Question

Gritness in the pulp of fruit like sapota and guava due to?
A. Parenchyma
B. Sclerenchyma
C. Collenchyma
D. Fibres

Answer 1

Hint Guava is a popular tropical fruit that is grown in a variety of tropical and subtropical climates. The myrtle Psidium guajava is a tiny tree found in Mexico, Central America, the Caribbean, and northern South America.

Complete answer:
Stone cells, also known as sclereids, are responsible for the grittiness of pear fruit. Sclereids are sclerenchyma cells with thick, lignified walls that help tissues maintain structural integrity and strength. It relieves the tension that over-ripening causes in the fruit.
In most plants, sclereids are a reduced version of sclerenchyma cells with thicker, lignified cellular walls that form tiny bundles of persistent tissue layers. Sclereids come in a variety of shapes, but they're usually isodiametric, prosenchymatic, forked, or richly branched.
They can be found as single cells or small clusters of cells within parenchyma tissues, clustered into bundles, or as entire tubes at the periphery. An idioblast is a sclereid cell that has been isolated. Sclereids live in the epidermis, ground tissue, and vascular tissue.
The presence of many sclereids is responsible for the rough feel of guavas and the cores of apples.

So 'sclerenchyma’ is the correct answer, that is option B.

Note: Their fruits are oval in shape and have a light green or yellow skin with edible seeds inside. Guava leaves are also used as a herbal tea, and the leaf extract is taken as a supplement. Antioxidants, vitamin C, potassium, and fibre are abundant in guava fruits. They provide a lot of health benefits because of their high vitamin content.