Improvement in Food Resources — Science STD 9 — Question

The proteins and lipids, essential for building the cell membrane, are manufactured by:

Preventive and control measures adopted for storage of grains include.

1. Strict cleaning.
2. Proper disjoining.
3. Fumigation.
4. All the above.

Which of the following is leguminous green fodder commonly available in winter?

1. Cow pea.
2. Elephant grass.
3. Berseem and lucerne.
4. Rice and jowar.

Kala-azar (black fever) is caused by:

1. Protozoan.
2. Fungus.
3. Helminth.
4. Bacterium.

The most abundant compound in cytoplasm is:

The cell wall of which out of these is not made up of cellulose:

Pollution of water is caused by:

1. Industrial effluents.
2. Sewage.
3. Farm runoff.
4. All of these.

The conversion of NO₃ to N₂ is called:

1. Nitrification.
2. Denitrification.
3. ammonification.
4. Nitrogen fixation.

Parenchyma is a type of ________.

1. Complex tissue
2. Simple tissue
3. Xylem
4. Phloem

Class is a category between:

1. Phylum and order.
2. Kingdom and phylum.
3. Order and family.
4. Family and genes.