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Question
Study the diagram given alongside and then answer the question that follow:
What is the technical term given to the process occurring in 2 and 3? Briefly describe the process.
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Solution
The process occurring in 2 and 3 is known as ultrafiltration.
In the glomerulus, the blood flows under high pressure because of the narrow lumen of the capillary network of the glomerulus. This forces most of the components (both waste and useable materials) of the blood out of the capillaries. This process of the filtration of blood under high pressure in the Bowman's capsule is known as ultrafiltration.
RELATED QUESTIONS
The given diagram represents a nephron and its blood supply. Study the diagram and answer the following questions:
(i) Label parts 1, 2, 3 and 4.
(ii) State the reason for the high hydrostatic pressure in the glomerulus.
(iii) Name the blood vessel which contains the least amount of urea in this diagram.
(iv) Name the two main stages of urine formation.
(v) Name the part of the nephron which lies in the renal medulla.
The diagram given below is that of a structure present in a human kidney.
Study the same and answer the questions that follow:
1) Name the structure represented in the diagram
2) What is the liquid entering part ‘1’ called?
Name two substances present in this liquid that are reabsorbed in the tubule.
3) What is the fluid that comes to part ‘2’ called?
Name the main nitrogenous waste in it.
4) Mention the three main steps involved in the formation of the fluid mentioned in (iii) above
5) Name the substance which may be present in the fluid in part ‘2’ if a person suffers from Diabetes mellitus.
What does the bladder in our body do?
Answer the following in short.
Define transpiration in plants.
Given below is a highly simplified diagram of the human kidney cut open longitudinally. Answer the question that follow:
Why does the cortex of the kidney show a dotted appearance?
Answer the following question:
Explain the human excretory system with the help of a suitable diagram.
Identify the INCORRECT match.
In a person the tubule part of the nephron is not functioning at all. What will its effect be on urine formation?
Name the organs that store and release the urine.
An organ that produces urea:
