AP BIOLOGY

Detailed explanation-1: -A protobiont is defined as an aggregate of abiotically produced organic molecules surrounded by non unit membrane. For example, Coacervates (the large spherical colloidal aggregates of macromolecules), microspheres (colloidal aggregates of protein bubbles) are protobionts.

Detailed explanation-2: -Probionts : The first formed cells are called probionts or were considered as the aggregate of abiotically produced organic molecules surrounded by membranes. For example, Coacervates are the large spherical aggregate of macromolecules and Microspores are the colloidal aggregate of proteins considered as probionts.

Detailed explanation-3: -a) Because they are surrounded by a membrane, protobionts can establish & maintain an internal environment that is chemically distinct from that of their surroundings.

Detailed explanation-4: -Protobionts are systems that are considered to have possibly been the precursors to prokaryotic cells. A protobiont is an aggregate of abiotically produced organic molecules surrounded by a membrane or a membrane-like structure.

Detailed explanation-5: -They are the first life type on earth! Protobionts are a collection of chemicals which are trapped within a lipidic membrane layer. Protobionts contain RNA and were the first building steps for the evolution of life on earth.