Excusa

Living Things Reproduce

A very important part of the life of living things is the ability and opportunity to reproduce, to create offspring. Reproduction is the process of one or more livingthings creating another living thing. Your parents created you. A mother and father dog reproduce, creating puppies. By reproducing, living things are able to pass on their characteristics to anothergeneration.
Reproducción de las cosas de la vida

Una parte muy importante de la vida de los seres vivos es la capacidad y la oportunidad para reproducir, crear descendencia. La reproducción es elproceso de uno o más seres vivos crear otro ser viviente. Tus padres te creadas. Una madre y un padre perro reproducen, crear cachorros. Reproduciendo, seres vivos son capaces de transmitir suscaracterísticas a otra generación.

All living things are made up of units called Cells
Cell theory
All living things are composed of cells. New cells arise only from pre-existing cells.
Cell MembraneStructure
A. Boundary between the outside of a cell and the inside of a cell (cytoplasm).
B. Phospholipid bilayer (polar heads and hydrophobic tails) + proteins
C. Semi-permeable
D.At body temperature the phospholipid bilayer is liquid (olive oil).
E. Proteins can move.
F. Fluid Mosaic Model.
Cell Membrane Function
A. Cell membrane is selectively permeable.B. Small molecules that are lipid soluble can diffuse in or out (oxygen and carbon dioxide).
C. Water is not lipid soluble but can go through channels.
D. Other molecules and ions usecarriers.

Proteins function
A. Cell-cell recognition
B. Communication between cells.
C. Sticking cells together (cell adhesion molecules).
Cellular Organelles
A. Organelles aresmall compartments like rooms in a house.
B. Organelles are in cytosol. Organelles + cytosol = cytoplasm
C. Nucleus has a double membrane with nuclear pores. Stores DNA.
D. Ribosomes-...