Most of the cellular secretions are _____ in nature.

1. 1. Proteins
   2. Glycolipids
   3. Nucleohistones
   4. Glycoproteins

The contraction of _____ muscle fibers is controlled by hormones.

1. 1. a smooth
   2. a skeletal
   3. a cardiac
   4. all of these

Which one of the following is not the characteristic of mitochondria?

1. 1. It contains F1 particles
   2. Number of mitochondria is constant
   3. It is a self replicating organelle
   4. It is involved in the synthesis of protein

What is Chemically auxins?

1. 1. Indole propionic acid
   2. Indole acetaldehyde
   3. Indole carboxylic acid
   4. Indole acetic aci

Among the following, which virus has special affiliations with the tumor production?

1. 1. Polio virus
   2. Retrovirus
   3. Hepatitis virus
   4. Pox virus

Which of the following is present in all the living things?

1. 1. DNA or RNA
   2. Vacuole
   3. Cell nucleus
   4. Cell membrane

Open circulatory system contain _____.

1. 1. Haemoglobin
   2. Red Blood Cells
   3. White Blood Cells
   4. All of these

Which one of the following is a diploblastic organism?

1. 1. Crabs
   2. Hydra
   3. Earthworm
   4. Squids

Ribosomal RNA (rRNA) constitutes _____ of the total cellular RNA.

1. 1. 10-20%
   2. 80%
   3. 3-4 %
   4. 90%

Connective tissues is / are _____.

1. 1. blood
   2. cartilage
   3. bone
   4. all the above