An infectious disorder of respiratory system is _____.

1. 1. Asthma
   2. Cancer
   3. Emphysema
   4. Tuberculosis

Water potential of pure water is _____.

1. 1. negative
   2. zero
   3. one
   4. two

Empty diatom cells are called _____.

1. 1. Valves
   2. Raphe
   3. Girdles
   4. Frustule

Cell wall is richly impregnated with silica in _____.

1. 1. Euglenophyta
   2. Baciliariophyta
   3. Rhodophyta
   4. Phaeophyta

An association in which fungal hyphae penetrate the outer cells of the plant root forming coils swellings and minute branches and also extend out into surrounding soil is called_____.

1. 1. Endomycorrhizae
   2. Mycorrizael association
   3. Lichen
   4. Ectomycorrhizae

Group of living organisms of the same species living in the same place at the same time is called _____.

1. 1. Ecosystem
   2. Community
   3. Biome
   4. Population

Pancreas produces secretory granules that help in digestion. These granules after passing through endoplasmic reticulum are pinched off from _____surface of Golgi apparatus.

1. 1. Maturating face
   2. Forming face
   3. Both (a) and (b)
   4. None of these

Which of the following fungus is known as “Green Mold”?

1. 1. Mucus
   2. Aspergillus
   3. Penicillium
   4. None of the above

Penicillium reproduce via _____.

1. 1. Spores
   2. Budding
   3. Conidia
   4. Fragmentation

Epinasty is controlled by _____.

1. 1. Auxins
   2. Gibberellins
   3. Cytokinins
   4. Abscisins