Anugrah (28070) biologi

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EXCRETORY SYSTEM

Activity 7.1Objective

To know the smell of ammonia from the decomposition of urea in urine.

Devices and materials

Urine Measuring glass Reaction tube Tube pincher Spiritus lamp

Working Procedures

Put in 1 ml of urine into reaction tube Heat by using spiritus lamp Smell the heated urine

Questions

Do by this activity, you smell ammonia the (stench of urine smell) ? Showing what process is the smell of ammonia in heated urine ?

Conclusion

Make the conclusion of this activity !


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Activity 7.2

Objective

Checking the presence or not albumin in urine

Devices and materials

Urine Dense nitrate acid Reaction tube Measuring glass Dropping pipette

Working Procedures

Put in 25 ml of dense nitrate acid into the reaction tube. Slope that reaction tube than drop urine, 2-3 drops by using pipette

slowly so urine goes down passing through along tube wall.

Observe what is happening. If urine contains albumin will be seen thepresence of white colored ring that is found in urine contact region and

nitric acid.

Questions

Is there relationship between high albumin level in urine with someones

health ? Explain !Conclusion

Make the conclusion of this activity !


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Exercise

1. Matter discharging process by gland cell that produces juice (either hormone

or enzyme) is called .

A. Defecation

B. Absorption

C. Filtration

D. Excretion

E. Secretion

2. Excretion is discharging process of metabolism waste that is not used

anymore. Organs that make up excretory system are .

A. Lung, kidney, skin, and liver

B. Large intestine, lung, kidney and pancreas

C. Kidney, liver, skin and pancreas

D. Small intestine, kidney, skin, and lung

E. Pancreas, liver, lung, and small intestine

3. Below is the figure of human skin secretion with its composition. The part of

skin that has role to do excretion is shown by the figure of number

A. 1

B. 2

C. 3

D. 4

E. 5


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4. Consider the figure of nephron in the below !

Part that will absorb again element that still useful, then produced secondary

urine is shown by the number ..

A. 1, 2, and 3

B. 3, 4, and 5

C. 4, 5, and 6

D. 5, 6, and 7

E. 6, 7, and 8

5. Which pair is suitable between organ and substance it produces ?

Organ Substance Produced

A. Lung H2O and urea

B. Skin Sweat and urobilin

C. Liver Urea and bilirubin

D. Large intestine Metal and urobilin

E. Kidney Sugar and mineral salt

6. Urea that is discharged from liver through blood to kidney is filtered by the

part of kidney is ..

A. Bowmans capsule

B. Tubulous concortus proksimal

C. Glomerulus

D. Tubula collectivus

E. Henle curve


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7. Consider the figure of nephiridium in the below !

Part with sign X has function to absorb metabolism waste. That part is called

nephron. Animal that has this organ ..

A. Taenia solium

B. Fasciola hepatica

C. Anchylostoma deudenale

D. Ascaris lumbricoides

E. Lumbricus terrestris

8. If urine discharged by someone contains red blood cell, this shows the

presence of inflammation in .

A. glomelurus

B. cortex

C. medulla

D. pelvis renalis

E. vesca urinaria

9. If the result of urine testing with biuret reagent is gotten violet color, it is

predicted there is damage in the part of kidney, that is part of

A. glomelurus

B. tubulus concortus proximal

C. tubulus consortus distal

D. Malphigian body

E. Henle curve


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10. The blood of pak mardis urine testing result obviously his urine contains

glucose. This shows the presence of kidney function disorder in the process

of

A. Secretion

B. Filtration

C. Reabsorption

D. Augmentation

E. Defecation


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Tugas biologi

Excretory system

(Sistem ekskresi)

D

I

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U

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Anugrah28070

Xi IPA III

Anugrah (28070) biologi

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