Question

Which of the following accurately describes the presence of centrioles in different types of cells?

Option 1: Centrioles are present in animal cells but absent in plant cells.
Option 2: Centrioles are found in both animal and plant cells.
Option 3: Centrioles are present in plant cells but absent in animal cells.
Option 4: Centrioles are absent in both animal and plant cells.

Answer 1

Centrioles are present in animal cells but absent in plant cells. They are involved in cell division within animal cells, while plant cells use an MTOC for this purpose.

Step-by-step explanation:

The presence of centrioles in different types of cells can be accurately described by stating that they are present in animal cells but absent in plant cells. In more detail, animal cells contain centrosomes and lysosomes, with the centrosome being a complex that includes a pair of centrioles, which are key components involved in cell division.

Centrioles are cylindrical structures composed of microtubules and are essential for organizing the chromosomes before cell division to ensure each daughter cell receives the correct number of chromosomes. On the other hand, plant cells do not have centrioles.

Instead of centrioles, plant cells use a microtubule organizing center (MTOC) to form the spindle apparatus during mitosis. Additionally, plant cells have features such as a cell wall, chloroplasts, and a large central vacuole, which are not found in animal cells.