LA ORGANIZACIÓN DEL CUERPO HUMANO 3º ESO “Biología y Geología” SECCIONES EUROPEAS IES “IZPISÚA BELMONTE” Profesora: Milagros López García

Recuerda Todos los seres vivos están constituidos por CÉLULAS. La célula es la unidad mínima dotada de vida. “Es la unidad estructural, funcional y genética de todos los seres vivos” (Teoría celular)

Remember The cell is the unit of organization of living beings and what makes them work. The cell is the smallest living unit. “The cell is the fundamental unit of structure and function in living organisms. All cells arise from pre-existing cells by division” (Cell theory)

Remember Las células realizan las tres funciones vitales: se nutren, se relacionan con el medio y se reproducen. “Cells carry out three vital functions: nutrition, interaction and reproduction”

Remember There are two types of cells: Prokaryotic cells: Bacteria Eukaryotic cells: Algae, Protozoa, Fungus, Plants and Animals

Review All living beings are made from cells. Unicellular organisms are made from one cell. Multicellular organisms are made from many cells.

We are multicellular and eukaryotic organisms. Remember We are multicellular and eukaryotic organisms.

Remember CELL STRUCTURE Most cells contain: a nucleus to control cell a thin membrane to control what goes in and out of the cell a liquid cytoplasm where chemical reactions happen

ESPECIALIZACIÓN CELULAR Los organismos pluricelulares están formados por diferentes tipos de células. Cada tipo celular está adaptado a realizar una función concreta en la que se especializan. SPECIALISED CELLS “Multicellular organisms are made of different types of cell. Each type of cell has its own function and is adapted to carry out this function”

DIFFERENT HUMAN CELLS

NIVELES DE ORGANIZACIÓN EN EL CUERPO HUMANO Células: Unidad estructural de todo ser vivo Tejidos :Conjunto de células del mismo tipo especializadas en una función determinada Órganos: Conjunto de diferentes tejidos que desempeñan una función concreta Aparatos o sistemas: Conjunto de varios órganos cuyas funciones coordinadas realizan una función mayor. Organismo: Conjunto de todos los aparatos o sistemas.

LEVELS OF ORGANIZATION IN HUMAN BODY Cells are the building blocks of all living organisms. A tissue is a group of similar specialised cells working together. An organ is made from different tissues working together An organ system is a group of organs working together A living organism is a group of organ systems working together.

DIGESTIVE SYSTEM

RESPIRATORY SYSTEM

CIRCULATORY SYSTEM

EXCRETORY SYSTEM

NERVOUS SYSTEM

ENDOCRINE SYSTEM

LOCOMOTIVE SYSTEM

SENSE ORGANS

REPRODUCTIVE SYSTEM