A student while observing an embryo of a pea seed in the laboratory listed various parts of the embryo as given below : Testa, Tegmen, Radicle, Plumule, Micropyle, Cotyledon. On examining the list the teacher remarked that only three parts are correct. Select three correct parts from the above list : (a) Testa, Radicle, Cotyledon (b) Tegmen, Radicle, Micropyle (c) Cotyledon, Plumule, Testa (d) Radicle, Cotyledon, Plumule
Answers
Answer:
The embryo of pea seeds consists of three main parts – plumule, radicle and two cotyledons.
Answer:
(d) Radicle, Cotyledon, Plumule is the correct option.
Explanation:
Radicle, cotyledon, and plumule are the main parts of an embryo of a pea seed whereas testa, tegmen and micropyle are present on the seed coat of the pea seed. All the other options consist of testa, tegmen, and micropyle so only option (d) is correct.
Plumule is present inside the seed embryo which develops to become a shoot of the plant and radicle develops to become the roots of the plant. Cotyledons are also present inside the embryo of the plant which provides energy to the embryo of the seed during the development stage. Whereas testa and tegmen are the outer and the inner seed coats. The micropyle is also present on the seed coat which serves as an opening to absorb water during germination.