Question

Observe the picture given below and answer the questions that follow:

1. Is it a virus or bacterium?
2. Name it.
3. Name the disease caused by it.

Answer 1

1. The picture shows a bacterium. This is because flagella are a characteristic physical feature of bacteria. These are locomotive organs that assist the bacteria to locomote toward a food source or away from a predator.
2. The organism shown in the image is Helicobacter pylori. This is distinguishable due to its characteristic shape which resembles a helix.
3. It causes peptic ulcers by infecting the inner lining of the stomach and intestinal walls.