Presentation on theme: "Characteristics of Life Period 6. Organized & Cells Vocab ● Organization- A high degree of order within an organism’s internal and external parts and."— Presentation transcript:
Characteristics of Life Period 6
Organized & Cells Vocab ● Organization- A high degree of order within an organism’s internal and external parts and in its interactions with the living world ●Cell- Smallest unit that can perform all life’s processes ●Unicellular- Is a single cell or has one cell ●Multicellular- Has more than 1 cell ●Organs- Structures that carry out specialized jobs within an organ system ●Tissues- Groups of cells that have similar abilities that allow an organ to function ●Organelles- Tiny structures that carry functions necessary for a cell to stay alive ●Biological Molecules- The chemical compounds that provide physical structure and that bring about movement, energy use, and other cellular functions
Organized & Cells ●All living organism has a order to them even if it may not look it ●Multicelled beings have organs and tissue to make specific functions happen ●Organ cells allow the cells to do their basic functions happen
Growth & Development Growth and Development Notes: -all living things must grow and develop -Development is when a living thing is maturing -Cell Division is the formation of 2 new cells from the existing one -Example: -when cell division occurs for unicellular organisms, the only change following it is cell enlargement -when cell division occurs for multicellular life, they mature through cell division, cell enlargement, and development
Response to Stimuli ●Physical or chemical change in the internal or external environment ●Organisms must respond and react to changes in the environment to stay alive
Change Through Time ●Individual organisms experience many changes during their lifetime, but their basic genetic characteristics do not change ●Organisms evolve or change through time
Homeostasis ●The maintenance of a stable level of internal conditions ●Organisms have regulatory systems that maintain internal conditions ●Example: ○ An owl’s temperature is 40 degrees celsius an owl’s cell burns fuel creating body heat at a regular temperature ○ When cold their feathers fluff up to insulate air to maintain body temperature
Reproduction -All organisms produce new organisms. Example: The glass frog produces and lays a large amount of eggs. Even though only a few of those eggs reach adulthood and then they successfully reproduce. -During reproduction, organisms transmit hereditary information to their offspring. - A short segment of DNA that contains the instructions for a single trait of an organism is called a Gene. Example: the gene is like a large library.
Metabolism ●Metabolism is the sum of all the chemical reactions that take in and transform energy and materials from the environment. ●ex. a process called photosynthesis lets plants, algae, and bacteria to use the suns energy to make sugar molecules. ●Some organisms obtain their energy from other organisms by consuming them. ●ex. an owls metabolism lets the owl extract and modify the chemicals trapped from its prey then uses the energy to fuel activities and growth.