Excretory System

Q.

Which part of the excretory system stores the urine before excretion?

1. Ureters

2. Kidney

3. Bladder

4. Urethra

Q. Arrange the following in the correct sequence:
1. Urine enters the ureter.
2. Urine is stored in the urinary bladder.
3. Some substances in the initial filtrate are selectively reabsorbed.

1. 1 → 2 → 3

2. 2 → 3 → 1

3. 3 → 1 → 2

4. 3 → 2 → 1

Q. The process during which an organism obtains and utilises food is known as ________ .

1. digestion
2. excretion
3. respiration
4. nutrition

Q. Sweat glands in the skin are responsible for secretion of sweat.

1. False
2. True

Q. _______ is the process of removing unwanted waste products from our body.

Q. Explain the structure of excretory system with a neat labelled diagram. (4 marks)

Q. Contraction and relaxation of muscles in the lead to urination.

1. kidney
2. ureter
3. urinary bladder
4. stomach

Q. The process of removal of faecal matter from the body through the anus is known as _________ .

1. assimilation
2. ingestion
3. egestion
4. absorption

Q. Which of the following organs do not come under the alimentary canal?

1. Buccal cavity
2. Kidney
3. Stomach
4. Small intestine

Q. The process during which an organism obtains and utilises food is known as ________ .

1. respiration
2. nutrition
3. digestion
4. excretion

Q. Excretion is the

1. transport of nutrients to all the cells
2. the process of obtaining energy
3. breakdown of nutrients in cells
4. removal of waste materials

Q. Pair up the wastes with the process by which it is removed.

1. Urea
2. Undigested food
3. Carbon dioxide
4. Urination
5. Defecation
6. Exhalation

Q. The process of removal of faecal matter from the body through the anus is known as _________ .

1. assimilation
2. ingestion
3. egestion
4. absorption

Q. Carbon dioxide is a waste byproduct of cellular respiration. This is removed out of the body by the .

1. lungs
2. kidney
3. heart
4. skin

Q. is removal of metabolic wastes from the body.

1. Excretion
2. Digestion
3. Egestion
4. Respiration

Q. Excretion is the

1. transport of nutrients to all the cells
2. the process of obtaining energy
3. breakdown of nutrients in cells
4. removal of waste materials