Question

Monocot pollen grains are generally
A. Monocolpate
B. Bicolpate
C. Tricolpate
D. Multicolpate

Answer 1

Commonly, there are two variants of colpate pollen grains in angiosperms, monocolpate, and tricolpate. Tricolpate pollen grains are built-in dicots, whereas monocolpate pollen grains are a characteristic feature of monocots. Monocolpate pollen grains possess a single furrow on one side.

Complete step by step answer: Colpus is a long furrow like aperture and pollen grains containing such apertures are known as colpate. Commonly, there are two types of colpate pollen grains in angiosperms; monocolpate and tricolpate. Tricolpate pollen grains are shown in dicots, whereas monocolpate pollen grains are a characteristic property of monocots. Monocolpate pollen grains contain a single furrow on one side. Monocots or monocotyledons are a class of flowering plants or angiosperms. Monocots are named for and accepted through the single cotyledon, or seed leaf, within the seed. The first green blade emerging from the seed upon germination is the cotyledon, which contains sugars and other nutrients for growth until the leaf is able to photosynthesize. Monocots can be recognized by the arrangement of vascular tissues in the stem. Vascular tissue comprises xylem, used for water transport from the roots, and phloem, which carries sugars and other nutrients from the leaves to other tissues throughout the plant.
So, the correct answer is option A.

Note: There are approximately 60000 species of monocots that have been identified. Some of the economically important monocot families are Poaceae, Liliaceae, Orchidaceae, Iridaceae. It is widely believed that the monocots were derived from primitive eudicots.