LIFE(ORIGIN, EVO, ETC)

• Divine or Special Creation Theory - Life comes from a supernatural being called God.
• Cosmozoic or Interplanetary Theory (Panspermia) - Life comes from outer planets in a form of a resistant spore propelled by radiation pressure, reaching the Earth and starting the first form of life.
• Abiogenesis or Spontaneous Generation - Life comes from non-living things.
• Philosophical Theory of Eternity - Life has no end and no beginning
• Marine Theory - Life originated from the sea.
• Physico-chemical Theory (Chemosynthetic Theory) - The most widely recognized explanation holds that a series of chemical reactions resulted in a mass of living protoplasm, which gradually changed to give rise to the current forms of life.
• Homeostasis- It is the ability to maintain internal balance, or normal state of a body
• Concentration gradient - the flow of materials, whether solvent or solute, is from greater to lesser concentration
• Kidney regulate salt and water balance.
• Plasma membrane
• plasma membrane- It is a semi permeable, phospholipid bilayer with hydrophobic tails and hydrophilic heads
• Plasma membrane- It controls substances that come in and out of the cell.
• Passive Transport - no need for oxygen and don't use ATP
• Passive transport - molecules move from an area of high concentration to an area of low concentration
• Diffusion- random movement of substances or molecules from an area of high to low concentration.
• Facilitated Diffusion- movement of specific particles through specific carrier proteins situated in the membrane
• Osmosis- It is the movement of water across membranes
• Active Transport - Cells use energy
• Movement from low to an area of high concentration
• Protein Pumps - It transport proteins that require energy to do work
• Endocytosis - It is taking bulky substances into a cell.
• Exocytosis- It is taking bulky substances out of a cell.
• Bulk Transports - It is the transport of large molecules.
• Phagocytosis - cell eating
• Pinocytosis-cell drinking
• Hypotonic - cell swell, burst, turgid, cytolysis
• Hypertonic - cell shrink, shrivel, plasmolysis
• Isotonic - normal, no change , dynamic equilibrium
• Organization - Living organisms consist of one or more cells that are connected to one another.
• Unicellular- They are one-celled organisms
• Examples include bacteria, protists like amoeba, algae, are unicellular.
• Multicellular- These are organisms composed of many cells.
• Examples include all plants, all animals, most fungi, and some protists.
• Atom- It is the building block of matter.
• Proton- positively charged particles
• Neutron - no charge particles
• Electron- particles negatively charged
• Compound - Two or more atoms joined in chemical bonds
• Epithelial Tissue is made of one layer of cells and is found in most gradular structures.
• Connective tissue provides support and for connection.