Required Practical 2 Flashcards
1
Q
Why is hydrochloric acid used in this practical?
A
Softens and loosens the root tissues
2
Q
Why is a stain used in this practical?
A
To stain the chromosomes and make them visible
3
Q
Why is a mounted needle used in this practical?
A
To lower the cover slip and prevent air bubbles under the colour slip
4
Q
Why is the root tip of onion/garlic used in this practical?
A
The tip is the growing region, therefore mitosis should be occurring here
5
Q
Why do you press down firmly on the cover slip?
A
To get a thin layer of cells so light can pass through
6
Q
Hazard of scalpel
A
Cut yourself
Cut away from your body when slicing
7
Q
Hazard of hydrochloric acid
A
Irritant
Wear goggles and wash hands if any spills on you
