Genetic Engineering in Microbes and Medicines
Useful Microbial Factories
Why Microbes Are Used
Microbes grow quickly, are relatively simple to culture, and can be engineered to make valuable molecules. This makes them useful as tiny factories.
Medicine Production
Engineered bacteria or yeast can produce human proteins such as insulin, growth factors, or vaccine components. After production, the product is purified for medical use.
Basic Workflow
Scientists identify a useful gene, place it in a suitable vector, introduce it into cells, grow the cells, and then collect the product.
Why This Is Powerful
Living cells can manufacture complex molecules with high efficiency, sometimes more effectively than chemical factories.
Why are bacteria useful in genetic engineering?
Bacteria are convenient hosts because they grow fast and can be genetically modified.
Correct answer: They can be grown and modified relatively easily
What is one product engineered cells can make?
Engineered microbes can make insulin and other medically useful proteins.
Correct answer: Human insulin
What is a bioreactor used for?
A bioreactor provides a controlled environment for cell growth and production.
Correct answer: Growing cells under controlled conditions to make a product.
Why must products be purified after production?
Purification helps ensure the final product is safe and usable.
Correct answer: To remove cells and impurities before use.