the brain stem controls involuntary actions such as breathing, heart beating and blinking.
Answer:
I think the answer is NADH
Nutrients enter a cell up the concentration gradient by the process of active transport.
Explanation:
The cell must be lysed (broken open) to release the nucleus. the nucleus (if present) must also be open to release the DNA. at that point the DNA must be protected from enzymes that will degrade it, causing shearing. [[ once the DNA is released, it must then be precipitated in alcohol...]
