Bacteria are in general ranges from 0.5 to 5µm (micrometer) in length. blood cells ranges from 7-12 µm. so blood cells are bigger than Bacterium.
No
Red blood cell
A white blood cell is the biggest then the anthrax bacterium then the influenza virus.Hope it helps! :)
Fish blood contains nuclei in each blood cell and are much larger than human blood.
From independent status to codependent status to a symbiotic/parasitic relationship wherein the smaller bacterium was engulfed in the larger, eventually becoming what we know today as a mitochondria, an organelle in the body of a larger cell. Mitochondria are present in almost all human cells and provide energy for the cell.
A white blood cell can digest any infected/ injured cell
Lysosomes contain digestive enzymes within a cell. When a white blood cell engulfs a bacterium, the lysosome will merge with the vesicle containing the bacterium and digest it.
Virus
If it had a larger life span
Probably because of the tail. It also depends on what kind of sperm are you looking at. The Head of the Human Sperm is 5µm and the tail is around 50µm. Human Red Blood Cell is 6-8µm. But if you will look at a bulls sperm its larger the human rbc and sperm
A bacterium has a cell membrane, not a cell wall.
They are attacked by the cells lymphocytes
lymphocytes (a type of white blood cell) produce antibodies which will attach themselves to foreign particles. so a detected bacterium will have many antibodies surrounding it and stuck to it. antibodies which have attached themselves to the bacterium will send a signal to the phagocytes (another type of white blood cell) to come and 'eat'. so the phagocytes will engulf the bacterium, and secrete lysozyme (an enzyme which cuts up everything that comes into contact with it) to digest the bacterium, killing it. thank you for that :poopyloopy dark orbit.