Question

claire had a heavy breakfast early in the morning. then she went to the gym to exercise. after the gym, claire went to class. while exercising, the body requires a continuous supply of energy and uses up blood sugar at a faster rate. how will hormones maintain the sugar balance in the body from breakfast until claire has lunch? high blood sugar secretion of glucagon secretion of insulin glycogen breaks down to glucose after breakfast blood sugar low pancreas pancreas intake of sugar by liver cells

Explanation:

Step1: Analyze after - breakfast situation

After breakfast, the food is digested and absorbed, so the blood sugar level will be high. So the first blank in the left - hand column (after "after breakfast") should be filled with "high blood sugar".

Step2: Determine the hormone secretion after high blood sugar

When blood sugar is high, the pancreas (specifically the islets of Langerhans) secretes insulin. So the second blank in the left - hand column (after "after breakfast" and "high blood sugar") is "secretion of insulin".

Step3: Analyze the situation when blood sugar is low

When Claire exercises, blood sugar is used up at a faster rate, so blood sugar becomes low. The pancreas (islets of Langerhans) responds to low blood sugar by secreting glucagon. So the blank after "blood sugar low" and "pancreas" in the right - hand column is "secretion of glucagon".

Step4: Determine the effect of glucagon

Glucagon acts on the liver to make glycogen break down to glucose, which increases blood sugar levels. So the last blank in the right - hand column (after "secretion of glucagon") is "glycogen breaks down to glucose".

Answer:

• Left - hand column (top to bottom): high blood sugar; secretion of insulin
• Right - hand column (top to bottom): secretion of glucagon; glycogen breaks down to glucose