Proteins are the building blocks of DNA and RNA
Enzymes are catalysts that can be used more than once. If a substance needs to get broken down then it can use the corresponding enzyme to attach itself and break it down into simpler substances. After this is gone, the next substance might come up and attach itself to the enzyme like a lock-and-key model.
Therefore the answer is A) Enzymes accelerate chemical reactions without getting used up in the process.
Brains of alzheimer victims display plaque, which are BETA AMYLOID PROTEIN and tangles, which are TAU PROTEIN. Alzheimer is a neuro-degenerative disease in which brain cells are progressively destroyed, leading to memory loss and dementia.
If you look up “quill bot” you can copy sentences from the internet, paste it in there, then press paraphrase and it’ll change the words
