Advertisements
Advertisements
Question
Explain Selective reabsorption
Advertisements
Solution 1
Selective reabsorption:
The glomerular filtrate entering the renal tubule contains many useful substances. Hence, as the filtrate passes down the tubule, water and other substances required by the body are reabsorbed. This reabsorption occurs only to the extent that the normal concentration of the blood is undisturbed. This entire process is called selective reabsorption.
Solution 2
Selective reabsorption:
The glomerular filtrate entering the renal tubule contains many useful substances. Hence, as the filtrate passes down the tubule, water and other substances required by the body are reabsorbed. This reabsorption occurs only to the extent that the normal concentration of the blood is undisturbed. This entire process is called selective reabsorption.
Solution 3
Selective reabsorption:
The glomerular filtrate entering the renal tubule contains many useful substances. Hence, as the filtrate passes down the tubule, water and other substances required by the body are reabsorbed. This reabsorption occurs only to the extent that the normal concentration of the blood is undisturbed. This entire process is called selective reabsorption.
APPEARS IN
RELATED QUESTIONS
What gaseous waste products are excreted by plants?
Where is the dirty blood in our body filtered?
Name the two parts of a plant through which its gaseous waste products are released into the air.
Fill in the following blank with suitable word:
Gums and resins are the .......... products of plants.
Given below is a simplified diagram of the human kidney cut open longitudinally. Answer the questions that follow.
![]() |
- Define excretion.
- Why does the cortex of the kidney show a dotted appearance?
- Why does the medulla of the kidney show a striped appearance?
- Write two differences in the composition of the blood flowing through the blood vessels 'A' and 'B'.
Choose the correct answer:
The smallest functional unit of the kidney is ____________
Given below is a diagram of a human kidney, cut open longitudinally. Answer the following:

(i) Give definition of excretion.
(ii) Name the unit of kidney.
(iii) Why does the cortex of kidney show dotted appearance?
(iv) List the functions of the kidney.
Write the functional activity of the following structure: Henle’s loop
Choose the correct option.
Which one of the following organisms excrete waste through nephridia?
Answer the following question.
Why do we get bad breath after eating garlic or raw onion?

