Answer:
about 5 billion years ago
Explanation:
Our solar system formed about 5 billion years a go from a dense cloud of interstellar gas and dust.
some important molecules are too large to pass through the cell membrane.
Hope this helps!
-Payshence
Answer: Neutral
Explanation:
“6.5 to 7.5—neutral. over 7.5—alkaline. less than 6.5—acidic, pH less than 5.5 are considered strongly acidic.“
Answer:
4 ATP molecules
Explanation:
Normally, about 11 ATP molecules are generated as the result of Beta-Oxidation of saturated fatty acid in Kreb's Cycle. But the total removal of acetyl-CoA under certain aerobic condition decreases the overall yield and approximately 4 ATP molecules comes out from each removal of acetyl-CoA.
Mitochondria is the powerhouse of the cell
Hope this helped
