The capsule of a bacterial cell is a sticky gelatinous structure made up of protein and:

Explanation

Option B is correct.The capsule of a bacterial cell is a sticky gelatinous structure made up of carbohydrates. The capsule is a layer of polysaccharide material that surrounds the cell wall of some bacteria. It is composed of repeating units of sugar molecules. The capsule is a dynamic structure that can be produced or shed by the bacteria in response to environmental conditions. The capsule has a number of functions, including: Protecting the bacteria from dehydration Helping the bacteria to adhere to surfaces Evasion of the host immune system Some bacteria, such as Streptococcus pneumoniae, have a thick capsule that is essential for their virulence. The capsule protects the bacteria from phagocytosis, a process by which white blood cells engulf and destroy bacteria. The other options are not components of the bacterial capsule: Lipids are a type of organic molecule that is made up of fatty acids and glycerol. They are found in the cell membrane and other cellular structures. Nucleotides are the building blocks of DNA and RNA. Nucleotides are joined together by phosphodiester bonds to form DNA and RNA molecules. The order of the nucleotides in DNA and RNA determines the genetic code. Alcohols are a type of organic molecule that contains a hydroxyl group (OH). They are found in a variety of foods and beverages.