Answer:
proteins
Explanation:
proteins embedded in the cellular membrane act as ushers. They help carry nutrients from bloodstream into cell. Glucose,amino acids,fats,and vitimans use carrier proteins to get inside cells.
Answer:
If they ask if you want to smoke, simply say no. If they don't respect your decision or try to force you, then call a trusted friend or adult and leave
:
the stages are denial, anger, bargaining, depression and acceptance
