The cell shown in the given diagram:
 
1. is a bone marrow stem cells committed to produce RBCs
2. is the megakaryocyte
3. is the commonest WBC and is phagocytic
4. is responsible for acquired immunity in humans
Subtopic:  Blood: White Blood Cells |
 82%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.

Match the following columns and select the correct option.

Column I Column II
(a) Eosinophils (i) Immune response
(b) Basophils (ii) Phagocytosis
(c) Neutrophils (iii) Release histaminase, destructive enzymes
(d) Lymphocytes (iv) Release granules containing histamine
Options:
(a) (b) (c) (d)
1. (iv) (i) (ii) (iii)
2. (i) (ii) (iv) (iii)
3. (ii) (i) (iii) (iv)
4. (iii) (iv) (ii) (i)
Subtopic:  Blood: General Description & RBC: Part 2 | Blood: White Blood Cells | Blood: General Description & RBC |
 68%
From NCERT
NEET - 2020
Please attempt this question first.
Hints
Please attempt this question first.

Histamine in the blood is secreted by:

1. Mast cells 2. Macrophages
3. Eosinophils 4. Basophils
Subtopic:  Blood: White Blood Cells |
 64%
From NCERT

To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.

Hints

To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.


advertisementadvertisement

Select the option having all the correct characteristics :

Structure Percentage Function
1.    0.3-0.5 Phagocytic
2.   0.5-1.0 Secrete histamine
3.    30-40 Defense against parasites
4.   30-40 Allergic reactions
Subtopic:  Blood: White Blood Cells |
 73%
From NCERT

To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.

Hints

To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.