Answer:
Calcium.
Explanation:
Muscle cells are the important for the body as they are involved in the bodily movement. Three different type of muscle are smooth muscle, cardiac muscle and skeletal muscle.
The sarcoplasmic reticulum contains the stored calcium in the muscle cell. The calcium is important ion that plays an important role in the muscle contraction. The actin and myosin protein functioning also depends on the the calcium ion.
Thus, the correct answer is option (B).
Answer:
Explanation:
Food sources of vitamins include plants and animals. Vitamins are only found in living things; however, there is not one food source that can provide all the vitamins needed for growth and development of a healthy body. A variety of foods, therefore, must be eaten. For example, potatoes are a good source of Vitamin C, but they are not a good source of Vitamin D. Restricting a diet to foods that are limited in their vitamin content or variety can lead to deficiencies. Because vitamins are essential to the body's utilization of energy, deficiencies can cause a wide range of health problems, ranging from brittle fingernails to heart failure. The seriousness of the effects is due mostly to the length of time that a person has had a deficiency. Cells can function for a period of time without the needed vitamins. Cases of life-threatening deficiencies are rare in nations such as the United States because of the abundance of food sources available to people of all economic levels.
Answer:
The Let's Move initiative is based on the following five pillars: 1) Creating a healthy start for children, 2) Empowering parents and caregivers, 3) Providing healthy foods in schools, 4) Improving access to healthy, affordable foods, and 5) Increasing physical activity.
