If there is adequate carbohydrate intake, secretion of insulin results in:
a. Lower blood glucose levels
b. Increased cell utilization of glucose
c. Storage of glycogen
d. All of these

Verified step by step guidance

1. Understand the role of insulin in carbohydrate metabolism: Insulin is a hormone secreted by the pancreas in response to elevated blood glucose levels, typically after carbohydrate intake.
2. Recognize that insulin facilitates the uptake of glucose by cells, which increases cellular utilization of glucose for energy production.
3. Know that insulin promotes the storage of excess glucose in the form of glycogen, primarily in the liver and muscle tissues.
4. Realize that by promoting glucose uptake and storage, insulin effectively lowers blood glucose levels in the bloodstream.
5. Conclude that since insulin lowers blood glucose levels, increases cellular glucose utilization, and promotes glycogen storage, all these effects occur together, making the correct answer 'All of these'.

Key Concepts

Role of Insulin in Blood Glucose Regulation

Insulin is a hormone secreted by the pancreas in response to elevated blood glucose levels, especially after carbohydrate intake. It helps lower blood glucose by promoting its uptake into cells, thus maintaining homeostasis.

Cellular Utilization of Glucose

Insulin facilitates glucose entry into cells, where it is used as an energy source through cellular respiration. This increased glucose uptake enhances cell metabolism and energy production.

Glycogen Storage

Insulin stimulates the conversion of excess glucose into glycogen, a storage form of glucose, primarily in the liver and muscles. This process helps store energy for future use and prevents hyperglycemia.