Chapter 5 (Variety of Life) F.Sc 1st Year Biology Short Questions

What is lysozyme?

The tail of bacteriophage releases the enzyme lysozyme to dissolve a portion of the bacterial cell wall.

What is lytic or virulent phage?

The phage which causes lysis of the host cell is known as lytic or virulent phage.

What is the scientific name for onion, amaltas and man?

Scientific name for onion is Allium cepa, for amaltas Cassia fistula and for man Homo sapiens.

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What is the botanical name for potato and brinjal?

Botanical name for potato is Solanum tuberosum and for brinjal Solanum melangena.

What did Chamberland find?

In 1884, Charles Chamberland found that bacteria cannot pass through porcelain filters.

What are naked virions?

Non-enveloped viruses are known as naked virions.

What is the difference between kingdom plantae and fungi?

Kingdom Plantae include eukaryotic multi-cellular autotrophs while Kingdom۔ Fungi include eukaryotic multicellular reducers for example mushrooms.

How many times viruses are smaller than bacteria?

Viruses are 10 to 1000 times smaller than most bacteria.

Differentiate between capsid and capsomeres.

The viral genome is surrounded by a protein coat, the capsid whereas capsid is made up of protein subunits called capsomeres.

What is nucleocapsid?

The nucleic acid and capsid is collectively called nucleocapsid.

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