These viral particles, also known as virions, consist of two or three parts: the genetic material made from either DNA or RNA, long molecules that carry genetic information, a protein coat, called the capsid, which surrounds and protects the genetic material.
Answer:
Diffusion. ... Diffusion is the movement of molecules from a region of higher concentration to one of lower concentration. This movement occurs because the molecules are constantly colliding with one another. The net movement of the molecules is away from the region of high concentration to the region of low concentration.
Explanation:
The correct answer is: C) Metabolism consists of all the energy transformation reactions in an organism.
Metabolism can be defined as the sum of all chemical reactions that occur in living organisms. The functions of metabolism include:
• the conversion of food to energy necessary for proper cell function (transformation of the chemical energy stored in food molecules into energy that can be used for cellular processes)
• the conversion of food to building blocks (amino acids, free fatty acids, nucleotides, monosaccharaides) for macromolecules (proteins, lipids, nucleic acids, carbohydrates)
• the elimination of nitrogenous wastes.
Reactions of metabolism can be catabolic (breaking down) or anabolic (synthesis) and also spontaneous (energy release) and non-spontaneous (require energy).
Answer:
Renin is secreted from juxtaglomerular kidney cells, which sense changes in renal perfusion pressure, via stretch receptors in the vascular walls. The juxtaglomerular cells are also stimulated to release renin by signaling from the macula densa.
Explanation:
