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Excretory system (Urine exits the body) is person #9

Using the slides. Record information for each system in your journal title and write the hint if you don’t already have it.(only red words need written in your notes). Excretory system (Urine exits the body) is person #9 What is the Function and organs involved in this system?

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Excretory system (Urine exits the body) is person #9

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  1. Using the slides. Record information for each system in your journal title and write the hint if you don’t already have it.(only red words need written in your notes) • Excretory system (Urine exits the body) is person #9 What is the Function and organs involved in this system? • Digestive system (digests food) is person # 10 What is the Function and organs involved in this system?

  2. Digestive/Excretory System • Without my system, the body would not be able to obtain energy and nutrients. • I break down all the food stuffed in my mouth into usable nutrients and expel the wastes.

  3. Excretory System (urine Exits) Function • Filterswaste from blood • Eliminates (gets rid of) these waste products as liquid waste

  4. Excretory Organs • Kidneys – filters your blood up to 400 times a day removing waste • Ureters – connects the kidneys to the bladder • Bladder – Stores liquid waste until it is ready to be released • Urethra – guides the liquid waste out of the body

  5. Digestive System Function: • Breaks down food into pieces small enough to be absorbed into our blood • These small molecules of food can be taken into our cells to be used for making energy

  6. H2O becomes O+ H H • During digestion complex compounds such as sugar or starch is broken down into simpler compounds for the body to absorb.

  7. Digestive Organs • Mouth – chews food to break it into smaller pieces • Esophagus – moves food from the mouth to your stomach using smooth muscle (think tube of toothpaste) • Stomach – mixes and crushes food into smaller pieces, secretes substances to break down food chemically and kill bacteria

  8. More Digestive Organs • Small Intestine – chemical digestion breaks food down into particles small enough they can be absorbed into the bloodstream, where most nutrients are absorbed • Large Intestine – absorbs water and nutrients, processes remaining waste to be eliminated from the body

  9. Digestive System • Types of Digestion • Mechanical – food being physically broken down into smaller pieces (chewing, peristalsis in the stomach) • Chemical – large molecules of food broken down into smaller molecules by substances made in the body (stomach acid, enzymes)

  10. Cracker Lab • You will be examining the differences between chemical and mechanical digestion. You will be taking 2 bites of your cracker. Use an online stopwatch • Make sure you take 2 even bites • Eat one bite of the cracker using only chemical digestion (saliva) record how long it takes for it to liquefy/digest • Eat another bite using mechanical digestion (chewing) and chemical digestion (saliva) record how long it takes for it to liquefy/digest. • Write the answers on the digestion page. • Which method was quicker? • Which did a better job? • Why do you think this? Support your opinion with evidence from the cracker lab.

  11. In your notebook on the left page, across from your digestive system.Create a minimum of SIX step illustration with description of what this cracker will now experience going through your digestive system. AKA. the process of digestion.EXAMPLE: step one teeth tear and grind food down into smaller pieces and saliva enzymes in the mouth breakdown the starch in the cracker. • Digestive system video • http://kidshealth.org/en/kids/dsmovie.html to help you with your illustrations and identifying the steps of digestion.

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