<span>The
building blocks of protein are amino acids. Amino acids produced by the cells
are synthesized in order to produce proteins. Vitamin B9(Folate) and Vitamin
B12(Cobalamin) are the two B-vitamins needed in amino acid synthesis. These
can be taken through dietary supplements.</span>
Answer: 4 g/cm cubed
Explanation: density is mass divided by volume so 36 g divided by 9 cm cubed is 4 g/cm cubed
<h2>Capillary Smooth Muscle Contraction</h2>
Explanation:
- Blood flows through blood vessels, which form the closed system called the circulatory system. Like a system of roads, the circulatory system has its highways, back roads, and alleyways, which we call arteries, veins, and capillaries
- Capillaries are the alleyways that extend and branch into every tissue of your body, ensuring that every cell has a blood supply. It is here, in the capillary beds, that your cells pick up oxygen and nutrients and drop off carbon dioxide and wastes
- Muscles are composed of two major protein filaments: a thick filament composed of the protein myosin and a thin filament composed of the protein actin. Muscle contraction occurs when these filaments slide over one another in a series of repetitive events
- All muscles contract as a result of interaction between special proteins within the myocytes. Skeletal, cardiac, and smooth muscle cells synthesize the contractile proteins actin and myosin, which are needed for muscular contraction
