What type of cells secrete insulin?
Alpha cells
Beta cells
Acinar cells
Plasma cells
The Correct Answer is B
B. Beta cells are the pancreatic cells responsible for secreting insulin. Insulin acts to lower blood sugar levels by facilitating the uptake of glucose into cells for energy or storage. In individuals with diabetes mellitus, dysfunction of beta cells can lead to inadequate insulin secretion, resulting in high blood sugar levels.
A. Alpha cells are another type of cell in the pancreas, but they secrete glucagon, not insulin. Glucagon has the opposite effect of insulin, increasing blood sugar levels by stimulating the breakdown of glycogen in the liver.
C. Acinar cells are exocrine cells found in the pancreas that secrete digestive enzymes into the pancreatic ducts. These enzymes aid in the digestion of food in the small intestine. Acinar cells are not involved in the production of insulin.
D. Plasma cells are a type of white blood cell that produces antibodies as part of the immune response. They are not involved in the production of insulin.
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Related Questions
Correct Answer is A
Explanation
A. Insulin is typically administered via injections or an insulin pump, not in pill form. Individuals with type 1 diabetes require exogenous insulin to manage their blood sugar levels because their pancreas does not produce insulin.
B. Carbohydrate counting is a fundamental skill for individuals with diabetes, as it allows them to adjust their insulin dosage to match their carbohydrate intake, thereby helping to manage blood sugar levels.
C. Regular foot monitoring is crucial for individuals with diabetes, as they are at increased risk of developing foot problems due to nerve damage (neuropathy) and poor circulation.
D. Maintaining blood glucose levels within the target range (80-130 mg/dL before meals) helps reduce the risk of both short-term complications (e.g., hypoglycemia) and long-term complications (e.g., neuropathy, retinopathy) associated with diabetes.
Correct Answer is C
Explanation
C. Medical nutrition therapy for diabetes involves creating a well-balanced, individualized meal plan that meets the patient's nutritional needs while helping to manage blood glucose levels. This approach can be healthy for the entire family and does not require separate meals or special foods. It promotes overall healthy eating habits that everyone can benefit from.
A. Low-carbohydrate diets may be considered for some patients but the emphasis of a diabetic diet is not necessarily on high-protein intake. Instead, the focus is on balanced meals that include appropriate amounts of carbohydrates, proteins, and fats.
B. People with diabetes do not require special foods; rather, they need to make healthier choices from the foods available. The emphasis is on a balanced diet that can include regular foods, with modifications to portion sizes and meal timing to manage blood glucose levels effectively.
D. It is not necessary to completely avoid sugars and fats; rather, the focus should be on moderating intake and choosing healthier options. For example, limiting added sugars and unhealthy fats (like trans fats and saturated fats) is important, but healthy fats (such as those from nuts, seeds, and avocados) can be part of a balanced diet.
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