Bacteria General Study

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What is the purpose of the toxoids in the vaccines?

To provide immunity against future attacks
To weaken the bacteria
To kill the bacteria
To stimulate the production of antibodies (correct)

What is the role of nitrogen-fixing bacteria in the soil?

To provide oxygen to plants
To break down organic matter
To produce toxins that kill plants
To convert atmospheric nitrogen into amino acids (correct)

What is the main difference between BCG and TAB vaccines?

One is used for bacterial infections and the other for viral infections
One is used for tuberculosis and the other for typhoid (correct)
One is used for typhoid and the other for diphtheria
One is made from living bacteria and the other from dead bacteria

What is the limitation of plants in terms of nitrogen?

They cannot make use of nitrogen in the atmosphere (C) Signup and view all the answers

What is the name of the bacteria that lives in small nodules on the roots of legume plants?

Special category of soil bacteria (C) Signup and view all the answers

What is the cellular structure of bacteria?

Prokaryotic (B) Signup and view all the answers

What can some bacteria obtain from animal wastes?

Nitrates (D) Signup and view all the answers

What is the process by which some bacteria obtain nitrates?

Abson (C) Signup and view all the answers

What is the economic importance of bacteria?

They are used in food production (A) Signup and view all the answers

What is the general characteristic of bacteria?

They are found everywhere (D) Signup and view all the answers

What type of organisms are referred to in the passage?

F bacteria (B) Signup and view all the answers

Where do some bacteria obtain nitrates from?

Wastes of animals (A) Signup and view all the answers

What is unique about the cell structure of bacteria?

They are single-valved (B) Signup and view all the answers

What is the general classification of bacteria?

Prokaryotes (B) Signup and view all the answers

What is the study of the biology of these organisms called?

CUNCTII BIOLOGY (D) Signup and view all the answers

What is the role of high concentration of sugar and salt in jams and pickles?

To prevent spoilage (C) Signup and view all the answers

What is the purpose of adding preservatives like sodium benzoate to tinned foods and squashes?

To prevent spoilage (B) Signup and view all the answers

What is the name of the disease caused by the bacterium Bacillus anthracis?

Anthrax (A) Signup and view all the answers

What is the name of the bacterial disease that affects the lungs of cattle?

Bovine tuberculosis (C) Signup and view all the answers

What is the shape of the bacterium Vibrio?

Comma-shaped (B) Signup and view all the answers

What are bioweapons capable of doing?

Causing widespread death (D) Signup and view all the answers

What method is used to preserve vegetables and fruits?

Chilling in cold storage (D) Signup and view all the answers

What is the primary characteristic of bacteria?

They are variously shaped (C) Signup and view all the answers

What is the purpose of adding bacteria to certain foods?