Question

The microscopic image of the organism was analyzed in a drowning case. Which is correct about them?

• A. Contains silica and chlorophyll point
• B. Are microscopic unicellular bacteria
• C. Present only in bone marrow
• D. Are not resistant to acids and heat

Hint:

Diatoms, which contain silica and chlorophyll, are important markers in forensic medicine, especially in drowning cases, as they can be detected in the victim's tissues and organs.

Answer 1

The Correct Option is A

To determine the correct statement about the organism from the microscopic image in a drowning case, we need to analyze the characteristics of typical aquatic organisms that are frequently involved in such scenarios. The provided options are:

1. Contains silica and chlorophyll point
2. Are microscopic unicellular bacteria
3. Present only in bone marrow
4. Are not resistant to acids and heat

Let's examine each option:

• Diatoms, a common microscopic organism in aquatic environments, contain silica in their cell walls. They also possess chlorophyll due to their ability to photosynthesize, as they are a type of algae. Therefore, this statement is true.
• Some microscopic organisms are bacteria; however, they do not typically contain silica or chlorophyll.
• Organisms involved in drowning cases that are found in bone marrow are primarily diatoms, not present solely in bone marrow.
• Diatoms are resistant to acids and heat, which is why they can persist in decomposed bodies.

The option that correctly describes the organism in question is: Contains silica and chlorophyll point.