Leaf structure

• Biology
• Lower Secondary (Key Stage 3)

Leaf structure

Pallisade mesophyll

Waxy Cuticle

Air Space

Spongy mesophyll

Stomata

Apex

Midrib

Margin

Lamina

Vein

Petiole

Check for diseases and fungal infections

Monitor temperature and moisture levels

Place cuttings in propagator

Water cuttings

Dip plant cutting in rooting hormones and plant in soil

Collect Leaf cuttings

Make up compost and put in pots

Why use peat compost for cuttings?

1. Absorbs too much water
2. Retains moisture
3. Provides nutrients
4. Repels nutrients

What does perlite do in compost?

1. Improves drainage
2. Increases acidity
3. Promotes root rot
4. Aerates the soil

Why place cuttings in a propagator?

1. Increase sunlight exposure
2. Reduce air circulation
3. Maintain humidity
4. Control temperature

What is a key benefit of leaf cuttings?

1. Requires advanced skills
2. Only for flowering plants
3. Cost-effective method
4. Easy propagation