Question

Read the following differences between lymph and blood.

	Lymph	Blood
i.	It consists of plasma and leukocytes only.	It consists of plasma, erythrocytes, and platelets only.
ii.	The concentration of glucose is higher in the lymph.	The concentration of glucose is less in the blood.
iii.	The amount of metabolic wastes is normal.	The 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)
B. (ii) only
C. (iii) only
D. (ii) and (iv)

Answer 1

Hint: Blood travels across blood vessels, and lymph travels through lymphatic vessels. Gases, carbohydrates, and metabolic wastes are all transported by blood. The lymphatic pathway drains tissue fluid into the circulatory system. The primary distinction between blood and lymph is how they act in the body.

Complete answer:
When interstitial fluid is obtained via lymph capillaries, lymph is created. Proteins, salts, glucose, fats, water, and white blood cells are among the substances contained in them. Lymph, unlike blood, does not usually contain any red blood cells. The composition of lymph varies greatly depending on where it originated in your body. Lymph is smooth and visible in the lymphatic channels of the arms and legs, and its chemical structure is identical to that of blood plasma (the liquid portion of blood). Lymph, on the other hand, contains less protein than plasma.

- Option A: blood consists of RBC, WBC, plasma, and platelets. Statement I is incorrect. because fewer metabolic wastes are found in the lymph. statement (iii) is also incorrect.
- Option B: The concentration of sugar in lymph is greater. As plasma is squeezed out of capillaries at high hydrostatic pressure, the tissue fluid becomes more glucose-rich than blood. You are also right in stating that the glucose is absorbing the glucose for respiration. The assertion is right. As a result, choice B cannot be the correct one.
- Option C: Comments I and (iii) are both incorrect. As a result, this is the incorrect alternative.
- Option D: Lymph, on the other hand, contains less protein than plasma. The lymphatic system's primary function is to detoxify and dispose of metabolic waste. As a result, option D is incorrect.

Hence the correct answer is A. (I) and (iii).

Note: Lymphatic vascular activity is essential for both embryonic development and adult homeostasis, as shown by the fact that defects in lymphatic vessel growth and development (lymphangiogenesis) are linked to a growing list of human pathologies. Congenital lymphoedema syndromes, as well as Down, Noonan's, and Turner syndromes are synonymous with defects in fetal lymphangiogenesis that result in defective lymphatic vessels. The most serious disruptions in embryonic lymphatic vascular formation are likely to be fatal.