ExamGOAL
Books
31

Why are blue-green algae not popular as biofertilisers?

Explanation

Blue-green algae add organic matter to the soil and increase its fertility still these are not popular as biofertilisers. This is due to several constraints that limit the application or implementation of the biofertiliser technology. The constraints may be environmental, technological, infrastructural, financial, unawareness, quality, marketing etc.

32

Which species of Penicillium produces Roquefort cheese?

Explanation

Roquefort cheese is formed by ripening of cheese with the fungi Penicillium roqueforti for a particular flavour.

33

Name the states involved in Ganga Action Plan.

Explanation

Ganga runs from Gangotri in the Himalayas to Ganga Sagar in the Bay of Bengal. The Ganga Action Plan (GAP) was a program launched in April 1986 in order to reduce the pollution load on the River Ganga.

The states involved in Ganga Action Plan are- Uttaranchal, UP, Bihar, West Bengal and Jharkhand.

34

Name any two industrially important enzymes.

Explanation

(i) Lipases are used in detergent formulations and are helpful in removing oily stains from the laundry.

(ii) Pectinases and proteases that are used as clarifying agents in making commercial fruit and vegetable juices.

35

Name an immune immunosupressive agent?

Explanation

Cyclosporin-A, produced by the fungus Trichoderma polysporum is used as an immunosupressive agent in organ transplant patients.