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Question

Read the following differences between lymph and blood.

LymphBlood
(i)It consists of plasma and leucocytes only.It consists of plasma, leucocytes, erythrocytes and platelets only.
(ii)The concentration of glucose is higher in lymph.The concentration of glucose is less in blood.
(iii)Amount of metabolic wastes is normal.Amount of metabolic wastes is much more.
(iv)Its plasma has fewer proteins, calcium and phosphorus.Its plasma has more proteins, calcium and phosphorus.

Which of these differences is/are incorrect?


A
(i) and (iii)
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B
(ii) only
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C
(iii) only
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D
(ii) and (iv)
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Solution

The correct option is C (ii) only
  • The lymph is formed when the interstitial fluid is collected through lymph capillaries. It contains a variety of substances, including proteins, salts, glucose, fats, water, and white blood cells. 
  • Unlike blood, Lymph does not contain RBCs and platelets.
  • The composition of lymph varies a great deal, depending on where in your body it originated. In the lymphatic vessels of your arms and legs, lymph is clear and transparent, and its chemical composition is similar to blood plasma (the liquid portion of blood). 
  • However, lymph contains less protein, glucose, and metabolic waste than plasma.  
  • The blood is composed of RBC, WBC, and platelets scattered in plasma.
Hence, the correct answer is option B

Biology

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