The Grass Family. Laboratory Practical
Answers are for parents and teachers.
1
Draw a wheat leaf: sheath, blade, ligule.
The sheath wraps the stem; the ligule is a membrane at their border.
2
List 5 cultivated and 3 wild grasses.
Wheat, rice, maize, barley, sorghum; Bermuda grass, reed, bulbous barley.
3
Fill in the laboratory table for wheat and bean.
Wheat: monocot, fibrous root, parallel veins, grain; bean: dicot, taproot, net veins, legume.
4
If 30 centners of wheat are grown on 1 ha, how many centners from 10 ha? (30 × 10)
300
5
Why is a jointed, hollow culm advantageous?
Strong and flexible with little material; it resists breaking in wind.