Answer:
D
Explanation:
Enzymes can only fit into the base it was made for.
Answer: Option B
Explanation: The thin layer that forms the outer covering of the cell is known as the cell membrane. It is composed of the lipid bilayer which as embedded proteins.
This membrane is selectively permeable which means it allows only specific molecules to pass through them.
The main function of cell membrane is to protect the cell from the outer environment and by the invasion of harmful bacteria and viruses.
cells all feature a nucleus, and their organelles are enclosed inside
I wanna say it’s b but if not I’m so sorry !