2.4+2.5+2.6Questions

Read 2.4 Carbohydrates 2.5 Lipids 2.6 Proteins Answer the following questions... 1. What is the usual function of various carbohydrates in humans? They are quick short-term energy storage for all organisms 2. What is the difference between a simple carbohydrate and a complex carbohydrate? DESCRIBE EXAMPLES One is a 5 Carbon Sugar and the other is a 6 Carbon Sugar. Examples are Glucose and Disaccharide. 3. What is starch? What is the source of starch? These are forms of glucose that are stored in plants and animals often 4. What is "fiber" and of what benefit is it in the diet? Fiber is structure resembling a thread, and it is also non-digestible 5. Why does low-crab dieting work sometimes? But what are the risks? It can cut out all of the extra fat and sugar that the body consumes, but you are at risk of being unhealthy by not giving your body what it needs to function 6. What is the function of fats and oils? DESCRIBE EXAMPLES These are lipids, and lipids contain more energy per gram than anything. These are basically quick sorces of energy 7. What are fats and oils composed of? Fats are composed of lard and butter, while opils are made up of corn oil and soybean oil. 8. What is the difference between a saturated and unsaturated fat? DESCRIBE EXAMPLES Saturated contains 16-18 carbon atoms per molecule, while unsaturated contain double bonds in the carbon chain wherever the number of hydrogen’s is less than two per carbon 9. What are the uses of phospholipids in the body? DESCRIBE EXAMPLES They form polar head of the molecule, and the rest of the body becomes the hydrophobic tails. These are the primary components of cellular membranes 10. What are the uses of steroids in the body? DESCRIBE EXAMPLES These are lipids that have very different structure than fats. They have four fused carbon rings. 11. Why do we need fat in our diet? DESCRIBE EXAMPLES The body needs fat to use in order to live and feed on. It is also a good component used to store heat in. 12. What are the major functions of proteins in organisms? DESCRIBE EXAMPLES Support, Enzymes, Transport, Defense, Hormones, and Motion 13. What is the subunit of a protein? How do they get their name? Amino Acids, because they bond to hydrogen atoms as well as three other groups of atoms 14. How does the shape of a protein relate to its function? DESCRIBE EXAMPLES They can't function unless they have their shapes. They undergo a process which results in an irreversible change in shape called denaturation.