PLEASE HELP BIOLOGY!!!! (35 POINTS!)

1.) Is it possible to observe a plant cell without chloroplasts? Why or why not?
2.) In which type of your cells would you find large quantities of mitochondria and why?
3.) How does passive transport occur if the cell doesn’t expend any energy?
4.) How do transport proteins move molecules against a concentration gradiant in active transport?
5.) How do endocytosis and exocytosis utilize the plasma membrane of a cell?