Endocrine cells secrete by exocytosis into the fluid surrounding the cell. Endocrine cells may either be single cells or aggregations of cells and secrete hormones that serve as chemical messengers. Aggregations of endocrine cells, such as the thyroid, adrenal or pituitary glands, are ductless. 2.
1 Arrange the potatoes on your food dehydrator trays, making sure the potatoes don't overlap. 2  Turn on your food dehydrator and set the temperature between 125Â°F and 135Â°F (or per your food dehydrator's instructions). 3  Potatoes will be leathery and/or brittle when fully dried. 4  Drying time for potatoes: between 6-14 hours.
2. Boil the sweet potatoes for 15 to 20 minutes. Fill a large stockpot with water and boil it over high heat. Add the sweet potatoes and cook until tender. 1  You need to cook the sweet potatoes before you can freeze them, as raw sweet potatoes tend to break down and lose both flavor and nutrients in the freezer.ure the sweet potatoes for 1 to 2 weeks. Keep the roots in a room or other location that reaches between 75 and 80 degrees Fahrenheit (24 and 27 degrees Celsius) with relative humidity of 90 to 95 percent. 1  The sweet potatoes need to cure for at least 7 days, but they can be kept there for as many as 14 days.