Describe the role of calcitonin in regulating calcium phosphorus level of blood.

Describe the role of Carotenoids.

Describe the role of Chlorophyll-a.

Describe the role of Chlorophyll-b.

Describe the role of accessory pigments during photsynthesis.

Describe the role of light with respect to Photolysis of water

Describe the role of light with respect to ATP synthesis

State the role of calcium ions in contraction and relaxation of muscles.

Describe the role of light with respect to Release of Oxygen

Write the names of hormones and the glands secreting them for the regulation of following functions. Controls calcium level in blood.

Role of calcium in muscle contraction is ……….