Practical 1 Flashcards
1
Q
organelles observed specifically on Paramecium:
A
- contractile vacuoles
- nuclei
- cilia
- cytopharynx
2
Q
significance: contractile vacuoles
A
- live in freshwater
- water would naturally flow in via osmosis into the cell
- helps remove excess water from cytoplasm
3
Q
significance: nuclei
A
- has both macro and micro nuclei
- blueprint for production of proteins
- hereditary material to be passed on generation after generation
4
Q
significance: cilia
A
- ciliated protozoan
- for locomotion
- these individual cilia are connected to cytoskeleton beneath cell membrane
5
Q
significance: cytopharynx
A
- major feeding organelle
- food particles pulled towards blind end via special cilia
- it is engulfed via phagocytosis (like macrophages)
6
Q
name two stains used in this prac:
A
- congo red
- methyl-green/ pyronine stain
7
Q
what was the function of using: congo red stain
A
- see the food vacuoles in the paramecium
8
Q
what was the function of using: methyl-green / pyronine
A
- see the macro nucleus
9
Q
concept map app:
A
freemind
