Proteins also have structural or mechanical functions, such as actin and myosin in muscle and the proteins in the cytoskeleton<span>, which form a system of scaffolding that maintains cell shape. Other proteins are important in cell signaling, immune responses, </span>cell adhesion<span>, and the cell cycle. hope that helped</span>
Answer:
I'm going to say grass
Explanation:
Didn't post food chain but grass is a very commonly used producer.
1. During intense exercise, where the energy output required from the cell exceeds the supply of glucose from the blood.
2. In an ischemic event, where perfusion is either disrupted through a clot, hemorrhage or systemic hypotension.
