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Microorganisms - 1

Description: Microorganisms - 1
Number of Questions: 10
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Tags: Microorganisms - 1 Microorganisms and Diseases Bacteria Micro Organisms Micro-Organisms and Diseases Algae Protozoa
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Which of the following is false about ‘fungi’?

  1. They are made of fine thread-like structures called hyphae.

  2. Most of them feed on dead things.

  3. They look like plants.

  4. They can synthesise their own food.


Correct Option: D
Explanation:

Fungi are saprophytic. They do not have chlorophyll. Hence, they cannot synthesise their own food.

_____ is a slipper-shaped microorganism.

  1. Entamoeba

  2. Virus

  3. Paramecium

  4. Diatom


Correct Option: C
Explanation:

Paramecium is a slipper-shaped microorganism.

What is the unique characteristic of diatoms?

  1. They do not have a cell wall.

  2. Their cell wall is made up of silica.

  3. Their cell membrane is made up of silica.

  4. Their cells lack cytoplasm.


Correct Option: B
Explanation:

Diatoms are a kind of algae. Their cell wall is composed of silica.

Which of the following organisms reproduce(s) only within the cells of host organism?

  1. Bacteria

  2. Protozoa

  3. Viruses

  4. Rhizopus


Correct Option: C
Explanation:

Viruses reproduce only inside the cells of other organisms because they do not have their own cellular apparatus.

What type of cellular organisation is present in protozoa?

  1. Unicellular eukaryotic

  2. Multicellular eukaryotic

  3. Multicellular prokaryotic

  4. Unicellular prokaryotic


Correct Option: A
Explanation:

Protozoa are unicellular eukaryotic organisms.

Which of the following is/are able to fix nitrogen?

  1. Bacilli

  2. Diatoms

  3. Blue-green algae

  4. All of these


Correct Option: C
Explanation:

Blue-green algae fixes atmospheric nitrogen.

What are the false feet or finger-like projections in amoeba called?

  1. Flagella

  2. Tubules

  3. Cilia

  4. Pseudopodia


Correct Option: D
Explanation:

False feet or finger-like projections in amoeba are called pseudopodia.

Which of the following kinds of bacteria are called ‘cocci’?

  1. Round-shaped

  2. Rod-shaped

  3. Comma-shaped

  4. Spiral-shaped


Correct Option: A
Explanation:

Round-shaped bacteria are called ‘cocci’.

Which of the following types of bacteria has flagella?

  1. Coccus

  2. Bacillus

  3. Spirochete

  4. None of these


Correct Option: B
Explanation:

Bacillus bacteria has flagella.

Which of the following organisms is not a microorganism?

  1. Virus

  2. Fungus

  3. Anopheles

  4. Bacteria


Correct Option: C
Explanation:

Anopheles is a mosquito and not a microorganism.

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