Podcast
Questions and Answers
What deficiency is being addressed through the diet mentioned?
What deficiency is being addressed through the diet mentioned?
Which enzyme completely digests polypeptides into amino acids?
Which enzyme completely digests polypeptides into amino acids?
What may occur in a plant grown without magnesium?
What may occur in a plant grown without magnesium?
Which elements are absorbed from the soil by plants?
Which elements are absorbed from the soil by plants?
Signup and view all the answers
What does the information imply about the energy requirements of adult males compared to younger males?
What does the information imply about the energy requirements of adult males compared to younger males?
Signup and view all the answers
What condition is the patient MOST likely suffering from if they experience pain in the abdominal region, difficulty in expelling faeces, and infrequent bowel movements?
What condition is the patient MOST likely suffering from if they experience pain in the abdominal region, difficulty in expelling faeces, and infrequent bowel movements?
Signup and view all the answers
Which vitamin plays a similar function to phytonadione, which is prescribed for blood clotting problems?
Which vitamin plays a similar function to phytonadione, which is prescribed for blood clotting problems?
Signup and view all the answers
Which of the following correctly describes the process of assimilation in the human body?
Which of the following correctly describes the process of assimilation in the human body?
Signup and view all the answers
Which digestive enzymes are secreted by the stomach, pancreas, and small intestine?
Which digestive enzymes are secreted by the stomach, pancreas, and small intestine?
Signup and view all the answers
What is the correct pathway for the food bolus to enter the stomach?
What is the correct pathway for the food bolus to enter the stomach?
Signup and view all the answers
Study Notes
Chapter 8: Nutrition and Digestion (MCQs)
- Polypeptides are digested into amino acids by the enzyme erepsin, not amylase, catalase, or lipase.
- Vessel Y in the diagram is the hepatic portal vein, which carries glucose absorbed from the intestines.
- Plants absorb carbon, hydrogen, and nitrogen from the soil.
- Digestion stages X, Y, and Z are proteins, polypeptides (amino acids), and amino acids, respectively.
- Magnesium deficiency in plants can lead to increased water loss, slow sugar transport, and/or no chlorophyll formation. It can also deactivate enzymes.
- Food items shown are primary sources of carbohydrates.
- Energy requirements vary based on age, gender, and activity level.
- Adult males generally require more calories than younger males.
- The diagram depicts a biochemical cycle (likely the urea cycle).
Vitamin C
- Vitamin C sources include oranges and guava, playing a role in forming collagen.
- Vitamin C does not form rhodopsin.
Digestive System
- Pepsin in the small intestine is denatured from partial digestion.
- Bowel problems (pain in abdomen, difficulty expelling feces, infrequent bowel movements) can indicate constipation.
- Wholemeal bread, banana, lettuce, and cabbage are rich in fiber.
- Assimilation is the use of glucose in respiration.
- Symptoms (abdominal pain, nausea, loss of appetite, abdominal burning) can indicate peptic ulcers, diarrhea, or constipation.
- Energy requirements differ according to age, sex, and activity level.
Correct about Iron
- Dietary sources include red meat and egg yolk. These help with healing wounds, but not oxygen transport.
Vitamins
- Night blindness, poor growth, and dry skin point to a vitamin A deficiency.
- Digestive enzymes are secreted by different organs; liver, pancreas, and gall bladder; stomach, liver, and large intestine; stomach, pancreas, and small intestine; gall bladder, small intestine, and large intestine.
Emulsification
- In the digestive process, emulsification breaks down larger fat molecules.
- Emulsification in the human body converts larger molecules of fat to smaller fat molecules.
Human Digestive System
- The diagram shows the pathway for peristalsis in the esophagus, where longitudinal muscles contract (or relax) and allow food bolus down the digestive tract.
- The diagram shows the correct pathway for the food bolus to enter the stomach, through the esophagus and cardiac sphincter.
- Chemical digestion of food begins in the stomach, and then continues in the small intestine.
- Starch is converted to maltose in the mouth; the pancreas and intestines secrete enzymes.
- Enzymes such as trypsin and pepsin are involved in digestion. They have different optimal pH levels in the various parts of the digestive tract.
Blood Vessels
- Vessel Y, is the hepatic portal vein, taking glucose into the liver.
Human Body
- Fat digestion requires bile salts to break down fat globules into droplets. Fat digestion occurs in the duodenum.
- In the stomach, gastric juice and pepsinogen aid in digestion, and the acidic pH of the stomach affects these.
- Damaged cilia from smoking can lead to conditions like bronchitis, emphysema, pneumonia, or tuberculosis.
- The pH of the human digestive system affects enzyme function.
Other Relevant Information
- Phytonadione (vitamin K) plays a role in blood clotting.
- Common sources of dietary fiber include wholemeal bread, bananas, lettuce, and cabbage.
- Human digestive system features include the esophagus, stomach, small intestine, and large intestine.
- Microbial activity and the digestive system help with nutrient absorption in the small intestines.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Related Documents
Description
Test your knowledge on nutrition and digestion with multiple-choice questions that cover essential concepts from Chapter 8. Topics include enzyme functions, plant nutrient absorption, and the biochemical cycles involved in digestion. Perfect for students looking to reinforce their understanding of human and plant nutrition.
