Insufficient secretion of iodothyroxine in adults causes_____.

1. 1. Exopthalmic goiter
   2. Myxedema
   3. Goiter
   4. Cretinism

Photosynthesis carried out by terrestrial plants is _____of total photosynthesis.

1. 1. 0.1%
   2. 1-2%
   3. 0.05%
   4. 0.2%

A three dimensional dcavity bearing a specific charge by which the enzyme reacts with its substrate is called _____.

1. 1. Binding site
   2. Active site
   3. Catalytic site
   4. Allosteric site

Which one of the following is the swiftest form of the locomotion?

1. 1. Unguligrade
   2. Plantigrade
   3. Hopping
   4. Digitigrade

Four daughter cells are given to rise during the process of _____.

1. 1. cell division
   2. mitosis
   3. meiosis
   4. None of these

The site(s) where most of the uptake of water and minerals take place is/are_____.

1. 1. Root hairs
   2. Underground stem
   3. Root cells
   4. All of these

Lungs are situated in the _____.

1. 1. Thoracic cavity
   2. Pericardial cavity
   3. Abdominal cavity
   4. Buccal cavity

Red to orange pigments are _____.

1. 1. Chlorophyll
   2. Carotenoids
   3. Carotenes
   4. Xanthophylls

The word Archaeobacteria (a division of bacteria) is derived from Greek, which means _____.

1. 1. True bacteria
   2. Recent bacteria
   3. Ancient bacteria
   4. False bacteria

The main types of plastids are _____.

1. 1. Chloroplasts
   2. Leucoplasts
   3. Chromoplasts
   4. All of these