The document discusses the functions of the kidney and how to trace the process of urine production through a filtering experiment. It explains that the kidneys filter waste from the blood to produce urine. The experiment uses a funnel and filter paper to represent the nephrons in the kidneys filtering waste materials from a mixture representing blood. The filter paper separates out coarse waste materials that do not pass through, similar to how the kidneys filter out urea and other waste from the blood to produce urine.

1. Objectives
A. Classify the functions
of the kidney to the human
body.
B. Trace the process
through which urine is
produced.

3. What you need:
•Funnel or improvised
funnel using half of the
plastic bottle
•Filter paper, scissors,
flour, salt, patis or soy
sauce, water, clean cup

4. What to do:
1. Form a cone with the filter
paper, then line the inside of
the tunnel or improvised
funnel (inverted upper part of
the bottle to form a filter.
2. Mix the water, soy sauce or
patis, ketchup, flour, salt & a
little amount of sand in a cup.
Stir slightly.

5. What to do:
3. Pour the mixture into the
funnel or improvise filtering
device.
4. Observe what happen.
5. Record your observation.

6. How often do
you urinate in a
day?

7. Have you asked
yourself where
our urine come
from?

8. What organ in
our body
produces urine?

9. What I Know What I Want to
Know
What I Learned
Fill up a KWL chart.

11. 1. What did you observe when you poured
the mixture into the filtering device?
2. Which body part can be represented by
the mixture?
3. What is the role of filter paper?
4. What can be represented by those that
did not pass through?
5. What role did the filter paper play in
relation to the functions of kidneys?

12. We will study the
body organ
responsible for
cleaning our blood
and how we can take
care of it.

13. Learning Task

14. Kidney

15. The kidneys are bean-shaped
paired organs which are about
four to five inches long and two
to three inches wide.

16. The right kidney is slightly lower
due to the presence of liver on the
right region of the body.

17. The kidneys remove
urea from the blood
through tiny filtering
units called
NEPHRONS.

18. - Is a single glomerulus (tangle of blood capillaries),
with its renal capsule, renal tube and blood
capillaries.
- Kidneys are made of thousands of nephrons.
- Each nephron begins in the cortex, loops down in
the medulla, back into the cortex, and then goes
down again through the medulla to the pelvis.
- In the pelvis the nephrons join up with the ureter

19. They are the
major organs
of the urinary
system. They
perform two
major
functions.

20. 1. They remove
liquid waste from
the blood in the
form of urine.
2.

21. 2. They keep a stable balance of
salts and other substances in
the blood and produce a
hormone that aids the
formation of blood cells.

22. The major
metabolic wastes
produced by our
body are filtered by
kidneys in the blood
like salts, water and
nitrogenous waste.

23. THE BLADDER STORES URINE
• The urine from all the nephrons flows into
the ureters which take it to the bladder.
• The bladder stores urine.
• When it is fulled, the sphincter muscle
opens and the urine flows along the
urethra and out of the body.

25. 1. What did you observe when you poured
the mixture into the filtering device?
Some particles/materials remained in
the filter paper. The filter paper/cloth
filters the mixture. Liquid passes
through the filter.
2. Which body part can be represented by
the mixture? The blood can be
represented by the mixture.

26. 3. What is the role of filter paper? It filters
the mixture. It separates coarse
materials from liquid materials.
4. What can be represented by those that
did not pass through? waste materials

27. 3. What is the role of filter paper? It filters
the mixture. It separates coarse
materials from liquid materials.
4. What can be represented by those that
did not pass through? waste materials
1. What role did the filter paper play in
relation to the functions of kidneys?

28. 3. What is the role of filter paper? It filters
the mixture. It separates coarse
materials from liquid materials.
4. What can be represented by those that
did not pass through? waste materials
5. What role did the filter paper play in
relation to the functions of kidneys?

29. 5. What role did the filter paper play in
relation to the functions of kidneys? The
filter paper is like the kidney. It filters or
removes the waste materials from our
blood.

30. Assessment

31. APPLICATION
(group activity)

32. 1. Describe the structure of kidneys.
2. What makes our right kidney slightly
lower than our left kidney?
3. What is the filtering unit of kidney?
4. What are the functions of the kidneys?
5. Kidneys remove body waste like urea
and ______?

33. 1. Describe the structure of kidneys. The
kidneys are bean-shaped paired
organs which are about four to five
inches long and two to three inches
wide.
2. What makes our right kidney slightly
lower than our left kidney? The right
kidney is slightly lower due to the
position of the liver on the
right region of the body.

34. 3. What is the filtering unit of kidney?
nephrons
4. What are the functions of the kidneys?
Kidneys remove liquid waste of the
body and keeps stable balance of
substances in the body
5. Kidneys remove body waste like urea
and ______? urine

35. EVALUATION

36. True or False:
1. Kidney are bean-shaped
paired organs.
2. The right kidney is
higher due to the presence
liver.

37. True or False:
3. The kidneys perform two
major functions.
4. The tiny filtering units is
called protons.
5. kidneys are bean-shaped
paired organ.

38. Answer:
1. True
2. False
3. True
4. False
5. True

39. ASSIGNMENT

40. What are the
ailments and
diseases related
to kidneys?

41. Shawie
Thank
You !!
Dr. Sharon Acaylar
Dapitan City Central

42. Shawie