1. Why are lysosomes important to health of cells? A. They break down worn-out cell parts that are no longer needed.

2. Which of the following organelles provide structure and rigidity to a plant cell?

B. Cell wall

3. What would happen to a plant if the chloroplast in it's cells became damaged?

A. The plant would not make glucose and oxygen

4. A cell sends messages to itself via .

B. Autocrine signalling

5. Which activity produces an action potential in nerve cells?

D. exchange of irons

There all correct trust me T_T​