Question

State two safety precautions you must observe when testing a leaf for starch.

Answer 1

1. Cut the peel to a proper size and avoid folding it.
2. Always place the peel at the centre of the slide and hold the slide at the edges.
3. Do not overstrain or under strain the peel.
4. Always handle the peel with a brush as a needle may damage the cells.
5. Take care to prevent the peel from drying by using glycerin.
6. Place the coverslip gently, avoiding any air bubbles.
7. Remove excess stain and glycerin with a blotting paper.