Which of the following cytoskeletal fiber contain tubulin protein?

1. 1. One involved in internal cell motion
   2. One which help in assembly of spindles during mitosis
   3. One involved in maintenance of cell shape
   4. Both b & c

Cellulose is the major component of_____.

1. 1. Secondary wall
   2. Primary wall
   3. Middle lamella
   4. all of the above

In osmosis water molecules move from area of_____through semipermeable memberane?

1. 1. Lower solute concentration to higher solute concentration
   2. Higher solute concentration to lower solute concentration
   3. Lower solvent concentration to higher solvent concentration
   4. All of these

Sperms are _____in origin.

1. 1. Ectodermal
   2. Endodermal
   3. Mesodermal
   4. None of these

Which of the following component of chloroplast chlorophyll is arranged?

1. 1. Thylakoids
   2. Cell membrane
   3. Matrix
   4. Stroma

Disease which transferred from animal to Human is_____.

1. 1. Sporadic
   2. Zoonosis
   3. Epidemic
   4. Endemic

Which of the following forms the bulk of exoskeleton of an arthropod?

1. 1. Procuticle
   2. Epicuticle
   3. Exocuticle
   4. None of these

Ecdysone is _____.

1. 1. An enzyme that digest endocuticle during an arthropodal ecdysis
   2. A newly formed exoskeleton in arthropods
   3. A process that involves molting
   4. A hormone that regulates molting in arthropods

from right ventricle the blood is pushed into_____.

1. 1. brain
   2. aorta
   3. pulmonary trunk
   4. None of these

Which one of them is a micro-molecule?

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