The Fundamental Unit of Life — Science STD 9 — Question

Animal cell lacking nuclei would also lack in:

1. Chromosome.
2. Ribosome.
3. Lysosome.
4. Endoplasmic reticulum.

Eutrophication results in reduction of:

1. Dissolved hydrogen.
2. Dissolved oxygen.
3. Mineral salts.
4. Dissolved nitrate.

Which of the following statement is correct about fertilizer?

1. It is nutrient specific.
2. It is water insoluble.
3. It is readily absorbed by the plant.
4. It is compact and easy to transfer.

Cell wall of plant cells is chiefly composed of:

Soil is the component of:

1. Atmosphere.
2. Hydrosphere.
3. Lithosphere.
4. None of the above.

If the tip of sugarcane plant is removed from the field, even then it keeps on growing in length. It is due to the presence of:

Fungi resemble animals in having:

1. Mycelium.
2. Chitin.
3. Glycogen.
4. both (b) and (c).

Tendons and ligaments are:

1. Dense connective tissue.
2. Loose connective tissue.
3. Muscular tissue.
4. Vascular tissue.

Chlorofluorocarbons have been in use for:

1. Aerosol propellants.
2. Formation of foam.
3. Refrigerators.
4. All the above.

AIDS is mainly caused by:

1. Sexual intercourse.
2. Blood transfusion.
3. Through placental transfusion.
4. All of the above.