Test Preparation on Excretion system - Biology Test Series for NEET - 2020
Kidney crystals are solid clusters of
Waste products of adenine and guanine (Purines) metabolism are excreted by man as
In man, the urea is mainly produced in
(a) Ornithine cycle is a cyclic process of urea formation
which operates in the mitochondria of liver cells and
has been studied by kreb’s and Henseleit.
Which one of the following blood vessels in mammals would
normally carry the largest amount of urea
(b) Since urea formation takes place in liver.
The body cells in cockroach discharge their nitrogenous
waste in the haemolymph mainly in the form of
Which one of the following characteristics is common both in humans and adult frogs
(d) Adult frog and human exhibit ureotelism because there
excretory waste product is urea.
Uric acid is the chief nitrogenous component of the excretory products of
Which of the following nitrogenous substance is highly toxic
Or
If liver from body is removed then which component of
blood increases
(d) The ammonia is highly toxic because it has high pH, So, it must either be metabolised or expelled immediately out of body, so its concentration remains low in the blood.
Aquatic reptiles are
(c) Ureotelic animals include mainly amphibians and mammals besides its annelids (earthworm) elasmo branch fishes (shark) and aquatic animals are ureotelic.
-
Check your progress:
 Right Ans |
 Wrong Ans |
 Not Attempted |