Answer:
The correct answer is option d. "Its conformation will change when both an ion and a small molecule bind to it".
Explanation:
The secondary active transport is a form of active transport at which a ion (typically Na+ or H+) is transferred down its electrochemical gradient to the uphill movement of another molecule. Secondary active transport takes place by the conjunctive work of membrane-bound proteins and sodium–potassium pumps. During secondary active transport, both of these proteins change its conformation when an ion and a small molecule bind to it. This change in conformation makes possible that the ions and the small molecules pass through the membrane.
Second thoughts:
I don't think doing anything in the future will be of use, because we should have already done it, and we didn't, so we have to do it now.
And what we should do is:
To find and actually use and apply new energy sources.
To do more (or less, depending on what the problem is).
To clean the mess we have done / recover the gap in the ozone layer /fix the damage that we have caused.
If you're interested:
I don't think protesting (like we're currently doing) will be of help for two simple reasons:
1. - I don't know for sure, but I don't think politicians care, like or pay attention to protests (unless it's something like the Yellow Jackets).
2. - The time we spend protesting is more valuable than we think. We should leave that aside.
Hope it helped,
BiologiaMagister
Anatomical structure, possible diet, and reproduction evidence.
To show the different levels of classification and divide among species, and different organisms on planet Earth. It also creates a universal "language" for scientists around the world when referring to organisms (cougar & puma are the same animals; different name)
Example: The American Alligator and the Chinese Alligator (look it up!) are in the same family and genus, but are not the same species.
