Q: What is the process of breaking down food into simpler substances?
A: Digestion
Q: Where does digestion begin in the human body?
A: Mouth
Q: Which enzyme is present in saliva?
A: Amylase ptyalin
Q: What is the function of saliva in digestion?
A: Starts digestion of starch
Q: What is the tube that connects the mouth to the stomach?
A: Esophagus
Q: What is the wave-like movement that pushes food through the esophagus?
A: Peristalsis
Q: What is the name of the muscular sac that stores food temporarily?
A: Stomach
Q: Which acid is found in the stomach?
A: Hydrochloric acid HCl
Q: What enzyme in the stomach digests proteins?
A: Pepsin
Q: What protects the stomach lining from acid?
A: Mucus
Q: Which organ produces bile?
A: Liver
Q: Where is bile stored?
A: Gallbladder
Q: What is the role of bile in digestion?
A: Emulsifies fats
Q: Which organ secretes digestive enzymes and hormones like insulin?
A: Pancreas
Q: What are the finger-like projections in the small intestine?
A: Villi
Q: What is the main site of nutrient absorption?
A: Small intestine
Q: Which organ absorbs water and forms feces?
A: Large intestine
Q: What is the final part of the digestive system?
A: Anus
Q: What organ is both endocrine and exocrine in function?
A: Pancreas
Q: What is the largest gland in the human body?
A: Liver
Q: What enzyme digests fats?
A: Lipase
Q: What enzyme breaks down proteins in the small intestine?
A: Trypsin
Q: Which juice contains trypsin lipase and amylase?
A: Pancreatic juice
Q: What is the pH of the stomach?
A: Around 1.5 to 3.5
Q: What juice does the small intestine secrete?
A: Intestinal juice succus entericus
Q: Which enzyme converts maltose to glucose?
A: Maltase
Q: Rennin helps digest what in infants?
A: Milk protein casein
Q: Which enzyme digests nucleic acids?
A: Nuclease
Q: What is chyme?
A: Semi digested food in stomach
Q: What is the role of secretin hormone?
A: Stimulates pancreas to release bicarbonate
Q: What causes acidity in the stomach?
A: Excess HCl
Q: What is inflammation of the liver called?
A: Hepatitis
Q: What is diarrhea?
A: Frequent watery stools
Q: What causes jaundice?
A: Excess bilirubin in blood
Q: What organ is removed in an appendectomy?
A: Appendix
Q: What vitamin is synthesized in the large intestine?
A: Vitamin K
Q: Which condition is caused by the lack of digestive enzymes?
A: Indigestion
Q: What is lactose intolerance?
A: Inability to digest lactose
Q: What is the function of the epiglottis?
A: Prevents food entering windpipe
Q: What are the three parts of the small intestine?
A: Duodenum jejunum ileum
Q: What is the first part of the small intestine?
A: Duodenum
Q: Which part of the small intestine is in the middle?
A: Jejunum
Q: What is the last part of the small intestine?
A: Ileum
Q: What are the main parts of the large intestine?
A: Cecum colon rectum appendix
Q: What is the first part of the large intestine?
A: Cecum
Q: Into what are proteins broken during digestion?
A: Amino acids
Q: Into what are fats broken during digestion?
A: Fatty acids and glycerol
Q: Into what are carbohydrates broken during digestion?
A: Simple sugars
Q: Which enzyme in saliva begins digestion of starches?
A: Amylase
Q: What is the largest structure of the digestive system?
A: Gastrointestinal tract
Q: Where does the GI tract begin and end?
A: Mouth to anus
Q: What is the approximate length of the GI tract?
A: About 9 meters
Q: What are the five basic tastes?
A: Sweet sour salty bitter umami
Q: What prevents food from entering the windpipe during swallowing?
A: Epiglottis
Q: What connects the throat to the stomach?
A: Esophagus
Q: What is the largest lymphoid organ in the body?
A: Spleen
Q: Which organ is known as the graveyard of red blood cells?
A: Spleen