Irritation
TASK 1: Chemotaxis in ciliates
NP: hay infusion
Put two drops of hay infusion onto the slide (do not cover). Connect both drops using skewer to form a thin bridge. Then add several crystals of salt (NaCl) to one of the drops. Observe negative chemotaxis.
![fig.](texty_en/fig62-1.gif)
TASK 2: Oxygenotaxis in ciliates
NP: hay infusion
Cover a drop of hay infusion with cover glass and form air bubbles under it. You can observe positive oxygenotaxis. The same effect can be observed at the edges of cover glass.
![fig.](texty_en/fig62-2.gif)
![show all](img/rozbalit.png)
Content
- Biology
- Chemical composition
- Non-cellular life
- Prokaryotes and immersion microscopy
- Eukaryotes
- Movement and irritation
- Transport of substances, osmosis
- Mitosis
- Reproduction and development
- Influence of surroundings onto the bioplasm
- Research methods in biology
- Genetics
- Cytogenetics
- Model organism
- Monohybridism
- Polyhybridism
- Polymorphic genes
- Gene interactions
- Inheritance and sex
- Genetic linkage
- Population genetics
- Quantitative genetics
- Nonmendelian inheritance