Question

The diagram below represents a cell in the human body. Which statement concerning the structures within this cell is accurate? 3 a Structure 1 is a chloroplast that carries out photosynthesis Structure 2 is a vacuole that contains DNA Structure 3 is a mitochondrion , where cellular respiration takes place Structure 4 is the cell membrane, which provides rigid, inflexible support for the cell

Answer 1

Based on the descriptions given, the accurate statement concerning the structures within the cell would be:

**Structure 3 is a mitochondrion, where cellular respiration takes place.**

Here’s a breakdown of why the other statements are not accurate:

- **Structure 1 is a chloroplast that carries out photosynthesis:** This statement is incorrect because chloroplasts are not found in human cells; they are present in plant cells.

- **Structure 2 is a vacuole that contains DNA:** This statement is also incorrect; vacuoles do not contain DNA. In animal cells, vacuoles are generally smaller and mainly serve as storage for nutrients and waste products, while DNA is housed within the nucleus.

- **Structure 4 is the cell membrane, which provides rigid, inflexible support for the cell:** This statement is inaccurate because while the cell membrane does provide structure and support, it is not rigid and inflexible; rather, it is semi-permeable and flexible, allowing the cell to change shape.

Thus, the only accurate statement is that Structure 3 is the mitochondrion, where cellular respiration takes place.