• Feeding• Reproduction• Respiration• Excretion

• Locomotion• Sensitivity• Growth• Osmoregulation

Found in fresh water, especially in decaying organic matter.

HOMEWORK

Questions

1) State 3 main functions of organelles.

2) Explain the relationship between the density of mitocondria and active cells.

CELLSCELLSTISSUESTISSUES

ORGANSORGANSSYSTEMSSYSTEMS

ORGANISMSORGANISMS

CELLSCELLS

TISSUESTISSUES

Muscles & Tissues

cells

4 types of tissues

Made up of cells which are similar in structure and functions and all are working together to perform a specific activity.

ORGANSORGANS

Brain

Liver

Eye Made up of tissues that work together to perform specific functions.

Some organs perform more than one functions

SYSTEMSSYSTEMS

Digestive System Respiratory System

Circulatory System Excretory System Sensory System

Also known as a organ systems.Groups of two or more organs that work together to perform specific functions for the organisms.

Skeletal System Muscular SystemNervous System

Lymphatic System Reproductive SystemEndocrine System

ORGANISMSORGANISMS

CELLSCELLS

TISSUESTISSUES GROUND TISSUE

3 types of tissues

Storage , Metabolism , Support

DERMAL TISSUE

Covering , Protection

VASCULAR TISSUE

Transport Water & Food

ORGANSORGANS 4 types of organs

SYSTEMSSYSTEMS

2 types of systems

SHOOTS SYSTEMS

ROOTS SYSTEMS

ORGANISMSORGANISMS

HOMEWORK

Questions

1) For each systems (organs systems) in human, state the main components and its functions.

• fluid surrounding the cells• known as tissue fluid @ interstitial fluid• fills narrow spaces between cells• cells receive nutrients and oxygen from bloodstream through tissue fluid

4 components of blood:i) Plasmaii) White Blood Celliii) Plateletsiv) Red Blood Cell

Blood flows in capillaries

Blood plasma squeezed through capillary walls into spaces between cells

Blood plasma squeezed through capillary walls into spaces between cells

temperature

pH value Osmoticpressure Glucose level

NORMAL CONDITIONSNORMAL CONDITIONS

STIMULUS(above normal)

STIMULUS(below normal)

RECEPTORS detects stimulus RECEPTORS detects stimulus and start corrective and start corrective mechanismmechanism

RECEPTORS detects stimulus RECEPTORS detects stimulus and start corrective and start corrective mechanismmechanism

NORMAL CONDITIONSNORMAL CONDITIONS

NEGATIVE feedback

NEGATIVE feedback

Normal Glucose LevelNormal Glucose Level

Glucose level increase

Glucose level decrease

PANCREAS detects high blood PANCREAS detects high blood glucose level. Secrete more glucose level. Secrete more INSULININSULIN

PANCREAS detects low blood PANCREAS detects low blood glucose level. Secrete more glucose level. Secrete more GLUCAGON.GLUCAGON.

Normal Glucose LevelNormal Glucose Level

Convert Glucose Glycogen

Convert Glycogen Glucose

Muscles cells

Producemovement

Neurone

Conductnerve

impuls

Red Blood Cell

Transportoxygen

White Blood Cell

Destroysmicroorganism

Palisade mesophyllcell

Maximisephotosynthesis

Xylem & Phloem

Transportwater & food