You are examining the rate of reaction for an enzyme called ribulase, which converts the molecule ribulose into two product molecules: isopropanol and acetic acid. Under optimal conditions, the rate of reaction is 200 molecules of isopropanol and acetic acid per second per enzyme molecule. When the molecule covenial is added to the reaction, the rate goes down to 10 molecules of each product per second per enzyme molecule.
You then slowly add an excess of ribulose and note that the rate eventually approaches the rate observed in the absence of covenial. Based on this observation, is covenial an inhibitor? If so, what kind? Explain your reasoning and explain the molecular action of covenial. Provide your answer in four sentences max.

After frida stops exercising, she continues to breathe heavily. what is most likely occurring in her body? heavy breathing during exercise has produced an oxygen surplus in her muscles. this oxygen is being transported to her lungs. this is a result of aerobic respiration. heavy breathing during exercise has produced a carbon dioxide surplus in her muscles. lactate is being transported to her liver. this is a result of aerobic respiration. strenuous exercise has caused her body to be in carbon dioxide debt, and she is breathing hard while lactate is transported to the liver. this is a result of anaerobic respiration. strenuous exercise has caused her body to be in oxygen debt, and she is breathing hard while lactate is transported to the liver. this is a result of anaerobic respiration.

Which of the following molecules could pass through the plasma membrane by simple diffusion? a. na+ ions b. glucose c. amino acids d. carbon dioxide

How is synaptic signaling different from paracrine signaling?