Packet #2 Anatomy & Physiology Version Properties of Life Packet #2 Anatomy & Physiology Version

Introduction All living things are parts of larger systems of matter and energy. This energy & matter continually recycle through systems as energy flows through the systems. Knowing this fact, what defines living things (biotic) from non-ling things (abiotic) Properties of life.

Obeying the Lays of Universe Properties of Life

Obey Physical & Chemical Laws of Universe All living things MUST obey the laws of the universe Law of Conservation of Mass Living things are involved in the process of recycling matter or are recycled into a different form of matter Law of Conservation of Energy Energy cannot be created or destroyed but changed from one form to the next

Order Properties of Life

Order All living things maintain a high degree of order and complexity Even the smallest living thing—a cell

Descendants from Common Ancestor** Properties of Life

Descendants from a Common Ancestor** All living things are descended from a common ancestor** Intriguing Questions Where did life originate? How did humans originate? How did life come into existence? Does having similar physical traits mean that there is a common ancestor?

Theories on Origin of Life I The Creation Theory A supreme being, God, created the universe and all within

Theories on the Origin of Life II The Theory of Evolution Chemical evolution Life arose from an assembly of large molecules Followed by the historic development of a related group of organisms

Theories on the Origin of Life III Panspermia Life was formed elsewhere in the universe and was placed on the newly formed planet Earth Theory that microorganisms or biochemical compounds from outer space , extraterrestrials, are responsible for originating life on Earth and possibly other parts of the universe where suitable atmospheric conditions exist

Regulate & Use of Energy Response to Stimuli Properties of Life

Regulate Use of Energy & Respond to Environment All life depends on chemical reactions that take place within cells Within cells and organisms are series of chemical reactions metabolic pathways, sometimes in response to the environment, that are regulated by enzymes. The production of energy inside cells occur efficiently because of the use of enzymes. Relate to autotrophs & heterotrophs.

Reproduction Properties of Life

Reproduction I All living organisms share same genetic code Reproduction allows the genetic code to be passed parent to offspring during reproduction.

Reproduction II On the hierarchy of biology, reproduction occurs at two levels Organism Reproduction Sexual Asexual Cellular {Eukaryotic Cells Only} Meiosis Cell Cycle How does all of this relate to humans? 11/14/2018

Reproduction III Humans, within marriage, reproduce sexually (sex) at the organism level. However, before humans, within marriage, are able to reproduce, reproduction must first occur at the cellular level. Asexual cellular reproduction Somatic cells Sexual cellular reproduction Sex cells Sperm Egg 11/14/2018

Osmoregulation Properties of Life

Osmoregulation Maintenance of an optimal, constant osmotic pressure/potential in the body of a living organism. Deals with water

Communication Properties of Life

Communication Intra (within) or inter (between) Communication not only between different organisms but more importantly within the organism itself Nerve cells communicating

Animation (Movement) Properties of Life

Animation In regards to living things, movement occurs within humans are various levels of the hierarchy. Including but not limited to… Cells Organism

Change Form & Function {Growth & Development} Properties of Life

Change Form & Function Growth & Development All living organisms change form and function at different stages of their life cycles Grow Divide Develop Differentiate

Death Properties of Life

Death Death Absence of previous 9 properties

Review