Waste Removal

EPISD Middle School Science Standards Based Curriculum 2015-2016

Methods of Waste Removal

Cellular Respiration- the process by which cells turn food into energy.

Body systems – specific functions of some body systems help get rid of waste in our bodies.

Plant Photosynthesis – the process by which plants turn carbon dioxide, water, and sunlight into glucose(sugar).EPISD Middle School Science Standards Based Curriculum 2015-2016

Cellular Respiration

Cells need fuel for energy.

Sugar is the most common fuel cells use, although cells also use protein, other carbohydrates, and some other sources as well.

EPISD Middle School Science Standards Based Curriculum 2015-2016

Cellular Respiration

Oxygen is an element that is involved in the process of turning fuel into energy.

Cells use oxygen during cellular respiration

EPISD Middle School Science Standards Based Curriculum 2015-2016

MITOCHONDRIA carry out Cellular Respiration

Use the Cells Alive! link to find mitochondria in an animal cell:http://www.cellsalive.com/cells/animcell_archive.htm

Mitochondria are the “powerhouse” of the cell and process fuel into energy.

EPISD Middle School Science Standards Based Curriculum 2015-2016

Photosynthesis

Photosynthesis is the process during which plants use sunlight, water, and carbon dioxide (CO2) to create their own food (glucose).

CO2

EPISD Middle School Science Standards Based Curriculum 2015-2016

PhotosynthesisOxygen (O2) is the waste product released

by plants during photosynthesis.

CO2 O2

EPISD Middle School Science Standards Based Curriculum 2015-2016

ChloroplastsChloroplasts are the organelles in plant

cells that carry out photosynthesis

Use the CELLS Alive! link to find chloroplasts in a plant cellhttp://www.cellsalive.com/cells/plntcell_archive.htm

EPISD Middle School Science Standards Based Curriculum 2015-2016

Circulatory system

Our circulatory system helps remove waste products from bodies by transporting them to other systems.

Those other systems release the waste products from our bodies.

EPISD Middle School Science Standards Based Curriculum 2015-2016

Respiratory systemOur respiratory systems take in oxygen so

that our cells can survive.

The circulatory system transports oxygen from our lungs to the rest of our bodies.

What is the waste product is brought back to the lungs andreleased from our bodiesby the respiratory system?

Carbon dioxide is the waste product removed by the respiratory system

EPISD Middle School Science Standards Based Curriculum 2015-2016

Digestive systemOur digestive system helps turn food into

energy for our bodies.

What body system helpsremove waste produced by the digestive system?

Our EXCRETORY system helps release the waste from our bodies

EPISD Middle School Science Standards Based Curriculum 2015-2016

Other body system?

Can you think of another body system that helps remove waste??

Our Integumentary System (SKIN) releases waste

through sweat.

EPISD Middle School Science Standards Based Curriculum 2015-2016