Biología 3 ESOOnline version TEST DE REPASO TEMARIO BIOLOGÍA 3 ESO (CUERPO HUMANO) by Violeta CM 1 What is the function of the cartilagenous ring located on the trachea? a Helping to expel any solid that could have entered the respiratory tract b To absorb the oxygen on the air c To prevent the solids that must go to the esophagus from go into the pharinge d To filter the air 2 What is the mechanism by which oxygen and carbon dioxide are interchaged? a By diffusion, which means that they need a protein to cross the walls b By active transport c By diffusion, which means the molecules just cross blood and alveole walls due to differences on concentration d By generating vesicules on the alveole membrane 3 What would happen if we breathed carbon dioxide-rich air? a Nothing, breathing would be normal b There won´t be optimum oxygen exchange from eritrocytes to alveole, as concentration difference is low. c More oxygen would be exhange as the body needs it more than normal 4 it is advisable to breathe through the nose rather than through the mouth? a Both are equally good, there is no difference b Better breathing by mouth, the air is humidified because of the saliva c Better breathing by the nose, the air is humidified, and mucous and hair filter it d Better breathing by nose, so we can smell everything 5 When is the epiglotis CLOSE? a When we eat or drink, so that solid and liquids do not go through the larynge b Epiglotis does not move c When we breath, so the air only goes to lungs 6 What determinates the entrance of air in the lungs? a The pressure differences generated by expansion of the thoracic cavity due to intercostal muscle and diaphragm relaxation b The pressure difference generated by relaxation of intercostal muscle while diaphragm contracts c The pressure differences generated by expansion of the thoracic cavity due to intercostal muscle and diaphragm contraction d The pressure difference between left and right lung 7 Which of this digestion-related juices DOES NOT content enzymes? a Gastric juice b Bilis c pancreatic juice d Intestinal juice 8 What is the main function of the bilis? a To emulsionate lipids so they can be digest by enzymes b To emulsionate glucose so it can be digest by enzimes c To mix the quime with the acis gastric juice d To ease protein absortion by the intestine 9 Which of these substance are present in the saliva and what are them for? Escoge una o varias respuestas a Amylase, a starch digestive enzyme b Bilis, a lipid digestion substance c Lubricating liquids, so that the bolus travels easily trough the digestive tract d Lysozyme, which destroys bacteria that may be present on food 10 How does the bolus travel through the esophagus? a It just flows along the esophagus b Due to contractions of intercostal muscles c Due to peristaltic movements 11 About this image, indicate the WRONG answer a The pancreas generated pancreatic fluid and secrets it on the duodenum b The duodenum contains glands which generate digestive enzymes c The gallbladder release bilis in to the stomach through the bile duct d The sodium bicarbonate contained on the pancreatic juice neutralized the acid generated by stomach 12 What is the name of the sphinters that control the entrance and exit on the stomach? a pylorus and cardia respectively b epiglotis and pylorus respectively c cardia and pylorus respectively d bile duct and cardia respectively 13 About the gastric fluid, select the right answer a hydrochloric acid creates an acid enviroment and activates pepsie enzyme b No enzymes are secreted c It is not harmful for the rest of the body organs d It completes the food digestion
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