EASY
11th West Bengal Board
IMPORTANT
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The primary excretory organs in human body are kidney, liver, lungs and skin because they excrete about 70% of total waste product formed in the body. 

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Important Questions on Excretory Products and their Elimination

EASY
11th West Bengal Board
IMPORTANT
A TEXT BOOK OF BIOLOGY CLASS 11>Chapter 17 - Excretory Products and their Elimination>EXERCISE>Q 2
Large intestine is the accessory excretory organ. 
MEDIUM
11th West Bengal Board
IMPORTANT
A TEXT BOOK OF BIOLOGY CLASS 11>Chapter 17 - Excretory Products and their Elimination>EXERCISE>Q 3
Sweat glands secrete sweat through which waste products are eliminated from the body
EASY
11th West Bengal Board
IMPORTANT
A TEXT BOOK OF BIOLOGY CLASS 11>Chapter 17 - Excretory Products and their Elimination>EXERCISE>Q 4
Salivary glands act as accessory excretory organs / glands.
EASY
11th West Bengal Board
IMPORTANT
A TEXT BOOK OF BIOLOGY CLASS 11>Chapter 17 - Excretory Products and their Elimination>EXERCISE>Q 5
A very toxic products formed during catabolism of protein is ammonia which is excreted as urea that is several times less toxic.
EASY
11th West Bengal Board
IMPORTANT
A TEXT BOOK OF BIOLOGY CLASS 11>Chapter 17 - Excretory Products and their Elimination>EXERCISE>Q 6
Urinary system of human being consists of two kidneys, two urethra, two urinary bladder and one ureter. 
MEDIUM
11th West Bengal Board
IMPORTANT
A TEXT BOOK OF BIOLOGY CLASS 11>Chapter 17 - Excretory Products and their Elimination>EXERCISE>Q 7
Internally each kidney has two parts, granular outer darker cortex and striated inner pale medulla.
MEDIUM
11th West Bengal Board
IMPORTANT
A TEXT BOOK OF BIOLOGY CLASS 11>Chapter 17 - Excretory Products and their Elimination>EXERCISE>Q 8
The renal tubular part of nephron consists of proximal convoluted tubule, Henle's loop, distal convoluted tubule and collecting tubule.
MEDIUM
11th West Bengal Board
IMPORTANT
A TEXT BOOK OF BIOLOGY CLASS 11>Chapter 17 - Excretory Products and their Elimination>EXERCISE>Q 9
 The total amount of filtrate formed in Bowman's capsule in 24 hours is 1.5 litres.