32.2 digestive system 1 st -turn-in yesterday’s handout! 2 nd -on a sheet of clean notebook paper...
TRANSCRIPT
32.2 Digestive System
1st-Turn-in yesterday’s handout!
2nd-On a sheet of clean notebook paper
a. Complete the data analysis on page 985 . Read the information and answer questions 1 and 2.
b. P. 995-996 Answer # 1, 2, 4, 5, 6, 7, 10, 12-18.
3rd-notes on problems of the Digestive System
It is Eagle Time- Bell Rings at 9:50
32.2 Digestive System
• In your notes- Define the terms on page 977 and page 982
• Add- the three functions of the pancreas (p. 980)
• On page 978-List the seven enzymes, their location, and their function.
32.2 Digestive System
Enzymes-Proteins that lower the activation energy needed to digest nutrients.
On page 978-List the seven enzymes, their location, and their funtion.
Put this in your notes.
32.2 Digestive System
• Digestion of carbohydrates begins in the mouth.
• Digestion of proteins occurs in the stomach. • Digestion of fats and sugars occur in the
small intestine.
32.2 Digestive System
Build you model of the digestive system
Label each organ-stomach, pancreas, esophagus, liver, small intestine, large intestine
Work quietly at your seat.Please do not waste the tape-use very small pieces
32.2 Digestive System
KEY CONCEPTThe digestive system breaks down food into simpler molecules.
32.2 Digestive System
32.2 Digestive System
32.2 Digestive System
mouth
esophagus
liver
gallbladder
large intestine
small intestine
rectum/anus
Several digestive organs work together to break down food.
• The digestive system breaks down food into energy cells can use.
• After digestion is complete, nutrients are absorbed and transported to all cells.
• Undigested materials are eliminated as liquid and solid wastes.
32.2 Digestive System
Digestion begins in the mouth and continues in the stomach.
• Mechanical and chemical digestion break down food. • Peristalsis moves food through the organs.
esophagus
muscles contract
muscles relax
food
stomach
32.2 Digestive System
Digestion is completed in part of the small intestine.
• Most digestion takes place in the duodenum. • The pancreas, liver, and gallbladder aid in digestion.
– pancreas helps digest fat and protein – bile from the liver/gallbladder helps digest fats
liver
bile
bile
gallbladder
duodenum
pancreas
enzymes
chyme
stomach