Here are the matches for the items provided:
1. **This is the process by which organisms transform chemical energy into a usable form for living, growing, and reproducing.** - **Cellular respiration**
2. **An organelle found in most eukaryotic cells that transforms chemical energy into mechanical energy to carry out life processes.** - **Mitochondrion**
3. **This is a chemical process in autotrophs that uses light energy to create chemical energy.** - **Photosynthesis**
4. **This organelle contains chlorophyll in which most autotrophs transform light energy into chemical energy.** - **Chloroplast**