Kingdom Monera Kingdom Protista - Questions & Answers | Exam2Win

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351. The role of bacteria in retting of fibres is the hydrolysis of

A. Cellulose of the cell walls of the fibres

B. Lignin of the secondary wall

C. Living contents of the cells

D. Pectic substances that bind the cells together

Explanation:

352. Which is not a bacterial action?

A. Nitrogen fixation

B. Emulsification of fat

C. Sewage disposal

D. Ripening of cream

Explanation:

353. Leguminous plants are important in agriculture because

A. They are disease resistant

B. They have high amounts of proteins

C. They require less nitrogen for growth

D. Nitrogen fixing bacteria are symbiotically associated in them

Explanation:

354. Bacteria cannot survive in a highly salted pickle because

A. Salts inhibit reproduction

B. Bacteria do not get enough light for photosynthesis

C. They become plasmolysed and consequently killed

D. The pickle does not contain nutrients necessary for bacteria to live

Explanation:

355. The disease caused by bacteria is

A. Amoebic dysentery

B. Arthritis

C. Beri-beri

D. Diphtheria

Explanation: