Question

Label these monocot seeds with the structures given.
1. Scutellum
2. Seed
3. Epicarp
4. Aleurone
5. Endosperm
6. Mesocarp
7. Coleorhiza
8. Shoot meristem
9. Plumule
10. Starchy endosperm
11. Coleptile
12. Root meristem
13. Seed coat (pericarp)

• A. A- 3, B- 6, C- 2, D- 5, E- 10, F- 13, G- 1, H- 4, I- 11, J- 9, K- 8, L- I2, M- 7
• B. A- 3, B- 6, C- 2, D- 5, E- 10, F- 13, G- 1, H- 4, I- 11, J- 9, K- 8, L- 7, M- 12
• C. A- 3, B- 6, C- 2, D- 5, E- 10, F- 13, G- 4, H- 1, I- 11, J- 9, K- 8, L- I2, M- 7
• D. A- 3, B- 6, C- 5, D- 2, E- 10, F- 13, G- 1, H- 4, I- 11, J- 9, K- 8, L-I 2, M- 7

Answer 1

The correct option is A A- 3, B- 6, C- 2, D- 5, E- 10, F- 13, G- 1, H- 4, I- 11, J- 9, K- 8, L- I2, M- 7

• The fruit given on the left-hand side is a drupe. It is produced by the dicotyledonous plant.
• The seed given on the right-hand side is produced by the monocotyledonous plant.
• Epicarp- One of the constituents of pericarp and the outermost layer of fruit.
• Mesocarp- One of the constituents of pericarp and present in between epicarp and endocarp. It is a fleshy, juicy and edible layer.
• Seed- Seed is the embryonic plant which is able to give rise to new plant under favorable conditions. It is covered with a seed coat.
• Endosperm- It is present inside the seed and produced by flowering plants. It surrounds the embryo and provides nutrition in the form of starch.
• Starchy endosperm- It is present inside the seed and produced by flowering plants. It surrounds embryo and provides nutrition in the form of starch. It occupies most of the part of the seed. This is generally observed in a monocotyledonous seed.
• Seed coat (pericarp)- Seed is covered by seed coat. It is also called as pericarp.
• Scutellum- It is cotyledon present in monocotyledonous seeds. It is one, large, shield-shaped structure.
• Aleurone- It is the outer covering of endosperm which separates the endosperm from embryo.
• Coleoptile- The sheath which encloses the plumule is called as coleptile.

Plumule- It is a rudimentary stem of an embryonic plant.

• Shoot meristem- Meristematic tissue present at the tip of shoot which gives rise to new cells and length of the shoot increases.
• Root meristem- Meristematic tissue present at the tip of root which gives rise to new cells and length of the root increases.

Coleorhiza- The sheath which encloses the radicle is called as coleorhiza. Radicle- gives rise to root after seed germination

Thus, the correct answer is option A.