Answer: its a model describing features of a cells plasma membrane.
Is your answer.
Explanation: //Give thanks(and or Brainliest) if helpful (≧▽≦)//
I believe the answer is A
I think The second step of cellular respiration is the Kreb's cycle and it occurs in mitochondrial matrix.
First step of cellular respiration is glycolysis and it occurs in the cytoplasm of a cell.
I am not really confident about my answer.
If I am wrong please correct me. <span />