Question

Consider the following statements:
Statement-I: Leucocytes are capable of reaching extra vascular areas by diapedesis.
Statement-II: Slight increase of WBC count is called leukemia.
The correct answer is

• A. Both statements I and II are true
• B. Both statements I and II are false
• C. Statement I is true, but statement II is false
• D. Statement I is false, but statement II is true

Hint:

{Leukocytosis:} Temporary increase (infection). {Leukemia:} Pathological/Cancerous increase. {Leukopenia:} Decrease in WBC count.

Answer 1

The Correct Option is C

Step 1: Analyze Statement I:
Diapedesis is the process by which White Blood Cells (Leucocytes) squeeze through the narrow spaces between the capillary endothelial cells to enter tissues (extra-vascular areas) to fight infection. This is a key property of WBCs.
Status: True.
Step 2: Analyze Statement II:
Leukemia is a type of blood cancer characterized by an abnormal and uncontrolled (massive) increase in the number of immature WBCs. A slight increase in WBC count (usually in response to infection) is called Leukocytosis, not leukemia.
Status: False.
Step 3: Final Answer:
Statement I is True, Statement II is False. Option (C).