z., Xu, M.-J., & Gao, B. (2015, December 21). Hepatocytes: A key cell
type for innate immunity. Nature News. Retrieved April 20, 2023, from
https://www.nature.com/articles/cmi201597
Thanks!

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