Why do we say that "an enzyme is reusable"?
a) the enzyme does not actively take part in the reaction. it just indicates that the reaction is complete.
b) enzymes react with the substrate molecules to form products and become denatured in the process.
c) enzymes ensure that the reaction continues without inhibition even if conditions such as temperature and ph are changed.
d) the products of the reaction are released from the active sites of the enzyme, allowing other substrate molecules to bind with the sites.

Option D, The products of the reaction are released from the active sites of the enzyme, allowing other substrate molecules to bind with the sites.

Explanation:

Enzymes are either chemical/biochemical/biological substances that do not take part in a reaction but assist in carrying out a chemical reaction.

Usually all enzymes have an active site on which the substrate  attaches by forming some minor surface bonds and once the chemical reaction is complete the product formed at the active site is released thereby making it available for new attachments.

Hence, option D is correct.

picture a world where computers are building made-to-order personalized robotic arms and synthetic organs, drones are circulating above mars! due to the rapid growth of technology, the future has never been more unpredictable, and it presents a huge challenge in education: we are teaching students how to work in a future that we have never been unsure of. it is widely predicted that in eight years’ time, there will be more jobs in the fields of science, mathematics, technology and engineering than in any other discipline. and, as the technology continues to develop, it will soon become clear that addressing social problems will involve more innovative thinking, and analytical and technical knowledge than ever before. undeniably, there are no subjects that encourage innovative and creative thinking, deep thought, problem solving and independence more than the stem subjects. while it is widely commented on that there is a need to reimagine the ways stem subjects are taught in schools by embracing a more interactive and innovative approach to appeal to more students, it should come as no surprise that some of the most reputable educational organizations in the world are already implementing changes to embrace stem. harvard, for example, announced in 2014 that they were increasing their computer science faculty by over 50% and has since introduced computer science as a core subject for all freshmen. the urgency of supporting stem subjects at a young age is becoming more relevant than ever, as adopting a keen interest in the curricula needs to happen early. however, beyond the age issue is one of gender.

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