AP BIOLOGY

Detailed explanation-1: -All living things are composed of cells, which then further subdivide based on the presence or absence of the nucleus, into two types: eukaryotic cells (Greek, Eu=true, karyo=nut, nucleus)-these cells are present in all the human, animal and plants with a clear, distinct nucleus.

Detailed explanation-2: -Humans are multicellular, and we are composed of eukaryotic cells. Eukaryotic cells all have a membrane-bound nucleus that contains DNA, as well as other membrane-bound organelles such as mitochondria.

Detailed explanation-3: -The prokaryotic cells are mostly unicellular organisms which do not perform complex physiology. Example Amoeba. Humans belong to the kingdom Animalia where all the organisms are Eukaryotic. Due to the complex organisation of cells, humans are eukaryotic.

Detailed explanation-4: -All cells fall into one of these two broad categories. Only the single-celled organisms of the domains Bacteria and Archaea are classified as prokaryotes-pro means before and kary means nucleus. Animals, plants, fungi, and protists are all eukaryotes-eu means true-and are made up of eukaryotic cells.

Detailed explanation-5: -A eukaryotic cell has a nuclear membrane. It has mitochondria, Golgi bodies, cell wall. It also contains locomotory organs such as cilia and flagella. The nucleus has a DNA that carries all the genetic information.