Chapter 8 : Excretory System - Frank Solutions for Class 10 Biology ICSE
Biology is one of the crucial subjects in ICSE Class 10. ICSE Class 10 Biology speaks about the cell as the basic unit of life, genes, and evolution and deals with how living organisms interact with the environment, including the behavior of living beings. TopperLearning is one of the premier online platforms which helps students of ICSE Class 10 to study various concepts in Biology.
Chapter 8 - Excretory System Excercise 97
Kidneys, skin and lungs are important excretory organs.
Its chief function is to regulate the concentration of water and soluble substances like sodium salts by filtering the blood, reabsorbing what is needed and excreting the rest as urine.
Chapter 8 - Excretory System Excercise 98
(i) Animals which excrete ammonia.
(ii) Animals which eliminate urea.
(iii) Animals which excrete uric acid.
(iv) Organ which produces urea.
(v) Functional unit of kidney.
(vi) Organ which stores urine.
(vii) Organ where ultrafiltration occurs.
(vi) Urinary Bladder.
(i) Proximal convoluted duct, loop of Henle, vein.
(ii) Kidney, ureter, heart
(iii) Urea, uric acid, haemoglobin.
(iv) Glomerulus, alveoli, bronchi.
(v) Renal fat, renal capsule, nerve.
(vi) Column of Bertini, minora calyces, brain.
(iii) The cortex of kidney shows dotted appearance because it contains numerous complex structures called nephrons.
(iv) Formation of urine and osmoregulation are important functions of kidney.
(i) Composition of extracellular fluid is regulated by
(a) kidney (b) brain
(c) lungs (d) thyroid
(ii) Uric acid is excreted by
(a) pigeon (b) frog
(c) rabbit (d) man
(iii) Presence of RBCs in urine is called
(a) pyuria (b) glycosuria
(c) haematuria (d) albuminuria
(iv) A condition of failure of kidney to form urea is called
(a) creatine (b) hematuria
(c) keturia (d) anuria
(v) What happens if one kidney is removed from the body of human being?
(a) Death due to poisoning (b) Uraemia and death
(c) Stoppage of urination (d) Nothing will happen
(vi) Orinithin cycle operates in
(a) liver (b) stomach
(c) pancreas (d) oral cavity
(vii) Physiologically urea is produced by the action of an enzyme
(a) uricose (b) urease
(c) arginase (d) none
(viii) Vitamin excreted through urine in mammals is
(a) vitamin A (b) vitamin C
(c) vitamin D (d) vitamin K
(ix) Excess proteins are converted into urea in
(a) lungs (b) liver
(c) kidneys (d) intestine
(x) The smallest functional unit of the kidney is
(a) glomerulus (b) Bowman's capsule
(c) nephron (d) collecting tubule
(xi) Narrow apex of pyramid in kidney is called
(a) pelvis (b) renal papilla
(c) column of Bertini (d) duct of Bellini
(ii) (a) pigeon
(iii) (c) haematuria
(iv) (d) anuria
(v) (d) Nothing will happen
(vi) (a) liver
(vii) (b) urease
(viii) (b) vitamin C
(ix) (b) liver
(x) (c) nephron
(xi) (b) renal papilla
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