1. The image below shows how the human body and the endocrine system controls the level of blood sugar. O Increase in blood glucose O Decrease in blood glucose PANCREAS PANCREAS O Glucagon secretion slows O Insulin O Insulin secretion increases O Glucagon secretion increases secretion slows glucagon insulin glucagon insulin LIVER MUSCLE FAT IVER O Body cells, especially in muscle and adipose tissue, take up and use more glucose. Cells in skeletal muscle and liver store glucose in the form of glycogen. O Cells in liver break down glycogen faster. The released glucose monomers enter blood. O Decrease in blood glucose O Increase in blood glucose (a) Explain how the cells communicate with one another. (b) Using the diagram above, describe the differences between positive and negative feedback. (c) The graph above shows a day in the life of A high school student's typical day consists of eating before 8:00 am, lunch at 12:00 pm, dinner at 6:00 pm, and an evening snack around 10:00 pm. Using the Blood Glucose levels and the chart above, explain how the glycogen levels of the liver change over 24 using the communication among the cells and the feedback mechanisms.

Andrew presented to his doctor at the age of 13 with weight loss, decreased energy levels, frequent urination, fatigue, nausea, and unquenchable thirst. Andrew's doctor tested his blood glucose level and found it was very high at 250 mg/dL. The normal blood sugar range is between 70 - 130 mg/dL. Andrew's doctor immediately started him on insulin at 11:00 am. Andrew's Blood Sugar Levels 300 250 200 150 100 50 8:00 AM 9:00 AM 10:00 AM 11:00 AM 12:00 PM 1:00 PM 2:00 PM 3:00 PM 4:00 PM 5.00 PM 6:00 PM 7:00 PM Time Based on the information, what is the best explanation for how the negative feedback mechanism works to control the amount of sugar in Andrew's blood? Glucose from the food stimulates the pancreas to produce more insulin to regulate blood sugar. The pancreas produces insulin after a meal to decrease the amount of glucose in the blood to maintain homeostasis. The pancreas does not control homeostatic blood glucose levels by secreting insulin. O Insulin production increases hunger…

Triglycerides are metabolized in what cell types? O Muscle Cell Fat Cells Brain Cells Liver Cells O Skin Cells

Which of the following statements is true regarding the blood glucose level of non-insulin-dependent diabetics compared with that of normal individuals? O Blood glucose levels of diabetics tend to be very stable, but at a higher level. O Blood glucose levels of diabetics tend to be variable and higher. O Blood glucose levels decrease more rapidly following a meal, often dropping lower than is toleráble. O Blood glucose levels average the same level in diabetics but reach higher peaks for short periods. O None of the above is true.