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The pH of human urine is approximately

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Important Questions on Excretory Products and Their Elimination

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MTG OBJECTIVE NCERT AT YOUR FINGERTIPS BIOLOGY CLASS XI + XII>Chapter 19 - Excretory Products and Their Elimination>NCERT EXEMPLAR PROBLEMS>Q 5
Which one of the following statements is incorrect?
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MTG OBJECTIVE NCERT AT YOUR FINGERTIPS BIOLOGY CLASS XI + XII>Chapter 19 - Excretory Products and Their Elimination>NCERT EXEMPLAR PROBLEMS>Q 6
Which of the following pairs is wrong?
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MTG OBJECTIVE NCERT AT YOUR FINGERTIPS BIOLOGY CLASS XI + XII>Chapter 19 - Excretory Products and Their Elimination>NCERT EXEMPLAR PROBLEMS>Q 7
Which one of the following statements is incorrect?
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MTG OBJECTIVE NCERT AT YOUR FINGERTIPS BIOLOGY CLASS XI + XII>Chapter 19 - Excretory Products and Their Elimination>NCERT EXEMPLAR PROBLEMS>Q 8
The condition of accumulation of urea in the blood is termed as
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MTG OBJECTIVE NCERT AT YOUR FINGERTIPS BIOLOGY CLASS XI + XII>Chapter 19 - Excretory Products and Their Elimination>NCERT EXEMPLAR PROBLEMS>Q 9
Which one of the following is also known as antidiuretic hormone?
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MTG OBJECTIVE NCERT AT YOUR FINGERTIPS BIOLOGY CLASS XI + XII>Chapter 19 - Excretory Products and Their Elimination>NCERT EXEMPLAR PROBLEMS>Q 10

Match the terms given in column I with their physiological processes given in column II and choose the correct answer.

Column I Column II
A. Proximal convoluted tubule (i) Formation of concentrated urine
B. Distal convoluted tubule  (ii) Filtration of blood
C. Henle's loop (iii) Reabsorption of 70-80 % of electrolytes
D. Counter current mechanism (iv) Ionic balance
E. Renal corpuscle  (v) Maintenance of concentration gradient in medulla
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MTG OBJECTIVE NCERT AT YOUR FINGERTIPS BIOLOGY CLASS XI + XII>Chapter 19 - Excretory Products and Their Elimination>NCERT EXEMPLAR PROBLEMS>Q 11

Match the abnormal conditions given in Column A with their explanations given in Column A and choose the correct option.

Column A                                 Column B
A. Glycosuria                           (i) Accumulation of uric acid in joints
B. Renal calculi                       (ii) Inflammation in glomeruli
C. Glomerular nephritis           (iii) Mass of crystallised salts within the kidney
D. Gout                                    (iv) Presence of glucose in urine

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MTG OBJECTIVE NCERT AT YOUR FINGERTIPS BIOLOGY CLASS XI + XII>Chapter 19 - Excretory Products and Their Elimination>NCERT EXEMPLAR PROBLEMS>Q 12
We can produce concentrated/dilute urine. This is facilitated by a special mechanism. Identify the mechanism.