Repetitive Downloading Quiz

A bean seed consists of a seed coat (testa and tegmen), cotyledons, hilum, and micropyle. Inside the seed coat, there are two thick cotyledons containing food for the embryo.

The micropyle serves two functions: absorbing water for germination and facilitating the diffusion of respiratory gases for the growing embryo.

The embryo of a bean seed consists of the radicle, which forms the root, and the plumule, which forms the shoot. The plumule includes a short stem with tiny leaves and a growing point.

<p>Albuminous seeds have thin cotyledons with persistent endosperm, while exalbuminous seeds have thick, fleshy cotyledons that store food.</p> Signup and view all the answers

<p>The seed coat, made of testa and tegmen, protects the inner parts of the seed from injury, bacteria, fungi, and insects. It acts as a barrier to external threats.</p> Signup and view all the answers

<p>The primary function of a fruit is to protect the seed and aid in seed dispersal.</p> Signup and view all the answers

<p>In a grain, the fruit wall and the seed coat are fused together to form a protective layer.</p> Signup and view all the answers

<p>The seed coat protects the embryo from mechanical damage.</p> Signup and view all the answers

<p>Monocotyledonous seeds contain one cotyledon (seed-leaf), while dicotyledonous seeds contain two cotyledons.</p> Signup and view all the answers

<p>The embryo can withstand unfavorable conditions like temperature and drought while in a dormant state within the seed.</p> Signup and view all the answers