Prelab Brief
To study the external and internal structure of monocot (maize) and dicot (gram/bean) seeds through dissection.
📘
Theory
Dissect and explore the internal structure of monocot and dicot seeds. To study the external and internal structure of monocot (maize) and dicot (gram/bean) seeds through dissection.
∑
Formula
Principle: To study the external and internal structure of monocot (maize) and dicot (gram/bean) seeds through dissection.
🎯
Aim
To study the external and internal structure of monocot (maize) and dicot (gram/bean) seeds through dissection.
🧰
Apparatus
- Soaked gram seeds (dicot)
- Soaked maize seeds (monocot)
- Scalpel / Blade
- Magnifying glass
- Iodine solution
- Drawing sheet
🧪
Procedure
- Soak seeds overnight in water.
- Observe external features: seed coat, hilum, micropyle.
- Carefully split the dicot seed — identify two cotyledons, radicle, plumule.
- Cut the monocot seed longitudinally — identify endosperm, single cotyledon (scutellum), coleoptile, coleorhiza.
- Apply iodine on endosperm — blue-black confirms starch.
- Draw labelled diagrams of both types.
Pre-Lab Questions
What is the main aim of the Virtual Seed Dissection Experiment?
Which principle is demonstrated in the Virtual Seed Dissection Experiment?
What apparatus is required for this experiment?
Why is Soaked gram seeds (dicot) used in this experiment?
What formula or relationship is verified in this experiment?
What precaution should be followed while performing this experiment?
What conclusion can be drawn from the Virtual Seed Dissection Experiment?