Identify the correct pair of statements.
I. Functions of sieve tubes is controlled by nucleus of companion cells
II. Albuminous cells are present in angiosperms
III. In dicot root, the vascular cambium is completely secondary in origin.
IV. Cylindrical meristems contribute to the formation of primary plant body.
Identify the correct pair of statements.
I. Functions of sieve tubes is controlled by nucleus of companion cells
II. Albuminous cells are present in angiosperms
III. In dicot root, the vascular cambium is completely secondary in origin.
IV. Cylindrical meristems contribute to the formation of primary plant body.
The correct option is A I and III
I)Functions
of sieve tubes is controlled by nucleus of companion cells – True, because in
the sieve tubes are enucleated living cells. So the functions of sieve tubes
are controlled by nucleus of the companion cells.
II)Albuminous
cells are present in angiosperms – False, because in the phloem of angiosperms
companion cells are present, not albuminous cells.
III)In
dicot root, the vascular cambium is completely secondary in origin – True, because,
in dicot root, vascular cambium is formed partly from pericycle and partly from
conjunctive tissue. So it is completely secondary in origin.
IV)Cylindrical
meristems contribute to the formation of primary plant body – False, because cylindrical
meristems means secondary meristems. These are involved in the formation of
secondary tissues, responsible for secondary growth.
So,
the correct option is ‘I and III’.
I)Functions of sieve tubes is controlled by nucleus of companion cells – True, because in the sieve tubes are enucleated living cells. So the functions of sieve tubes are controlled by nucleus of the companion cells.
II)Albuminous cells are present in angiosperms – False, because in the phloem of angiosperms companion cells are present, not albuminous cells.
III)In dicot root, the vascular cambium is completely secondary in origin – True, because, in dicot root, vascular cambium is formed partly from pericycle and partly from conjunctive tissue. So it is completely secondary in origin.
IV)Cylindrical meristems contribute to the formation of primary plant body – False, because cylindrical meristems means secondary meristems. These are involved in the formation of secondary tissues, responsible for secondary growth.
So, the correct option is ‘I and III’.
