The organisation of living things
THE CHARASTERISTICS OF LIVING THINGS
Vital functions
Reproduction: enables living things to produce offspring
Interaction: is the ability to sense changes in the enviroment and inside the body
Nutrition: Tranforming food into nutrients
The cell
The size of living things
Macroscopic things: can see with the naked eye
Microscopic things: (microorganisms) there are so small that we canot see with the naked eye, we need a microscope
Plant cell
Animal cell
Nucleus: it contains the material necesary to reproduce the cell
Cell membrane: outer shell and takes part of the interaction function
Cytoplasm: it is a viscous liquid inside the cell
Organelles: manofacturing chemicals and obteining energy
Chloroplast: capture light and produce nutrents
Cell wall: rigid structure surrounds the cell membrane and protect the cell
Nucleus: it contains the material necesary to reproduce the cell
Membrane: separeted the nucleus from the cytoplasm
Unicellular and multicellular organism
Multicellular organism: composed of two or more cells
Unicellular organism: composed of a single cell
Levels
Organs : The grouping together of a set of tissues
System : several organs that perform a function
Tissue: a set of cells
Organism : grouping of all these levels
Cells: the first level
Types of cells
Epithelial cells: insulate the body and protect it
Nerve cell : Transmit information
Muscle cell: allows muscles to move
How the body works
Human beings and health: healthy lifestile
Human beings and interaction: Interaction collect informitation from our surroundings and respon to it this systems and organs are involved
Human beings and nutrition: various systems work together to perform nutrition
Respiratory system: takes the oxigen we need from the air and expels carbon dioxide
Circulatory system: carries the blood with oxigen and nutrients alll over the bodie
Digestive system: Converts food into simpler substances
Excretory system: clean the blood of waste products
Have good hygiene habits
Have a good posture
Do enough physical exercise
Spend time with family and friends
Eat a balanced diet
The nervous system:Prepares a appropriate order
Musculoskoletal system: recieves an order and respond with a movrment
Sense organs: capture information of our surroundings