Question

Give two differences in each of the following pairs- Bean seed and maize grain.

Answer 1

Hint: Plant seeds are the important factor from which a plant evolved or reproduction part is the formation of seed. Every plant includes spermatophytes, gymnosperm and angiosperm plants. Mostly gymnosperm seeds are unisexual and they produce cones which act as seeds for them. Seeds are located in the ovary of a typical flowering plant.

Complete answer-
Maize grain is nothing but maize seed which are monocot seeds whereas bean seed is dicot seed. Maize grains have spaces around so the seed gets reserved for endosperm and bean seed possess two leaves which store food and nurture the seedling in the absence of endosperm.
The differences listed between bean seed and maize grain are-

Maize grain	Bean seed
Maize grain is monocot.	Bean seed is dicot.
Endosperm present in spaces.	Endosperm is absent between when the bean matures.
The seed of maize is inside the fruit.	The seeds of the beans are fused with a wall of fruit.
The seed of maize due to staying inside is called pod or legume.	The seed of the bean because the fruit wall is fused is called caryopsis.
Hilum in maize is visible.	Hilum is not visible in bean seed.
Maize grain has small embryos.	Beans contain large embryos.
Maize is albuminous.	Beans are non-albuminous.
Monocot maize has only one leaf inside the seed.	Bean is dicot so it contains two leaves inside.
Examples- apart from maize, corn also has the same characteristics.	Beans contain a food sac for embryo feed.

Note:
Seeds have functions apart from only reproduction as they help in nourishment of embryos and also disperse to new locations for germination and during adverse conditions protect the seedlings from any external harm and undergo dormancy. Seeds are the result of sexual reproduction and they have high amounts of starch, protein and oil content.