Question 1
A common characteristic feature of plant sieve tube cells and most of mammalian erythrocytes is
(a) absence of mitochondria (b) presence of cell wall
(c) presence of haemoglobin (d) absence of nucleus
Question 1
A common characteristic feature of plant sieve tube cells and most of mammalian erythrocytes is
(a) absence of mitochondria (b) presence of cell wall
(c) presence of haemoglobin (d) absence of nucleus
(d) The common characteristic feature of plant sieve tube and mammalian erythrocyte is the absence of nucleus. Sieve tubes are the component of philem and do not contain nucleus. Similarly, erythrocytes in mammalian cell also do not posses nucleus. Erythrocytes are the RBCs which helps in gaseous exchange.
Mitochondria is absent in sieve tube cells. Pigment haemoglobin is present in mammalian erythrocytes but not in sieve tube cells. Cell was made of cellulose and is present in all plant cells, and thus absent in erythrocytes.
(d) The common characteristic feature of plant sieve tube and mammalian erythrocyte is the absence of nucleus. Sieve tubes are the component of philem and do not contain nucleus. Similarly, erythrocytes in mammalian cell also do not posses nucleus. Erythrocytes are the RBCs which helps in gaseous exchange.
Mitochondria is absent in sieve tube cells. Pigment haemoglobin is present in mammalian erythrocytes but not in sieve tube cells. Cell was made of cellulose and is present in all plant cells, and thus absent in erythrocytes.
