Organ Systems.

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Presentation transcript:

Organ Systems

Levels of Organization Plants and Animals are both Eukaryotic organisms – composed of multiple cell types that all work together to allow the organism to function properly. The levels of organization: (from simplest to most complex) Simplest Most Complex

Cells Cells are the basic units of life! You have about 200 different types of cells that make up the trillions inside you. Each different type of cell must work with each of the other types to allow an organism to grow, develop, repair, reproduce and remain healthy.

Cells & Their Functions Plant Cells Animal Cells Red blood cells – carry oxygen White blood cells – fight disease & infection Neuron – carry electrical messages Xylem – moves water Phloem – moves nutrients Parenchyma– regulates water loss. Sclerenchyma – protection & support. Collenchyma – photosynthesis & support.

Cells Working Together Cells of the same kind and work to do the same job create Tissue. Plant Tissues: Vascular Tissue = xylem & phloem Ground Tissue – parenchyma, collenchyma & sclerenchyma cells Dermal Tissue – Parenchyma & sclerenchyma cells Animal Tissues: Connective Tissue – bone, fat & blood Nervous Tissue – neurons Smooth Muscle Blood Tissue – red and white blood cells, platelets & plasma

Tissues Working Together Groups of similar tissues that work together to perform a job create Organs. Plant Organs Organ Tissues Leaf Epidermis & vascular systems Flower Stem Roots

Tissues Working Together Organ Tissues Lungs Connective tissue, muscular tissue & nervous tissue Heart Muscular tissue, connective tissue & nervous tissue Stomach Intestines Human Organs Lungs Brain Ears Liver Heart Pancreas Stomach Large Intestine Kidneys Bladder Small Intestine

Organs Working Together Organs working together to perform a set of related tasks create Organ Systems. Shoot System Root System

Organ System Functions - Plants Shoot System Functions Root System Function Photosynthesis Reproduction Storage Transport Hormones Anchorage Absorption Storage Transport Hormones Shoot System Root System

Human Organ Systems Excretory Immune

Organ System Functions - Human Protects and supports the body. Supports the body and enables it to move. Receives, breaks down, transports and absorbs food throughout the body. Carries needed substances to the cells of the body while carrying waste products away from the cells. Brings oxygen into and removes carbon dioxide from the body. Skeletal System Muscular System Digestive System Circulatory System Respiratory System

Organ System Functions - Human Collects and removes waste products from the body. Communicates information throughout the body and controls the body’s response to stimuli. Produces chemical messengers, hormones, that help to regulate and control many of the body’s internal functions. The body’s defense system against disease causing organisms. Produces new individuals of the same type. Excretory System Nervous System Endocrine System Immune System Reproductive System

Organ Systems Working Together Organ systems working together to perform all the basic functions of life create an Organism. Human Plant