Question

Draw a labelled diagram of a bacterial cell.

Answer 1

Labelled diagram of a bacterial cell:

Cell Capsule:

1. It is a slime layer composed of a thick polysaccharide.
2. It covers the outside of the cell wall.

Cell wall:

1. Cell walls of bacteria are made up of glycoprotein murein.
2. Its function is protection.

Cell membrane:

1. It is the uppermost selectively permeable membrane composed of phospholipids, proteins, and carbohydrates.
2. It helps in the transportation of substances

Cytoplasm:

1. It contains ribosomes, mesosomes, vacuoles, etc.
2. It helps in cellular growth, metabolism, and replication.

Nucleoid:

1. The nuclear material is present in form of single, circular double-stranded DNA in bacteria.

Plasmid:

1. It is an extrachromosomal DNA.

Flagella:

1. It helps the cell to move in clockwise and anticlockwise, forward and also helps the cell to spin.