Movement of molecules across the cell membrane occurs by diffusion, active or passive transport.
<u>Explanation:</u>
Cell membrane are specifically penetrable, controlling which substances can go through, just as the amount of every substance can enter or exit at a given time. Specific permeability is fundamental to cells' capacity to get supplements, take out wastes, and keep up a steady inside condition unique in relation to that of the environment (homeostasis). Passive transport doesn't require the cell to consume any ATP and includes a substance diffusing down its concentration gradient across its membrane. In active transport, molecules cross the membrane using ATP.
Answer:
D. Calcium
Explanation:
A chelate is produced when a multidentate ligand forms two or more coordinate bonds with a metal ion present to create a ring structure.
In this case Ca++ is the metal ion forming COORDINATE bond
The enzyme at the binding site on myosin is called ATPase. The energy released during ATP hydrolysis changes the angle of the myosin head into a “cocked” position. The myosin head is then in a position for further movement, possessing potential energy, but ADP and Pi are still attached.
Given merely 40 butterflies were marked, assumed that there were multiple captures of both marked and unmarked butterflies, that the butterflies caught in traps were on the loose to be caught again. There are two mathematical solutions for this, both yielding the same answer which is 100.
• First, to each marked butterfly was taken twice (40 marked X2 = 80 captured) then of the unmarked butterflies the 120 captured must relate to 60 actual butterflies. In which 40 + 60 = 100.
• Secondly, by means of ratios in which 80/200 = 40/X. In this case X also = 100 that will result to the estimated size of the population of wilson park is 100.
Answer:
this is because the reactant substances gives equal products in the product side