Please refer to Assignments Class 11 Biology Excretory Products and Their Elimination Chapter 19 with solved questions and answers. We have provided Class 11 Biology Assignments for all chapters on our website. These problems and solutions for Chapter 19 Excretory Products and Their Elimination Class 11 Biology have been prepared as per the latest syllabus and books issued for the current academic year. Learn these solved important questions to get more marks in your class tests and examinations.
Excretory Products and Their Elimination Assignments Class 11 Biology
Question. Which substances are reabsorped in collecting duct?
(a) Glucose, Water
(b) Water only
(c) H+, K+ ions
(d) Water, H+ ions
Answer
B
Question. Find out the correct statement :
(a) An increase in body fluid volume, stimulate the ADH release.
(b) A fall in glomerular blood flow can activate the JG cells to release renin.
(c) Angiotensin-II, being a powerful vasodialator, decreases the glomerular blood pressure.
(d) Decrease in blood flow to the atria of the heart can cause the release of atrial natriuretic factor(ANF)
Answer
B
Question. Conditional reabsorption of Na+ and water takes place in :
(a) PCT
(b) DCT
(c) Henle’s loop
(d) Bowman’s capsule
Answer
B
Question. Which of the following plays a significant role in producing concentrated urine?
(a) PCT and Henle’s loop
(b) Henle’s loop and Vasa recta
(c) Collecting duct and DCT
(d) Collecting duct and PCT
Answer
B
Question. Which is not correctly matched ?
(a) Malpighian tubules – Cockroaches
(b) Antennal glands – Planaria
(c) Nephridia – Earthworm
(d) Protonephridia – Amphioxus
Answer
B
Question. In which part of nephron electrolytes are not reabsorped?
(a) PCT
(b) DCT
(c) Descending limb of Henle’s loop
(d) Ascending limb of Henle’s loop
Answer
C
