UNIDAD 3 Relation between the systems involved in nutrition UNIT 3 Biology and Geology 3. Secondary Education Unit 3: The digestive and respiratory system

UNIDAD 3 Relation between the systems involved in nutrition UNIT 3 Biology and Geology 3. Secondary Education

UNIT 3 Systems of nutrition THE RELATION BETWEEN THE SYSTEMS INVOLVED IN NUTRITION Biology and Geology 3. Secondary Education

UNIDAD 3 Relation between the systems involved in nutrition UNIT 3 Biology and Geology 3. Secondary Education

UNIDAD 3 Relation between the systems involved in nutrition UNIT 3 Biology and Geology 3. Secondary Education

UNIDAD 3 Relation between the systems involved in nutrition UNIT 3 Biology and Geology 3. Secondary Education

UNIDAD 3 Relation between the systems involved in nutrition UNIT 3 Biology and Geology 3. Secondary Education

UNIDAD 3 Relation between the systems involved in nutrition UNIT 3 Biology and Geology 3. Secondary Education Question 2 from page 50

UNIDAD 3 Relation between the systems involved in nutrition UNIT 3 Biology and Geology 3. Secondary Education

UNIDAD 3 Relation between the systems involved in nutrition UNIT 3 Biology and Geology 3. Secondary Education Complete this table into your notebook FoodDigestive juicePlaceNutrient Complex sugar(starch) Protein Fats Water

UNIDAD 3 Relation between the systems involved in nutrition UNIT 3 Biology and Geology 3. Secondary Education FoodDigestive juicePlaceNutrient Complex sugar(starch) Saliva Bile, pancreatic juice and intestinal juice Mouth Small intestine ProteinGastric juice(pepsin)Stomach Water Fats

UNIDAD 3 Relation between the systems involved in nutrition UNIT 3 Biology and Geology 3. Secondary Education FoodDigestive juicePlaceNutrient Complex sugar(starch) Saliva (amylase) Pancreatic juice and intestinal juice Mouth Small intestine Glucose ProteinGastric juice(pepsin) Peptidase Stomach Small intestine Aminoacid FatsLipase Bile Small intestineFatty acids WaterIt is absorbed by the intestinal villi Water

UNIDAD 3 Relation between the systems involved in nutrition UNIT 3 Biology and Geology 3. Secondary Education Activities Do a chart with all the substances produced in the digestive system and their functions What is the difference between physical and chemical digestion? Explain the absorption process

UNIDAD 3 Relation between the systems involved in nutrition UNIT 3 Biology and Geology 3. Secondary Education

UNIDAD 3 Relation between the systems involved in nutrition UNIT 3 Biology and Geology 3. Secondary Education What is the difference between physical and chemical digestion? Physical processes have two main objectives: to reduce the size of the food and to facilitate the substances go down through the digestive tract. Chemical processes are in charge of transforming food into nutrients thanks to different substances that digestive juices contain.

UNIDAD 3 Relation between the systems involved in nutrition UNIT 3 Biology and Geology 3. Secondary Education Explain the absorption process It is the final stage of the digestive process. It takes place in the small intestine where the nutrients obtained thanks to digestion, are absorbed to be used by cells to carry out the metabolism. The absorption of simple glucids, fatty acids and aminoacids is carried out through intestinal villi and protusions (microvilli, specific cells of the intestine). From these cells the nutrients reach the blood vessels and will be transported all over the body. The large intestine absorbs most water, mineral salts and vitamins.

UNIDAD 3 Relation between the systems involved in nutrition UNIT 3 Biology and Geology 3. Secondary Education Quiz time: 1.- Which of this process is essential for the digestion of oil: Then, explain how the process occurs a.- Production of enzyme pepsin b.- Secretion of bile c.- Mastication d.- Swallowing

UNIDAD 3 Relation between the systems involved in nutrition UNIT 3 Biology and Geology 3. Secondary Education Quiz time: Which of this process is essential for the digestion of oil: a.- Production of enzyme pepsin b.- Secretion of bile c.- Mastication d.- Swallowing

UNIDAD 3 Relation between the systems involved in nutrition UNIT 3 Biology and Geology 3. Secondary Education Quiz time: Bile is a substance secreted by the_______. This substance is stored in the_______ ______________ It is poured into the _______________ once fats reach the small intestine. Bile acts as an emulgent, this means that collaborates in the digestion of fats.

