Sporopollenin an organic material is present in:
Structure of pollen grain:
The female gametophyte in angiosperm is:
Embryo sac: The female gametophyte of flowering plants, which produces the two female gametes – the egg cell and central cell – for double-fertilization by the two sperm cells of the male gametophyte (pollen grain).
What is the function of germ pore?
Male gametes in angiosperms are formed by the division of:
Generative cell which is a cell of the male gemetophyte or pollen grain in seed plants that divides to give rise directly or indirectly two sperms.
Embryo sac represents:
Hence, embryo sac represents megagametophyte.
Starting from the innermost part, the correct sequence of parts in an ovule are:
Starting from the innermost part, the correct sequence of parts in an ovule is egg, Embryosac, nucellus, integument. This sequence can be seen in following
A diagrammatic view of an ovule
In angiosperms, functional megaspore develops into:
In angiosperms or flowering plants, the megasporocyte produces a megaspore that develops into an embryo sac through two distinct processes.
Filiform apparatus is a characteristic feature of:
A synergid cell wall forms a highly thickened structure called the filiform apparatus at the micropylar end consisting of numerous finger-like projections into synergid cytoplasm. These synergid cells are necessary for pollen tube guidance in the ovule.
From among the sets of terms given below, identify those that are associated with the gynoecium.
Cucurbits and coconuts are examples of _______.
A plant having both reproductive organs in the same plant is known as monoecious plants. It may also be known as homothallic conditions. Dioecious plants are those which have only one reproductive organ, also known as unisexual plants. Another word for dioecious plants is heterothallic.