Question

Which of the following diseases is/are caused by bacteria?
O Leprosy
O Cholera
O Tetanus
O Dengue
(Multiple Correct)​

Answer 1

Cholera, Leprosy, Tetanus are caused by bacteria.

Cholera:- Vibrio Cholerae

Tetanus:- Clostridium Tetani

Leprosy:- Mycobacterium Leprae

Bacteria

It is a very small and simplest living organism. They can vary in size from 0.2 to 100 microns

$1 \: micron = 1 \div 1000mm$

They are single-celled organisms found almost everywhere.

Bacteria are found in 4 different shapes:-

• Bacilli :- Escherichia coli
• Cocci :- Streptococcus pneumoniae
• Vibrio :- Vibrio cholerae
• Spirilla :- Treponema pallidum

The bacteria which need oxygen for growth are called aerobic bacteria. The bacteria which can survive without oxygen are called anaerobic bacteria. Bacteria generally reproduce through binary fission.

Let's learn more about microorganisms:-

Viruses

The word virus means poisonous liquid. Viruses are the smallest microorganisms. They can only be studied under a electron microscope. They are acellular so they do not have ant substances present inside their cells. They only contain a small nuclear material wrapped in a protein coat.

Examples:-

• Vaccinia virus
• HIV-I virus
• Influenza virus
• Polio virus

Algae

Algae is a group of simple plants. Algae in Latin means 'sea weeds'. They vary in size, shape and habitat. Some are unicellular and microscopic while others are multicellular and can be few metres long. They have no stems, roots and leaves like other plants have, they have chlorophyll and can make their food through photosynthesis.

Examples:-

• Chlamydomonas
• Sea weeds'
• Spirogyra
• Volvox

Fungi

Fungi are organisms that do not contain chlorophyll in them. They are grown in dark and damp places. Conditions mendatory for their growth are warm and moist. Fungi can be both unicellular or multicellular.

Examples:-

• Yeast
• Mould
• Penicillium
• Mushroom

Protozoa

Protozoa are the unicellular living organisms that are found in lakes, ponds, rivers etc. They can be saprophytes ( feed on dead things) or parasites ( live on other living organisms). Protozoa contain chlorophyll and they can make their food by own rather than depending on other organism to do so.

Examples:-

• Paramecium
• Euglena
• Amoeba
• Trypanosoma

Answer 2

Cholera, Leprosy, Tetanus are caused by bacteria.

Cholera:- Vibrio Cholerae

Tetanus:- Clostridium Tetani

Leprosy:- Mycobacterium Leprae

Bacteria

It is a very small and simplest living organism. They can vary in size from 0.2 to 100 microns

1 \: micron = 1 \div 1000mm1micron=1÷1000mm

They are single-celled organisms found almost everywhere.

Bacteria are found in 4 different shapes:-

Bacilli :- Escherichia coli

Cocci :- Streptococcus pneumoniae

Vibrio :- Vibrio cholerae

Spirilla :- Treponema pallidum

The bacteria which need oxygen for growth are called aerobic bacteria. The bacteria which can survive without oxygen are called anaerobic bacteria. Bacteria generally reproduce through binary fission.

Let's learn more about microorganisms:-

• Viruses

The word virus means poisonous liquid. Viruses are the smallest microorganisms. They can only be studied under a electron microscope. They are acellular so they do not have ant substances present inside their cells. They only contain a small nuclear material wrapped in a protein coat.

Examples:-

• Vaccinia virus
• HIV-I virus
• Influenza virus
• Polio virus
• Algae

Algae is a group of simple plants. Algae in Latin means 'sea weeds'. They vary in size, shape and habitat. Some are unicellular and microscopic while others are multicellular and can be few metres long. They have no stems, roots and leaves like other plants have, they have chlorophyll and can make their food through photosynthesis.

Examples:-

• Chlamydomonas
• Sea weeds'
• Spirogyra
• Volvox
• Fungi

Fungi are organisms that do not contain chlorophyll in them. They are grown in dark and damp places. Conditions mendatory for their growth are warm and moist. Fungi can be both unicellular or multicellular.

Examples:-

• Yeast
• Mould
• Penicillium
• Mushroom
• Protozoa

Protozoa are the unicellular living organisms that are found in lakes, ponds, rivers etc. They can be saprophytes ( feed on dead things) or parasites ( live on other living organisms). Protozoa contain chlorophyll and they can make their food by own rather than depending on other organism to do so.

Examples:-

• Paramecium
• Euglena
• Amoeba
• Trypanosom