And enzyme is a large protein molecule.
<u>"</u><u><em>False" because the pure substances are made up of single elements or compounds.</em></u><u> </u>Hope this helps! Thank you for posting your question at here on Brainly. Have a great day! -Charlie
Answer:
The cell membrane contains pores to allow nutrients to enter and waste to leave the cell. cell membrane is SELECTIVELY PERMEABLE which means that the cell membrane controls what enters and leaves the cell. cell membrane protects all cells.
Explanation:
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The answer is; burning unleaded gasoline
Unleaded gasoline does not reduce carbon emissions. The lead was added to fuel ideally for vehicles to reduce the knocking of engines. Lead in its chemical structure also increased fuel octane levels. When lead was discovered to be a neurotoxin, it was banned as an additive in fuel in most countries.
If they have cell walls it will be hard for the material to get in and out of the cell resulting in cell death or damage