(about 10x larger than prokaryotic cells; DNA is enclosed in a nuclear membrane) Bacterial cells: -have all characteristics of life -lack membrane bound organelles
Kingdom Prokaryote/Monera: contain bacteria & archaea 2. Kingdom Protista: contain algae & protozoa 3. Kingdom Fungi: contain fungi 4. Kingdom Plantae: contain plants 5. Kingdom Animalia: contain animals
cytology Eukaryotic- Cell Membrane: -mosaic composed of large molecules of proteins and phospholipids (fats) -regulates the passage of nutrients, waste products and secretions in or out of the cell
One way in which an archaean would differ from a bacterium is that the archaean would possess no: a) DNA in its chromosome b) peptidoglycan in its cell walls
Eukaryotic- Cell Membrane: -mosaic composed of large molecules of proteins and phospholipids (fats) . -regulates the passage of nutrients, waste products and secretions in or out of the cell . - selectively permeable. Eukaryotic- Nucleus. -"command center": controls functions of entire cell .
Prokaryotic- Flagella: -thread-like, protein appendages that enable bacteria to move . -motile bacteria usually possess flagella, never cilia . -monotrichos: single flagella. -amphitrichous: one or more at each end . -lophotrichous: lot at one end . -peritrichous: all over entire surface .
Bacterial cells: -have all characteristics of life . -lack membrane bound organelles . -includes cells of archaea & bacteria kingdoms (part of prokaryotes) Viruses: -not cells at all (not prokaryotic or eukaryotic) -depend on energy and metabolic machinery of a host cell to reproduce.
Ribosomes are made up of a small & large subunit
spirochetes may have two flagella-like fibrils known as axial filaments
-the length of time it takes for one bacterial cell to split into two cells is referred to as the organism's generation time. (which varies from 10 mins to hours)
Eukaryotic Mitochondria. -most of ATP is made in mitochondria through respiration . -known as the "power plant" of cell . -energy is released from the breakdown of glucose and other nutrients . -previously a prokaryotic cell. Eukaryotic- Plastids. -found in plant along w/mitochondria. -energy producing organelle .