Portage Learning A&P 1 101Digestive System Test Questions and Answers
1. Explain why a patient with liver disease would have intolerance to fatty
... [Show More] foods.
A patient with liver disease would have trouble breaking up the fat into fat droplets, so would not be able to breakdown and process fats as needed.
2. Explain in detail how the stomach contents enter the small intestine.
Chyme would pass through the pyloric sphincter, which is at the base of the stomach, and would pass through the duodenum, which is the first part of the small intestine.
Look carefully at the diagram below. Label the following 5 organs of the digestive system. To receive credit for the intestines you must label the specific region.
1: Liver
2: Pancreas
5: Duodenum
6: Ileum
8: Ascending colon
1. A doctor is looking to prescribe a larger dose of a vitamin that would not easily cause vitamin toxicity. What type of vitamin would be the best to prescribe? Explain your answer.
A. Water soluble vitamin
B. Fat soluble vitamin
C. All of the above
A- Water soluble vitamin.
Water soluble vitamins can be excreted through the urine. Whereas, the fat soluble vitamins are stored in body fat, and too much of it can cause serious problems.
2. Explain which digestive system functions are carried out by the large intestine.
Large intestines compacts body waste and gets it ready for elimination. It also reabsorbs water and electrolytes.
1. Describe parietal cells and chief cells: name their location, secretions and purposes.
Parietal cells and chief cells are both located in the stomach.
Parietal cells secretes hydrochloric acid (HCI), and creates highly acidic pH of 1.3-3.5, and these cells kills off bacteria, breaks down plant cells and animal tissues of meat. It also stops the activity of salivary amylase, which is essential to activate the function of pepsin.
Chief cells secrete pepcinogens, which is pre-enzyme and is converted to pepcin, which is an active enzyme that helps break down protein.
1. Match the digestive organ with the one substance it produces: (4 points): Large intestine C
Stomach E Small intestine F
A. Bile
B. Salivary amylase
C. Vitamin K
D. Secretin
E. Pepsinogen
F. Trypsin
2. What is the purpose of the hormone Leptin?
A. Increase hunger, decrease satiety
B. Increase hunger, increase satiety
C. Decrease hunger, increase satiety
D. Decrease hunger, decrease satiety C
3. Which of the following statements is false?
A. The ileocecal valve controls the entrance of chyme into to the large intestine.
B. Taste buds are located on the surface of the mouth and the wall of the pharynx.
C. The liver, pancreas, and tongue are considered accessory organs to the digestive system.
D. The stomach is located along the right side of the abdomen below the diaphragm.
D- located along the left side
1. Lipids can be divided into three categories: saturated fat, unsaturated fat, and cholesterol.
True
2. Anabolism combines smaller molecules to make larger molecules.
True
3. The nasopharynx is the most superior region of the pharynx. True
4. The pharynx has three types of skeletal muscle: circumferential, longitudinal and oblique.
False- Pharynx only has 2 types of skeletal muscles
5. The digestive work of salivary amylase is an example of mechanical digestion.
False- chemical digestion
1. Label the following three types of raised bumps on the tongue. Describe the purpose of type B.
A: Filiform Papillae
B: Circumvallate papillae C: Fungiform papillae Describe B:
Circumvallate papillae contains taste buds, which are chemical receptors that is stimulated by the chemical composition of food. It is especially receptive to bitter tastes.
1. Which of the following statements is true concerning glycolysis?
A. Pyruvic acid are broken down into glucose.
B. Five ATP molecules are formed.
C. Glucose is broken down into two pyruvate molecules.
D. Glucose is broken down into two ADP molecules.
C
2. Which of the following statements is false concerning the second stage of glucose breakdown?
A. This second stage is also known as the TCA cycle.
B. Pyruvic acid is converted to carbon dioxide.
C. Additional ATP is formed.
D. This is also known as the electron transport system.
D- ETS is the third stage
3. Which of the following statements is true concerning the Electron Transport System?
A. Can proceed can proceed only aerobically
B. Approximately a total of 2 ATP are formed.
C. Protons are pumped out of the inner mitochondrial membrane.
D. The proton motive force forms ADP. C
Label the diagram below, including left or right. Discuss the purpose of tooth (B).
A: Mandible B: Molar
C: Pre-molar (bicuspid) F: Right central incisor Purpose of tooth type B:
Molars crushes the teeth into finest bits of food (bolus).
Match the five structures with the best description:
1. Pancreas:
A. Storage site for bile
B. Attached to the soft palate
C. Secretes juices which digest all types of foods
D. Stores glycogen and produces urea
E. Forms food into a bolus C
2. Stomach:
A. Hangs from the cecum
B. Connects mouth to esophagus
C. Attaches to the greater omentum
D. Contains the hepatic flexure
E. Site of the ileocecal valve C
3. Submucosal (layer of tissue):
A. Made of two layers of muscle
B. Innermost layer
C. Secretes mucous
D. Contains blood and lymph vessels
E. Begins in the mouth D
4. Enamel:
A. Lies below the gum line
B. Innermost layer
C. Largest portion of each tooth
D. Contains nerves and vessels
E. Located on the surface of the crown E
5. Common Bile Duct
A. Contains secretions from the pancreas
B. Joins with the pancreatic duct
C. Enters the jejunum
D. Contains secretions from the salivary glands
E. Contains lymph vessels and nerves B [Show Less]