Question

Waste Products are stored as resins and gums in the-
a. Old Xylem
b. Young Xylem
c. Old Phloem
d. Young Phloem

Answer 1

The oil extracted from orange, eucalyptus, jasmine, latex from the rubber tree, papaya tree, and gums from acacia, are dissimilar forms of stored waste products. Sometimes they even emit into the soil. Apart from gaseous wastes, metabolism in plants also exudes organic by-products. These wastes are stored in many forms in different parts.

Complete answer:
The gums, oils, latex, resins, etc. are several waste products stored in plant parts like barks, stems, leaves, etc. Sooner or later, plants shed off these parts.

Resins and gums are metabolic secondary products of plant tissues either in the standard course or often as a result of disease or wound to the bark or wood of certain plants. There are a large number of trees in India which exude gums and resins. Some of these are of local or limited interest, while a few are used extensively all over India and also entered the export trade of the country.

Resins and gums are metabolic by-products of plant tissues. They are formed in specialized structures called passages ducts. Gums are the waste products typically formed due to the breakdown of the plant cellulose. These byproducts are accumulated in the vacuoles of the aging cell such as old xylem. These cells die and then fall off finally.

Hence, the correct answer is option (A).

Note: Excretion in plants can also do as follows:
Transpiration: Gaseous excretion and water are excreted through stomata, lenticels of the stem, and the external surface of stems, fruits, etc.
Storing: Some raw wastes are stored in plant parts such as barks and leaves.
Diffusion: Aquatic plants excrete metabolic wastes by diffusion. Terrestrial plants ooze out into the soil.