Biology Questions

Deep fried foods are carcinogenic because they are rich in fats.

Oxygen is transported throughout the body via hemoglobin in the red blood cells. Hence, most of the oxygen transported by the blood is bounded to hemoglobin.

The statements true about viruses are :

1. The capsid enters the host cell if the virus is enveloped.

2. Enveloped viruses bud from the host cell. 

3. HIV contains reverse transcriptase.

4. A retrovirus contains RNA.

Allows for expansion or contraction of the trachea. Hence, so large masses of food can pass through the esophagus during swallowing.

Study of Life in outer space or search of life external to Earth is known as Exobiology.

Salts and sugars work to preserve foods by creating a Hypertonic environment.

Plants grow in size both in height and in grith. Enlargement  of cells already present cannot contribute much to the growth. Only addition of more and more cells could increase the size of the plant considerably.

The purpose of hydrogenating unsaturated fats is to make them more solid at room temperature as it is easy store the product.