Na: positive; OH: negative
Answer:
The plasma membrane, or the cell membrane, provides protection for a cell. It also provides a fixed environment inside the cell, and that membrane has several different functions. One is to transport nutrients into the cell and also to transport toxic substances out of the cell.
Explanation:
This is what the cell membrane does so if any of these are an answer choice then use process of elimination to figure out which one is correct
That would be genetic engineering. This study involves the use of DNA and genes.
Answer:
D. Earth spins in space
Explanation:
Day and night are due to the Earth rotating on its axis, not its orbiting around the sun.
Exercise intensity and duration are the main factors that influence the contribution of carbohydrates vs. fats as fuel to make ATP. Exercise intensity increase cells use a higher ratio of carbohydrate to make ATP.
ATP obtained from lipid oxidation is over twice the amount obtained from carbohydrate and amino acid. During the high intensity exercise , carbohydrate are the major fuel source. During low intensity exercise fat is the primary source of fuel your body uses.
Oxidation reactions in the cytoplasm and mitochondria of cell produced ATP and carbohydrate , proteins and fats undergo a series of metabolic reactions collectively called cellular respiration.
To learn more about cellular respiration here
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