Important Questions Test: Microorganisms Friend And Foe - 2

Penicillium ascomycetous fungi are of major importance in the natural environment as well as food and drug production. Some members of the genus produce penicillin, a molecule that is used as an antibiotic, which kills or stops the growth of certain kinds of bacteria.

Mushroom, the conspicuous umbrella-shaped fruiting body (sporophore) of certain fungi, typically of the order Agaricales in the phylum Basidiomycota but also of some other groups.

The correct answer is A as Spirogyra is
 A kind of  algae

The air in our atmosphere is composed of molecules of different gases. The most common gases nitrogen  (78%), oxygen (about 21%), argon (almost 1%) and carbon dioxide (0.03%). Other molecules are present in  the atmosphere as well, but in very small quantities. Composition of air is measured in percent by volume,  at sea level at 15C and 101325 Pa.

B is the correct option.Microbes are minute, unicellular organisms that are invisible to the naked eye. They are also known as microorganisms or microscopic organisms as they could only be seen under a microscope or magnifying glass.

The correct option is A.
Viruses are ultramicroscopic organisms that are visible only through electron microscopes. Therefore, they need to infect a host cell.  The virus gets inside the host cells and makes hundred and thousands of copies of itself by using the host machinery.

Sir  Alexander Fleming, is credited with the discovery of Penicillin in 1928.
So, the given statement is false.

The correct answer is A as A pathogen may also be referred to as an infectious agent, or simply a germ. The term pathogen came into use in the 1880s. Typically, the term is used to describe an infectious microorganism or agent, such as a virus, bacterium

The correct answer is A as it is caused by  a bacteria called bacillus anthrasis

Louis Pasteur discovered the process of fermentation within the yeast cells in 1856.
So, the given statement is incorrect.
As, Edward Jenner developed smallpox vaccine in 1796.

Foot and mouth disease (FMD) is a severe, highly contagious viral disease of livestock that has a significant economic impact. The disease affects cattle, swine, sheep, goats and others.
So, as it is a viral disease ; the given statement is incorrect.