Question

Write one specific function of each of the following organs in relation to excretion in human beings: (i) Renal Artery (ii) Urethra (iii) Glomerulus (iv) Tubular part of nephron

June 19, 2025

Answer

(i) Renal Artery – Brings oxygenated blood with waste (like urea) to kidneys

(ii) Urethra – Removes urine from the body

(iii) Glomerulus – Filters blood in nephron

(iv) Tubular part – Reabsorbs useful substances and secretes waste into urine

💡 Some Related Questions

(a) Write the function of the following in the human alimentary canal:

Saliva

HCI in the stomach

Bile juice

Villi

(b) Write one function for each of the following enzymes:

Pepsin

Lipase

What causes the movement of food inside the alimentary canal in human beings?

Name an enzyme present in pancreatic juice.

(A) Write the correct sequence of steps followed during journey of oxygen rich blood from lungs to various organs of human body. (B) What happens when the system of blood vessels develop a leak?

(a) Why is there a difference in the rate of breathing between aquatic organisms and terrestrial organisms? Explain. (b) Draw a diagram of the human respiratory system and label it – the pharynx, trachea, lungs, diaphragm and alveolar sac on it.

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(c) Why is the small intestine in herbivores longer than in carnivores?
(d) What will happen if mucus is not secreted by the gastric glands?

(a) Name the organs that form the excretory system in human beings. (b) Describe in brief how urine is produced in the human body.

(a) Describe the structure and function of the basic filtering unit of the kidney. (b) List two factors on which the reabsorption of water from urine depends.

(a) “Blood circulation in fishes is different from the blood circulation in human beings”. Justify the statement.
(b) Describe “blood circulation” in human beings.

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(e) Veins have valves, whereas arteries do not.