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Biology - 38.3 Excretory System

Total questions: 12

Worksheet time: 6mins

Name
Class
Date
1.

Which part of the digestive system eliminates solid wastes from the human body?

a)

kidneys

b)

liver

c)

pharynx

d)

rectum

2.

Kidney's main job

a)

store urine

b)

absorb nutrients

c)

absorb liquid from solid waste

d)

filter blood

3.

Nitrogen containing waste product of protein

hint: main component of urine

a)

Bile

b)

HCl

c)

Urea

d)

Glucose

4.

Which of the following does a healthy kidney NOT remove from blood?

a)

excess water

b)

red blood cells

c)

excess salts

d)

urea

5.

How many kidneys do mammals have?

a)

1

b)

2

c)

3

d)

4

6.

Where is urea created?

a)

liver

b)

kidneys

c)

stomach

d)

all of the above

7.

What is NOT a function of the kidneys

a)

remove waste from blood

b)

remove excess water from blood

c)

regulate pH

d)

absorb nutrients from blood

8.

Correct path of urine in body?

a)

bladder -> urethra -> kidneys

b)

kidneys -> ureters -> bladder

c)

liver -> blood -> kidneys -> bladder

d)

kidneys -> bladder -> ureters

9.

What organ allows us to exhale CO2 from body?

a)

kidneys

b)

lungs

c)

liver

d)

rectum

10.

Which of the following excreted from sweat glands in the skin?

a)

water

b)

salts

c)

urea

d)

all of the above

11.

(MCAS) Besides producing cholesterol and bile, which of the following is a function of the liver?

a)

digesting fiber

b)

making red blood cells

c)

removing toxins from blood

d)

storing stomach contents for digestion

12.

(MCAS) A certain disease causes swollen kidneys and affects their ability to function properly.

Which of the following most likely occurs in the body as a result of this disease?

a)

Nervous system functioning increases.

b)

Nitrogenous waste builds up in the blood.

c)

Other body organs do the work of the kidneys.

d)

Hormones are transported by the muscular system.