When the microbe enters our cell and starts using our cell machinery how to they breed to produce more of their own kinds when they themselves are struck in 1 cell each

CBSE Class 9 Answered

When the microbe enters our cell and starts using our cell machinery how to they breed to produce more of their own kinds when they themselves are struck in 1 cell each

Asked by Sarika | 11 Dec, 2015, 09:52: PM

Expert Answer

The different microbes breed in different kinds. We can take the cases of bacteria, fungi, algae and virus.

1. Bacteria- Bacteria reproduce by simply dividing in two which is called as binary fission.. Each new bacterium is a clone of the original and they each contain a copy of the same DNA.one bacterium could become a billion bacteria in just 10 hours through binary fission.

2. Fungi- Yeasts reproduce by budding.A parent yeast cell forms a growth or bud on its surface. As this bud gets bigger, the parent cell's nucleus divides into two by mitosis. One yeast cell can produce up to 24 daughter cells.

3. Algae- Algae can reproduce without sex. The nucleus of the algal cell divides by mitosis and moves to opposite ends of the cell. Then the cell divides into two new cells which is called cytokinesis.

4. Protozoa- They reproduce by budding or multiple fission in which the cell's nucleus divides several times before the cell itself divides into multiple new cells, each with one of those new nuclei.

5. Virus- Viruses cannot reproduce on their own. They take over the host cell's machinery and use it to make copies of their genes and proteins. These genes and proteins come together to make new viruses

Answered by Sivanand Patnaik | 14 Dec, 2015, 08:59: AM