Science MCQs

Cleaning a wound with soap and water right away helps prevent infection.

Diabetes is a non-contagious disease; it cannot be spread from person to person.

Penicillin was the first antibiotic, derived from the Penicillium fungus.

Lysozyme, found in tears and saliva, breaks down bacterial cell walls.

Sebum is an unsaturated fatty acid in perspiration that provides a protective film on the skin.

B-lymphocytes provide humoral immunity by producing antibodies.

T-lymphocytes provide cell-mediated immunity by directly fighting pathogens.

The genome is the genetic material (DNA or RNA) of a virus.

Ticks live on the outside of the host's body and are ectoparasites.

The spleen is a purple-colored organ located in the upper left abdomen.