Repair and Maintenance. Protein is termed the building block of the body. ...
Energy. Protein is a major source of energy. ...
Hormones. Protein is involved in the creation of some hormones. ...
Lysosomes are the organelles in charge of digesting and breaking down all matter in a cell that needs to be broken down, varying from food and energy molecules to viruses and bacteria.
Answer:
Photosystems are functional and structural units of protein complexes involved in photosynthesis. Together they carry out the primary photochemistry of photosynthesis: the absorption of light and the transfer of energy and electrons.
Explanation:
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Group 2
Excretory system implys the removal of waste.
