Excretory System

Q.

Which organ in our body is responsible for purification of blood? How? [2 MARKS]

Q.

What is the lymphatic system?

Q.

Write short notes on hemodialysis.

Q.

Urine contains nitrogenous waste in the form of __________.

Q.

What is the pH of urine?

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

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

Q.

The process of excreting unused or undigested material through the anus is known as __________.

1. ingestion

2. egestion

3. assimilation

4. digestion

Q.

What Is The External And Internal Urethral Sphincter?

Q. what are the different forms of excretion by living organisms

Q.

Arrange the following statements in the correct order in which they occur during the formation and removal of urine in human beings. (a) Ureters carry urine to the urinary bladder. (b) Wastes dissolved in water are filtered out as urine in the kidneys. (c) Urine stored in the urinary bladder is passed out through the urinary opening at the end of the urethra. (d) Blood containing useful and harmful substances reaches the kidneys for filtration. (e) Useful substances are absorbed back into the blood.

Q.

Draw the excretory system in human beings and label the following organs of the excretory system which perform the following functions:

(i) from urine

(ii) is a long tube that collects urine from the kidney.

(iii) store urine until it is passed out.

Q. Synthesis of urea takes place in the ________.

1. Kidney
2. Liver
3. Pancreas
4. Small Intestine

Q.

Can dialysis be stopped? What is another alternative for dialysis?

Q. is removal of metabolic wastes from the body.

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

Q. Write a short note on excretion in fishes. [2 marks]

Q.

Kidneys are made up of number of filters called __________ ( nephrons / glomerulus ).

Q.

what are the two differences between the blood flowing through renal artery and renal vein?

Q.

The major and primary functions of the digestive system is to transfer_____ from the environment into our bodies.

1. Nutrients

2. Electrolytes

3. All of the above

4. Water

Q. <!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}--> Define holozoic nutrition. Briefly explain the steps involved in the holozoic nutrition in amoeba

Q.

Give a biological reason for the following statement:

There is frequent urination in winter than in summer.

Q.

Part of the excretory system that stores urine is

1. ureter

2. urethra

3. urinary bladder

4. cortex

Q.

Some parts of the human excretory system are labeled using alphabets. Identify them with the alternatives given in the options.

1. X- Urethra, Y- Urinary bladder , Z- Kidney

2. X- Kidney, Y- Ureter, Z- Urethra

3. X- Urethra, Y- Urinary bladder, Z- ureter

4. X- Ureter, Y- Urinary bladder, Z- Urethra

Q.

A young infant may be feeding entirely on mother's milk, which is white in colour but the stools, which the infant passes out, is quite yellowish. This yellow colour is due to

1. Intestinal juice

2. Bile pigments passed through bile juice

3. Undigested milk protein casein

4. Pancreatic juice poured into duodenum

Q. Name the process and the organ which helps in removing the following wastes from the body.
(a) Carbon dioxide
(b) Undigested food
(c) Urine
(d) Sweat

Q.

Different type of urine excretes by organisms and their functions

Q.

Statement 1: The remaining liquid from the kidneys, along with waste such as urea, uric acid etc. is called urine.

Statement 2: Urine is collected in the urethra.

1. Statement 1 is false and statement 2 is true

2. Statement 1 is true and statement 2 is false

3. Both the statements are false

4. Both the statements are true

Q. In fish ammonia is generally excreted through which of the following?

1. Kidneys
2. Gills
3. Lungs
4. Skin

Q.

____ are the principal organs of excretion consisting of nephrons and associated tissue.

1. Lungs

2. Kidneys

3. Heart

4. Stomach

Q.

Which of the following is an excretory product in animals?

1. Uric acid

2. Urea

3. Ammonia

4. Hydrochloric acid

Q.

A neuron is the unit of kidney consisting of the malpighian corpuscle and renal tubule.

1. False

2. True