Answer:
Step-by-step explanation:
For question 2 I think the answer is Endocytosis. 'Exo' means out and 'Endo' means in.
For question 4 I think it's A.
If you have ever played it, think of Agario. The bigger the molicule (or circle), the slower it moves.
I don't know about the others.
Hope this helps :)