Question

A common characteristic feature of plant sieve tube cells and most of mammalian erythrocytes is ______.

Options

• Absence of mitochondria

• Presence of cell wall

• Presence of haemoglobin

• Absence of nucleus

Answer 1

A common characteristic feature of plant sieve tube cells and most of mammalian erythrocytes is absence of nucleus.

Explanation:

A common characteristic feature of plant sieve tube cells and most mammalian erythrocytes is absence of a nucleus as due to absence of a nucleus gives erythrocytes more space for binding more Hb. On the other side lack of cell organelles in the sieve tube provide extra space to accommodate more water and ensure fast transportation.