Choose the incorrect answer for question 25 and 26 Your recent upload has I x -p
ID: 132449 • Letter: C
Question
Choose the incorrect answer for question 25 and 26
Your recent upload has I x -post 1/JustUnlocked 1 #/details the number of muscle fibers in the motor unit that are active d) Ant tagonistic pairs of muscles are muscles that work against each other and can be found in animals with endoskeletons, exoskeletons and hydrostatic skeletons 25) Digestion (mammal) a) An increase in fatty acids in the lumen of the duodenum would lead to an increase in cholecystokinin b) Activation of pepsin in the stomach and trypsin in the duodenum are both examples of positive c) Digestion of triglycerides by lipases leads to the formation of chylomicrons in the lumen of the small d) Ingestion of food with a high carbohydrate content would lead to increases in both endocrine and secretion and a decrease in gastrin secretion. feedback intestine prior to absorption. exocrine secretions from the pancreas. 26) Digestion (human) a) Most of the water entering the duodenum through the pyloric sphincter comes from salivary and gastric secretions and not from ingested water In a healthy young adult, the volume of water absorbed in the large intestine per day is less than the volume of ingested water b) c) All water absorption in the small intestine occurs by osmosis. d) In the small intestine, the volume of water absorbed from the lumen is greater than the volume of water secreted into the lumen. 27) Dietary Needs (mammal) a) Per unit weight, fats release twice as much energy as carbohydrates b) At room temperature. saturated fats and fatty acids tend to exist in solid form, whereas unsaturated fats and fatty acids tend to be in liquid form c) Essential amino acids are amino acids that humans can synthesize but are not readily available in the dietExplanation / Answer
25. Option b is correct. A positive feedback process involve release of something in presence of excess amount of target while a negative feedback process involve inhibition of release. Here in the presence of excess amount of food activate both secretion and thus this is the example of positive feedback.
26. Option a is correct. About 9 liters of fluid pass through the gastrointestinal system each day, and only about 2 liters are ingested, the rest represent secretions from the system itself. About half, 3.5, liters is secreted from the exocrine glands, the salivary glands, the stomach and the liver, the other half is secreted by the epithelial cells of the of the digestive tract it self.