Question

In pineapple the edible part is
(a)Pericarp and the thalamus
(b)Rachis/peduncle, bracts, perianth, and pericarps
(c)Mesocarp and endocarp
(d)Pericarp and placenta

Answer 1

Hint: Pineapple is a tropical plant that grows from an intercalary spike type of inflorescence. It has an edible part and is a sorosis kind of composite fruit.

Complete answer:
In pineapple, the edible part is rachis/peduncle, perianth, bracts, and pericarp. The ovaries of the flowers forming the pineapple are not conspicuous and all the parts of the flower contribute to the formation of the entire fruit. Each segment of the fruit develops from the carpal (stigma, style, and ovary) of the flower.

Additional Information: -The stem of an inflorescence where the stalk supports an inflorescence, flower, or fruit is known as the peduncle.
-A bract is a modified leaf associated with a reproductive structure such as a flower or flower cluster in its axil. It may be small, large, different color, shape, or texture. It is larger and brightly colored than the true flower in poinsettia.
-The perianth is a part of the flower that forms an envelope surrounding the sexual organs, consisting of the calyx (sepals) and the corolla (petals).
-Fruits generally have three parts and all three are known as the pericarp. They are the exocarp, the mesocarp, and the endocarp.
Epicarp – the word is from Greek and it means on or upon fruit is the outermost layer of the pericarp (or fruit). It is also known as exocarp especially in citrus, the flavedo.
Mesocarp- usually contains pulp rich in fatty acids, amino acids, and vitamins and usually is the edible part of the fruit.
Endocarp- the inner part of the fruit
Fruits like pear and apple are false fruits as the thalamus is edible for eating. Fruits like guava and grapes are true fruits as the edible part is pericarp.
So, the correct answer is 'Rachis/peduncle, bracts, perianth, and pericarps'.

Note: The expanded basal part, on which the style is present, is known as the ovary. It is an organ of the female reproductive part of flowers or gynoecium. It holds the ovule. A ripened ovary of a plant containing seeds is the fruit.