Question

The edible part of the fruit of the apple is
(a)endocarp
(b)Thalamus
(c)Pericarp
(d)Perianth

Answer 1

Fruits are developed from the ovary. The fruits which are developed only from the ovary are called 'true fruits'. Apple is an example of false fruit.

Complete answer:
In general, after fertilization of the ovule by pollination, the ovary is transformed into the fruit and ovules mature into the seed. By the time fruit develops from the ovary, other floral parts degenerate and fall off.
In fruits such as apple and cashew, the thalamus or the pedicel also contribute to the formation of fruit. such fruits are called false fruits.
Apple is considered a false fruit.

Additional Information: Fruits are divided into four categories
They are as follows:
Simple fruits
Fruits that develop from a single ovary. They may be dry or fleshy.
Dry fruits are categorized further into dehiscent and indehiscent.
Drupe,berry,nut,pepo,pome,legume,cypsela,caryopsis are all types of simple fruits.
Ex: mango, coconut.
Aggregate fruits
Fruits that develop from multiple ovaries of a single flower.
Ex: strawberry.
Multiple fruits
Fruits that develop from multiple flowers in a single plant that fuse together.
Ex: pineapple.
False fruits
False fruits are fruits that are formed from parts of the flower other than the ovary. Ex:apple,pear,etc.
The fruits which split into one-seeded bits called mericarps are known as schizocarpic fruits.
Ex: acacia
In some fruits, the carpels are many and free and each carpel develops into a fruitlet; such a bunch of fruitlets is called aggregate fruits.
Ex: custard apple
So, the correct answer is ‘Thalamus’

Note: False fruits are also known as accessory fruits.
Other examples of false fruits are strawberry, cucumber, pear: thalamus. Cashew: peduncle.