Note the colour on the cotton plugging the tube.
1. Sucrose: White
2. Lactose: Red
3. Maltose: Black
4. Glucose: Green
5. Xylose: Blue
6. Mannitol: Violet
Gram -ve/+ve Cocci
These will only come for staining and fixing. But you should know what they look like becasue your viva is based on these.
Gram Positive will have a purplish/bluish hue.
Gram Negative Cocci have a pinkish hue.
*Note: Size is not a difference, the pictures are taken with different magnification.
These do not come for identification. Urine slides come as a question in practical theoretical and you are to draw what you see in the microscope and give your viva on it.
Things visible under microscope:
How you have to draw:
These tubes will come for identification. Identify them by there colour.