Answer:
Primary active transport
Explanation:
Primary active transport is the transport in which molecules are moved against their gradient, with direct use of ATP as an energy source. Na/K pump is an example of primary active transport: Na ions are transported out of cell, K ions are moved into the cell. This pumps maintain concentrations of those ions and also creates voltage across the cell membrane, which can be used for the secondary active transport of other molecules (e.g. glucose).
Answer: what is Acetyl CoA is made from pyruvate under aerobic conditions in the mitochondria. The process of conversion is irreversible. I don't know the other half I'm sorry.
Explanation:
Acetyl CoA Used by the citric acid cycle as a fuel. Carbon acetyl groups are converted to CO2 and ATP and electrons (carried by NADH and FADH2) create even MORE electrons. Acetyl CoA is made from pyruvate under aerobic conditions in the mitochondria. The Process of conversion is irreversible.
Clouds form as a result of the condensation of water vapor in the atmosphere. They are made of tiny droplets of water. Clouds tend to form between 3pm and 6pm because this is when the region starts to loose or has completely lost the heat form the daily sun. Water vapor will condense once temperatures are low or are decreasing.