The answer is A, storing urine until it is eliminated.
The bladder stores urine, allowing urination to be infrequent and controlled. The bladder is lined by layers of muscle tissue that stretch to hold urine. The normal capacity of the bladder is 400-600 mL. During urination, the bladder muscles squeeze, and two sphincters (valves) open to allow urine to flow out.
The Cell Membrane. All living cells and many of the tiny organelles internal to cells are bounded by thin membranes. These membranes are composed primarily of phospholipids and proteins and are typically described as phospholipid bi-layer
Answer:
1. A
2. I
3. Sorry I am not sure.
4. I
Explanation:
1. ATP has 3 phosphate groups, T = tri aka three.
2. ATP has 3 phosphate groups and turns into ADP which as two phosphate groups because when it loses one phosphate, it releases energy.
3.
4. Passive transport does not require energy because when it passes through the cell membrane it is going with the concentration, it goes from high to low concentration. Active Transport requires energy because it is going against the concentration, low to high, so it needs energy to go from low to high concentration.
It is because all these three elements contain ionic properties and they have only one element in their outermost shell