The life and activities of a cell is controlled by_____.

1. 1. cytoplasm
   2. vacuole
   3. nucleus
   4. mitochondria

Which one of the following is a micromolecule?

1. 1. ATP
   2. Polysaccharide
   3. Hemoglobin
   4. Protein

Which of the following is the first carbohydrate?

1. 1. Monosaccharides
   2. Glucose
   3. Starch
   4. None of these

Blood does not clot in the blood vessels due to the presence of _____.

1. 1. Prothrombin
   2. Fibrinogen
   3. Thrombin
   4. Heparin

Which one of the following is avascular structure?

1. 1. Cartilage
   2. All of these
   3. A compact bone
   4. A spongy bone

Rigor mortis i.e, stiffening of body after death results from_____.

1. 1. Unavailability of ATP, which is necessary to break the link between actin and myosin
   2. Accunulation of rigid proteins molecules in sarcoplam
   3. Death of tissue due to unavailability of O2
   4. Decrease in body temperature after death

The increase in the heart rate is termed as _____.

1. 1. Tachy bradycardia
   2. Bradycardia
   3. Tachycardia
   4. None of these

Earthworm is included in _____.

1. 1. Kingdom Protoctista
   2. Kingdom Plantae
   3. Kingdom Animalia
   4. Kingdom Monera

Parasites capable of living independently of its host at times is called as _____parasite.

1. 1. Obligate
   2. Facultative
   3. Endoparasite
   4. Strict

Which of the following statement is incorrect about Molluscans?

1. 1. They have hydrostatic skeleton
   2. They move by tube feet
   3. Their shell grows as the animal grows
   4. They are surrounded by single or double pieces of hard skeleton