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What’s the difference between Bacteria and Parasite?

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Key Difference: Both these words come under the same microorganisms and have the same characteristics: Bacteria and Parasite. Both of these microorganisms will help in improving ecosystems and are harmful too. Bacteria is a specific microorganism found in various environments such as soil, water, etc., whereas a parasite is a microorganism that will live on another host organism. You can learn the significant differences between bacteria and parasites in this article.

Good examples of the words Bacteria and Parasite are,
1. Bacteria do not have a nucleus.
2. Antibiotics can kill parasites.



Bacteria are prokaryotic organisms.

Bacteria are microscopic, single-celled organisms with no nucleus and no organelles. Some bacteria are harmful and produce toxins; harmful chemicals affect them, and some are harmless. It is a prokaryotic and single cell’s organism. Humans have long used bacteria to create food products such as cheese, yoghurt, and pickles. Most of the bacteria are fast-growing and are first called animalcules.

There are two types of bacteria, one is Gram-positive, and the other one is Gram-negative. The major difference in both types is gram-negative bacteria have an outer membrane in their body. The world’s first bacteria are cyanobacteria. Bacteria are the smallest living organism on this planet. The main characteristic of bacteria is it doesn’t have membrane-bound organelles in its body. The Best Example of Bacteria is “Bacteria lives in pH neutral.”

How do We Spell the Word Bacteria?

The vocal representation of the word Bacteria is “bak·teeuh·ree·uh, and in the below, you can know by hearing the audio of the phrase bacteria.


Syllabification is where we split the words into individual vowel sounds. A syllable should have at least one vowel in the word. For example, we will see the syllable of the word “Bacteria.

  • I wondered if the word “Bacteria” has four syllables.
  •  The split is “BAC-TE-RI-A.”

How do We Pronounce “Bacteria”?

“Bacteria” Pronunciation

Using “Bacteria” in sentences:

  • Bacteria are disease-causing microorganisms.
  • We need to wash our hands using soap to kill bacteria.
  • Leeuwenhoek is the father of bacteria.
  • How are the bacteria spreading?
  • The size of the bacteria is 0.4–3 µm3.



The parasite lives on other organisms.

A parasite is an organism that lives on another organism and depends on the host and its survival. It can adapt to many new environments and hosts, so it isn’t easy to treat and control. The parasite can be transmitted through direct contact with an infected individual and contaminated through food and water. It causes chronic or persistent infections that can be difficult to cure and need prolonged treatment with proper medications.

Parasites can cause immunological responses in the host, such as inflammation, and they can develop resistance to antibiotics and antiparasitic drugs sometimes, which is more difficult to treat the patients. The Best Example of the word parasite is” Giardia infection is the dangerous parasitic disease.”

How do We Spell the Word Parasite?

Spell / Pronunciation in which a word or particular language is spoken among people. The Oral representation of the phrase parasite is “pa·ruh·site.” It would help if you practiced it slowly for the outcome of a perfect spell. Below, you can know by hearing the audio of the word parasite.


Syllabification is where we split the words into individual vowel sounds. A syllable should have at least one vowel in the word. For example, we will see the syllable of the word “Parasite.”

  • Wondering if the word “Parasite” has three syllables in it.
  •  The split is “PAR-A-SITE.”

How do We Pronounce “Parasite”?

“Parasite” – Pronunciation

Using “Parasite” in sentences:

  • Parasites usually harm their hosts.
  • Some parasites cause serious diseases in humans.
  • Dehydration is one of the symptoms of parasitic disease.
  • Symptoms of the parasitic disease usually long last for 6 to 8 weeks.
  • Metronidazole antibiotic kills the parasite.

Similarities between Bacteria & Parasite

The title reveals the difference between Bacteria & parasites. But, like, you want to know also similar things about the above two words. So come, let’s see below.

  • Bacteria and Parasites are microorganisms that can cause disease and infection in humans and animals and are transmitted through direct contact and contaminated food & water.
  • Bacteria and parasites have complex life cycles, need multiple hosts, can be found in various environments, and can be treated with medications like antibiotics and antiparasitic drugs.


DEFINITIONIt is the large group
of microorganisms
is a unicellular one.
The organism lives in or hosts an organism and gets food from the host.
SYNONYMSMicroorganisms, Bacilli,
Bugs, Pathogens.
Mooch, Moocher, Sponger, Leech, Scroucher, Bloodsucker.
TYPESCoccus form –  Spherical-shaped 
Bacillus form – Rod-shaped 
Spirilla form – Spiral-shaped
Vibrio form – Comma-shaped
BENEFICIALSome bacteria are useful.Some parasites are beneficial.
REPRODUCTIONBacteria reproduce through
binary fission.
Parasites reproduce both sexually and asexually.
EXAMPLESBacteria are microscopic organisms.
Bacteria eat starches and sugars.
E. coli is the main type of bacteria in food.
The other name of bacteria is animalcules.
Bacteria have flagellum to move its body.
There are more ways to spread parasitic infections.
Parasites spread a disease that may be fatal.
Henry gets rid of soon from the parasitic disease.
Stomach cramps and pain are the symptoms of parasite disease.
List the disease caused by parasites.

Infographic Representation:


Resources & References:

Resources: Cambridge Dictionary (Bacteria & Parasite), Merriam-Webster (Bacteria & Parasite), (Bacteria & Parasite) 
Reference:[1], Merriam-Webster. com[2][3], Dictionary. com[4].


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