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.
Answer:
X-ray crystallography diffraction imaging, nuclear magnetic resonance spectroscopy imaging and frozen electron microscopy three-dimensional reconstruction technology.
Explanation:
http://www.creative-biostructure.com/protein-crystallization-and-structure-determination_13.htm
A and D seem like the best answers
<span>Based on the mentioned symptoms, the disorder that best describes his condition is Spontaneous pneumothorax and surgery is needed in order to overcome it. The presence of air in the form of small packs between the lungs and chest is a formal way of describing this condition and this may lead to damage in the lungs.</span>
