Reference no: EM133461299
Questions:
1.1 A salivary enzyme hydrolyses starches into smaller products in order for digestion to take place. What is the name of this salivary enzyme and what are the two (2) smaller products referred too?
1.2 Describe the role of fibre in the stomach.
1.3 Sports drinks that athletes consume contain glucose instead of cane-sugar or fructose corn syrup. Give a possible explanation as to why.
1.4 The ingredients of mayonnaise and greek salad dressing are very similar (both have oil and vinegar), but these condiments look quite different. Draw from your knowledge regarding the digestion of fat to explain this.
1.5 Indicate where in the digestive tract the digestion of protein begins and then explain what happens to protein in this organ.
1.6 Someone who has been running a race is probably quite hungry at the end of it, while someone who has been sitting and snacking all day might have an appetite but would not actually be hungry. Similarly, someone who has taken in all the nutrients he/she needs for a day might be in the condition of satiety, but might still need a pizza, an ice cream and a few bars of chocolate before feeling truly satiated. Explain the different concepts (i. Hunger; ii. Appetite; iii. Satiety and iv. Satiated) to your friend to help him understand how they are related.
1.7 Indicate whether the following statements are true or false. For each FALSE answer please explain why the statement is incorrect.
1.7.1 The products of carbohydrate digestion are ultimately monosaccharides, which include glucose, fructose and lactose.
1.7.2 Glucose makes use of active transport in the absorption process.
1.7.3 Polysaccharides are absorbed by means of facilitated diffusion.
1.7.4 Smaller lipids, such as glycerol, small chain fatty acids and medium chain fatty acids are absorbed directly into the blood stream.