Question

Proximal end of the filament of stamen is attached to the
A. Anther
B. Connective
C. Placenta
D. Thalamus or petal

Answer 1

Hint: Flowers have various parts which have their definite function. Some of them are responsible for reproduction. The male and female gametophytes are important for sexual reproduction to occur. The many tissues in these parts support the fertilized embryo or ovule.

Complete answer:
Stamen is the reproductive male part of the plant which has filament that has the pollen. These pollens travel via the style to the ovary of the female reproductive part.
Option A: Anther: It is the broad knob of the stamen that has 2 sporangia in lobes.
Option B: Connective: the two lobes of anther join together by the help of middle parenchyma tissue, this makes the connective tissue.
Option C: Placenta: It is the wall of the ovary to which the ovules are attached after the fertilization. This will provide nutrients to the developing embryo.
Option D: Thalamus or petal: Thalamus is the base part of the stem which is thickened. To this, all the floral parts are attached. Petals are the colorful part of the flower. The proximal of filament is attached to the thalamus or petal while the distal part will release the anthers.

So the answer is option D: Thalamus or petals.

Note: Thalamus is the end of the pedicel. The pedicel is the corolla plus calyx. Thalamus is also called the receptacle. Depending on the position of the thalamus, flowers can be hypogynous, perigynous and epigynous. From the thalamus, the parts of the plants arise. It forms the condensed axis of the plant from which the corolla and calyx will arise.