In which one of the following would you expect to find Glyoxysomes (A) Endosperm of wheat (B) Endosperm of castor (C) Palisode cells in leaf (D) Root hairs

Question: 

In which one of the following would you expect to find Glyoxysomes 

(A) Endosperm of wheat 

(B) Endosperm of castor 

(C) Palisode cells in leaf 

(D) Root hairs

Answer: option (B) "Endosperm of castor"

Explanation:

Glyoxysomes are the special type of peroxisomes which are found in plant cells. It is mainly present in cells where fat conversion takes place. Glyoxysomes are the microbodies that contain enzymes for the beta-oxidation of fatty acids and glyoxylate pathways. It is quite abundant in germinating oilseeds. They are basically responsible for the glyoxylate cycle in which fat is converted into carbohydrates. It can be found in seeds containing fats and oils like corn, soybean, sunflower, peanut, castor, and pumpkin. So, Glyoxysomes are found in the endosperm of castor because it contains oil. In castor seeds, endosperm persists in the mature seed and can be used during seed germination. 

Hence, option (B) "Endosperm of castor" is the correct answer.