All options are true. However, the line "Enzymes are regulated by molecules that bind to regions other than their active site" is not 'always' true, since that line only describes non-competitive inhibition. There is another form of inhibition called competitive inhibition where an inhibitor binds directly to the active site of an enzyme, slowing the rate of reaction.
The corresponding strand would be UACUCGGCACGUUUGACA
The students would most likely propose that similar charges repel.
Answer:
The cells adapted by modifying their shapes.
Explanation:
The larger the cell, the smaller the surface / volume ratio. This can be a problem because it causes the cell to have difficulty in absorbing nutrients, in addition to having difficulties in releasing substances that are not relevant inside. To circumvent these difficulties and have a good functioning, many large cells adapt by modifying their shapes to increase their surface. In this way many large cells are presented with a thin and elongated shape, others create several appendages on their surface.
Speed up.
Enzymes are used to speed up chemical reactions by being a catalyst. Without enzymes, every action we performed would be slowed down dramatically.
Hope this helps!