wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

The graph shows the enzymatic activity needed for excretion of urea. The graph depicts mode of excretion of frog which has changed from ............. to ........ in adult.
174934_c29d7f55e90347e58940d468679badcd.png

A
Uricotelism, ammonotelism
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
Ammonotelism, ureotelism
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
C
Ureotelism, ammonotelism
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
Ureotelism, uricotelism
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is B Ammonotelism, ureotelism
In aquatic animals ammonia is the main nitrogenous waste; and only about 10% of nitrogenous wastes are excreted as urea. Most amphibians are at least semi aquatic, and their mechanisms of osmoregulation are similar to those of freshwater fishes. They, too, produce large amounts of dilute urine. In its urine and through its skin, a frog can lose an amount of water equivalent to one third of its body weight in one day. Active transport of salt inward by special cells in the skin compensates for loss of salt through skin and in urine. In larval stage or tadpole stage frog excretes ammonia ie it is ammonotelic animal but a adult frog is terrestrial and changes to ureotelism ie excretes urea.

flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Reptilia
BIOLOGY
Watch in App
Join BYJU'S Learning Program
CrossIcon