I explain why onion cells lack a chloroplast. I also discuss if human cheek cells have an irregular shape.
Why onion cells lack a chloroplast:
Well, the first thing you need to think about is : Do onion cells need chloroplasts? Chloroplasts are the power plant of plant cells, they use light energy to make glucose. Energy can not be destroyed or created, it is merely transformed (this is the first law of thermodynamics). ...
Onion and human cheek cell irregularities are examined.