Which of the damaged cells can not be repaired

Fill in the blanks- _______ is the nutrient which helps to repair the damaged cells and tissues and create new ones.

Four healthy people in their twenties got involved in injuries resulting in damage and death of a few cells of the following. Which of the cells are least likely to be replaced by new cells-

Four healthy people in their twenties got involved in injuries resulting in damage and death of a few cells of the following . Which of the cells are least likely to be replaced by new cells?

Four healthy people in their twentoies got involved in injuries resulting in damage and death of few cells of the following .Which of these cells are least likely to be replaced by new cells?

Cytolysins which damages the cell membranes of microbes are secreted by :-

Which of the following can damage optic nerve leading to blindness, if taken internally?

Which air pollutant damages the cell membrane system of plant cells?