Microorganisms and Viruses

Biology

Not quite remember

I easily remember

Types of microorganisms

Bacteria, protozoa, algae, fungi & viruses.

The size of bacteria

Range from 1 to 10 μm long

Protozoa move around using:

Pseudopodia (false feet), cilia or flagellum

Algae are autotrophs because

They have chloroplast

Viruses are made up of

Nucleic acid (DNA or RNA) and capsids that are made from protein.

Role of microorganism:

Nitrogen cycle, producers, symbiont, parasite & decomposer.

Symbiont

An organism which has a close relationship with another organism (host).

Pathogens

Organisms that cause disease.

Vectors

Organisms that transmits pathogen & causes a certain disease.

Effect of pathogens on human health

Pathogen disrupts the immune system and causes sickness.

Report this flashcard