(a) (i) Which row of the table shows the endocrine gland and hormone involved in the control of blood glucose concentration? A endocrine gland hormone B ovary oestrogen C pancreas insulin D pancreas oestrogen (ii) State a target organ for the hormone that controls blood glucose concentration - Edexcel - GCSE Biology Combined Science - Question 4 - 2020 - Paper 1

The target organ for insulin, the hormone that controls blood glucose concentration, is the liver.

To calculate the BMI for person A, we use the formula:

ext{BMI} = rac{ ext{mass}}{ ext{height}^2}

For person A:

• Mass = 110 kg
• Height = 2.0 m

Thus,

ext{BMI} = rac{110}{(2.0)^2} = rac{110}{4} = 27.5

1. Dietary Changes: Person B should opt for a balanced diet rich in vegetables, whole grains, and lean protein while limiting sugar and high-carb foods to manage blood glucose levels effectively.

2. Regular Exercise: Engaging in regular physical activity, such as walking, cycling, or swimming, can help improve insulin sensitivity and lower blood glucose levels.

The correct answer is A: Both aerobic and anaerobic respiration use glucose as a substrate for energy production.

The trend shown in Figure 9 indicates that as the intensity of exercise increases, the reliance on anaerobic respiration increases. This is due to insufficient oxygen supply during high-intensity activities, leading the body to utilize anaerobic metabolism, which uses glucose for energy, resulting in the production of lactic acid.