Many bacteria are surrounded by a polysaccharide capsule, which both provides the antigens against which antibodies can act, the molecules that largely determine how virulent and pathogenic the organism and protects the main bacterial cell from the bodies defense systems.
helping to improve; promoting further development or advancement (opposed to destructive): constructive criticism. 2. of, relating to, or of the nature of construction; structural. 3. deduced by inference or interpretation; inferential: constructive permission.
Constructive criticism is achieved when criticism is given in a way that politely instructs the person being criticized on how to better accomplish the goal or task. Constructive criticism's main goal is to better a person or group, not to tear down confidence or self-esteem.