Answer:
The best answer to fill in the blank in the question: Active transport is the protein-mediated movement of substances _____, would be: Against a concentration gradient.
Explanation:
In cellular activity there are several means by which a cell may either introduce, or expell, molecules, ions, gases, waste, or water to survive. While some of these elements may enter a cell´s intracellular environment, and leave it, relatively easily, some require the help of proteins present in a cell membrane in order to either enter or exit the cell. Ions, especially, given that they are vital to maintain the cell´s capability of reacting to different stimulus, have to be particularly balanced out and controlled. In order to do so, the cells membrane possesses a series of proteins inserted between the layers that work as both gated channels and also as transporters that will allow the ions to move as they are required by the cell. Active transport then is the active passage by these proteins on the cell´s membrane of ions against their concentration gradients.
Answer:
A. Banks will increase the interest they charge for loans and increase the interest they
pay out for deposits.
Explanation:
If the Fed raises interest rates, it increases the cost of borrowing, making both credit and investment more expensive. This can be done to slow an overheated economy
Answer:
true
Explanation:
mass gatherings where many decide governmental matters
Answer:
A decrease in the quantity of pork rinds demanded
The correct answer is B.
A mineral is defined as a naturally occurring substance that has a definite chemical composition and crystal structure.
In order for a substance to be called a mineral, it must have all the four characters described in the definition.
- a mineral is always a solid and has a definite shape and volume.
- most minerals are made of two or more elements chemically combined to form a compound. It may also be made of a single element e.g. gold, copper or sulphur.
- all minerals have a characteristic crystal structure.
- minerals are grouped according to their chemical composition or makeup
