Describe the similarities between enzymes and membrane receptors

Identify the type of energy used in each action. the flexing of an arm muscle: a signal transduction process by a neuron: a ball at the top of a hill: 1. electrical energy 2. mechanical energy 3. gravitational potential energy

In the presence of oxygen, glycolysis is followed a. the krebs cycle b. lactic acid fermentation c. alcoholic fermentation d. photosynthesis

4emphysema is a health condition in which the lungs can no longer expel carbon dioxide normally. as a result, a person who has emphysema may have high blood acidity levels. the body process that would attempt to return the blood ph to normal so that cells could function properly is called a. active transport b. acidosis c. homeostasis d. adaptation