Made mostly of collagen, bone is living, growing tissue. Collagen is a protein that provides a soft framework, and calcium phosphate is a mineral that adds strength and hardens the framework. This combination of collagen and calcium makes bone strong and flexible enough to withstand stress.
Psychrotrophic bacteria are defined as those that grow at 7Â°C, although their optimal growth temperature is higher. During cold storage after milk collection they dominate the flora, and their extracellular enzymes, mainly proteases and lipases, contribute to the spoilage of dairy products.
2. Some of the harmful types of bacteria are those which can cause disease or adversely affect one's health, and these include: Mycobacteria, which are rod-shaped, and neither Gram-positive nor Gram-negative microorganisms that can cause infections of the lungs, skin and other parts of the body.The most common diseases associated with these bacteria are leprosyand tuberculosis.ycobacteria, which are rod-shaped, and neither Gram-positive nor Gram-negative microorganisms that can cause infections of the lungs, skin and other parts of the body. The most common diseases associated with these bacteria are leprosyand tuberculosis.