Tag: soldiers of defense

Quizzes (22) Questions (159)

Questions Related to soldiers of defense

Multiple choice biology soldiers of defense human lymphatic system lymph and its function lymph and tissue fluid

The main difference in the blood and lymph is

  1. Absence of RBC

  2. Absence of WBC

  3. Number of WBC is less in blood

  4. None of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Blood is a special connective tissue consisting of a fluid matrix, plasma, and formed elements. As the blood passes through the capillaries in tissues, some water along with many small water-soluble substances move out into the spaces between the cells of tissues leaving the larger proteins and most of the formed elements (RBC, WBC and Platelets) in the blood vessels. This fluid released out is called the interstitial fluid or tissue fluid. An elaborate network of vessels called the lymphatic system collects this fluid and drains it back to the major veins. The fluid present in the lymphatic system is called the lymph. WBC are present in lymph. Hence the main difference in blood and lymph is the absence of RBC.

So, the correct answer is 'Absence of RBC'.

Multiple choice biology soldiers of defense human lymphatic system lymph and its function lymph and tissue fluid

Spaces surrounding the trabeculae of spleen are composed of.

  1. White pulp

  2. Red pulp

  3. White pulp and red pulp

  4. None of the above
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The spleen contains white pulp (lymphoid tissue) and red pulp (vascular tissue). The trabeculae provide structural support, and the spaces between them are occupied by these two types of pulp.

Multiple choice biology soldiers of defense human lymphatic system lymph and its function lymph and tissue fluid

Lymph

  1. Transports $O _2$ to brain
  2. Transports $CO _2$ to lungs

  3. Returns interstitial fluid to blood

  4. Returns RBCs and WBCs to lymph nodes
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
Lymph is a fluid connective tissue that contains plasma and WBCs (mostly lymphocytes). It lacks RBCs and contains more WBCs and proteins. It is colourless and contains very small amount of nutrients and oxygen. It is known as middle man of the body. Its function is to return the interstitial fluid and proteins back to the blood.
So, the correct answer is 'Return interstitial fluid to the blood'.
Multiple choice biology soldiers of defense human lymphatic system lymph and its function lymph and tissue fluid

Lymph is colourless because

  1. WBC are absent

  2. WBC are present

  3. Haemoglobin is absent

  4. RBC are absent
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
  • Lymph is the part of the lymphatic system, which is a colourless watery fluid which contains lymphocytes and proteins.
  • They are colourless because they lack red blood cells. 
  • The red blood cells contain haemoglobin protein which gives a red colour to the blood. So, the correct answer is 'RBC are absent'.