(A) In humans,mature erythrocytes (Red Blood Cells) are enucleated,meaning they lack a nucleus. This adaptation allows more space for hemoglobin,which

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(A) In humans,mature erythrocytes (Red Blood Cells) are enucleated,meaning they lack a nucleus. This adaptation allows more space for hemoglobin,which is essential for efficient oxygen transport. Neutrophils,lymphocytes,and monocytes are types of leukocytes (White Blood Cells) and all possess a nucleus.

Class 11 Biology Body Fluids and Circulations Blood and Blood Group

Easy

Which of the following blood cells in humans is known to be enucleated (lacking a nucleus)?

A
Erythrocyte
B
Neutrophil
C
Lymphocyte
D
Monocyte

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Class 11 Questions

Class 11

Biology Questions

Chapter

Body Fluids and Circulations

Subtopic

Blood and Blood Group

The $pH$ of human blood varies between

Easy

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Mammals have biconcave $RBCs$. The physiological advantage of this shape is:

Medium

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Select the $CORRECT$ match:
Column-$I$ Column-$II$ Column-$III$
$i$. Monocyte $d$. Kidney shaped nucleus $n$. Phagocytic
$ii$. Lymphocyte $a$. Large round nucleus $o$. Produce antibodies
$iii$. Basophil $b$. Twisted nucleus $m$. Release heparin
$iv$. Eosinophil $c$. Bilobed nucleus $l$. Antihistamine property

Column-$I$	Column-$II$	Column-$III$
$i$. Monocyte	$d$. Kidney shaped nucleus	$n$. Phagocytic
$ii$. Lymphocyte	$a$. Large round nucleus	$o$. Produce antibodies
$iii$. Basophil	$b$. Twisted nucleus	$m$. Release heparin
$iv$. Eosinophil	$c$. Bilobed nucleus	$l$. Antihistamine property