BIOL 233 Chapter Notes - Chapter 4: Dietary Fiber, Amylopectin, Starch
22 Sep 2020
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Most plant foods (fruits, vegetables, grains, beans) provide energy mainly as carbohydrates. Most of the world"s calories consumed come from carbohydrates. The usda recommends that 45-65% of calories be from carbohydrates. Plants make carbs from water, carbon dioxide and the energy in sunlight. Only plant foods contain fiber (mostly the indigestible plant cell wall carbohydrate cellulose) Describe the relationship between sugar consumption ad hyperactivity in children. Research studies have not found a consistent link between sugar and hyperactivity. Carbs actually have a calming effect by increasing production of the sleep-inducing chemical serotonin. The liver can convert fructose and galactose to glucose. The liver may form glucose into glycogen, burn it for energy, or release it to the bloodstream for use in other parts of the body. Identify in what form the body stores excess glucose. To store excess glucose, the body assembles it into the long, branched chains of glycogen.
