Other Forms of Excretion

Q.

What is the main function of the human body?

Q.

Which of the following organs do not excrete nitrogenous waste products?

1. Lungs

2. Skin

3. Kidneys

4. Liver

Q.

Why is the removal of faeces or undigested food from the body not an example of excretion?

Q. In ornithine cycle which of the following wastes are removed from the blood?

1. $C{O}_2$ and urea
2. Urea and urine
3. $C{O}_2$ and ammonia
4. Ammonia and urea

Q.

Which of these are removed from the body through the skin?

1. Water

2. Salts

3. Urea

4. Carbon dioxide

Q.

Which of the following is not an excretory substance in humans?

1. Bile pigments

2. Carbon dioxide

3. Excess water

4. Ammonia

Q.

Which of the following is not an excretory product in animals?

1. Urea

2. Uric acid

3. Ammonia

4. Hydrochloric acid

Q.

Question 72
How do leaves of plants help in excretion?

Q.

Secretion is active and excretion is passive in nature because-

1. Valine replacing glutamine
2. Phenylalanine
3. Tyrosine
4. Homogentisic acid

Q.

What are excretory organs? Give two examples.

Q.

Which of the following is a method by which plants excrete wastes?

1. Lost as leaves

2. Transpiration

3. Photosynthesis

4. All of the above

Q.

Urea is formed in _______.

Q.

Lungs excrete carbon dioxide as a result of

1. Expiration

2. Cellular respiration

3. Inspiration

4. Ingestion

Q.

Sebaceous glands secrete:

1. Sweat
2. Uric acid
3. Water
4. Sebum

Q. Fill in the blanks appropriately Organ Excretory wastes
a. Kidneys ___________________
b. Lungs _____________________
c. Liver ______________________
d. Skin _______________________

Q.

In which organ urea is formed?

Q.

Bilirubin is excreted along with

1. Urine
2. Faeces
3. Sweat
4. Vitamins

Q.

Name the organ where urea is produced.

Q.

Which of the following method is used by plants to excrete wastes?

1. Transpiration

2. Lost as leaves

3. Photosynthesis

4. All of the above

Q. The digestive system consists of digestive tract and _________ .

1. associated glands
2. urinary tract
3. lympatic vessels
4. respiratory tract

Q. What kind of wastes are generally excreted out from various organs?

Q.

Lungs are called the accessory excretory organs.

1. True
2. False

Q.

Animals do not excrete their wastes in which of the following forms?

1. Hydrochloric acid

2. Uric acid

3. Urea

4. Ammonia

Q. Match the excretory organs to their respective functions.

Q.

Which of the following is not an excretory organ?

1. Kidneys

2. Skin

3. Lungs

4. Heart

Q. function of lecithin in alveolus

Q. Give the biological/technical term for the following

(ii) The removal of nitrogenous wastes from the body.

Q. During exhalation, the diaphragm ______ .

1. contracts and goes up
2. contracts and moves down
3. relaxes and goes up
4. relaxes and moves down

Q. Apart from kidneys, excretion is also carried by

1. Skin
2. Large intestine
3. Liver
4. Both A and B

Q.

Which of the following is an excretory product in animals?

1. Uric acid

2. Urea

3. Ammonia

4. Hydrochloric acid