5 (a) (i) Which row of the table shows the endocrine gland and hormone involved in the control of blood glucose concentration? endocrine gland hormone A ovary oestrogen B ovary insulin C pancreas oestrogen D pancreas insulin (ii) State a target organ for the hormone that controls blood glucose concentration - Edexcel - GCSE Biology - Question 5 - 2020 - Paper 1

The target organ for insulin is the liver. Insulin promotes the uptake of glucose by liver cells, facilitating the conversion of glucose to glycogen for storage.

1. Person B should adopt a balanced diet that is low in sugars and high in fiber to help regulate blood sugar levels.

2. Regular physical activity, such as walking or exercising, can enhance insulin sensitivity and aid in glucose metabolism.

The correct row is A, indicating both aerobic and anaerobic respiration use glucose. Aerobic respiration requires oxygen and produces more energy, whereas anaerobic respiration occurs without oxygen.

The trend indicates that as the speed of running increases, the respiration rate also increases significantly. This is because higher activity levels require more energy, leading to greater oxygen demand and metabolic activity. While sleeping shows the lowest respiration rate, running quickly results in the highest rate, reflecting the body’s increased energy expenditure during strenuous activity.