In some bacteria,the outer layer is a loose layer,which is known as........

The structures present in large numbers in the cytoplasm are:

Read the following statements regarding Mesosomes:
$I -$ They are in the form of vesicles,tubules,and lamellae.
$II -$ They are formed by the extensions of the cell wall.
$III -$ They help in increasing the enzymatic content.
$IV -$ They are associated with respiration and secretory processes.
Which of the following options is correct for Mesosomes?

Nucleic acids in chromosomes in bacteria are

The correct sequence of layers of the bacterial cell envelope is:

Which cell lacks a nucleus and cytoplasm within the plasma membrane?