MCQ
Middle lamella is made up of
- ACellulose
- BSuberin
- ✓Calcium and magnesium pectate
- DLignin
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(1)Assimilatory roots — Photosynthesis
(2)Fasciculated roots — Food storage
(3)Stilt root — Mechanical support
(4)Sucking root — Absorption of moisture from the air
Select the correct answer -
$(I)$ Nucleus of the functional megaspore divides meiotically to form two nuclei.
$(II)$ After $8$ nucleate stage, cell walls are laid down leading to organization of typical female gametophyte
$(III)$ The egg apparatus, consists of two synergids and one egg cell.
$(IV)$ Three cells are at the chalaza end are called antipodal cells.