UNIDAD 3 Relation between the systems involved in nutrition UNIT 3 Biology and Geology 3. Secondary Education Quiz time: Bile is a substance secreted by the__liver_____. This substance is stored in the___gall bladder____ It is poured into the __duodenum_ once fats reach the small intestine. Bile acts as an emulgent, this means that collaborates in the digestion of fats.

UNIDAD 3 Relation between the systems involved in nutrition UNIT 3 Biology and Geology 3. Secondary Education Question Why does your throat burn when you vomit?

UNIDAD 3 Relation between the systems involved in nutrition UNIT 3 Biology and Geology 3. Secondary Education Question Why does your throat burn when you vomit? Because of the hydrochloric acid that is a component of the gastric juice.

UNIDAD 3 Relation between the systems involved in nutrition UNIT 3 Biology and Geology 3. Secondary Education Question Athletes consume glucose when they are performing intense exercises. What are the advantages of consuming glucose instead of certain foods like bread or potatoes?

UNIDAD 3 Relation between the systems involved in nutrition UNIT 3 Biology and Geology 3. Secondary Education Question Athletes consume glucose when they are performing intense exercises. What are the advantages of consuming glucose instead of certain foods like bread or potatoes? Glucose is a monosaccharide and it is not necessary to digest it. It appears quickly in the blood and it goes quickly to the muscles. Bread or potatoes have starch ( a polysaccharide) and needs to be digested to release the molecules of glucose. It will take a lot of time to have the glucose available for the muscles.

UNIDAD 3 Relation between the systems involved in nutrition UNIT 3 Biology and Geology 3. Secondary Education Question 4

UNIDAD 3 Relation between the systems involved in nutrition UNIT 3 Biology and Geology 3. Secondary Education Glucose absorption……………Small intestine Chyme formation………………Stomach Sodium bicarbonate secretion………Duodenum Water absorption……………………Colon Formation of chyle…………………Duodenum and first part of the jejunum

UNIDAD 3 Relation between the systems involved in nutrition UNIT 3 Biology and Geology 3. Secondary Education Question 4 from page 41 Mechanical digestion Chemical processes Nutrients absorption Egestion Mouth Pharynx Oesophagus Stomach Small intestine Large intestine Anus

UNIDAD 3 Relation between the systems involved in nutrition UNIT 3 Biology and Geology 3. Secondary Education Mechanical digestion Chemical processes Nutrients absorption Egestion Mouth Chewing, grinding withTeeth Salivary glands secrete saliva X X Pharynx Oesophagus Peristaltic movements Stomach Peristaltic activity, powerful muscles Small intestine Large intestine Anus

UNIDAD 3 Relation between the systems involved in nutrition UNIT 3 Biology and Geology 3. Secondary Education Mechanical digestion Chemical processes Nutrients absorption Egestion Mouth Chewing, grinding withTeeth Salivary glands secrete saliva No Pharynx Oesophagus Peristaltic movements No Stomach Peristaltic activity, powerful muscles Gastric juices Small intestine Bile Pancreatic juice Intestinal juice Large intestine Anus Water absorptionFormation of faeces

UNIDAD 3 Relation between the systems involved in nutrition UNIT 3 Biology and Geology 3. Secondary Education Mechanical digestion Chemical processes Nutrients absorption Egestion Mouth Chewing, grinding withTeeth Salivary glands secrete saliva (amylase) No Pharynx Oesophagus Peristaltic movements No Stomach Peristaltic activity, powerful muscles Gastric juices (Hydrochloric acid and pepsin) No Small intestine Movements of it transport the chyle Bile (emulsionate fats) Pancreatic juice Intestinal juice Absorption of nutrients through intestinal villi No Large intestine Anus Peristaltic movements transport the faeces NO Water absorptionFormation of faeces