(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 A ovary oestrogen B pancreas insulin C pancreas oestrogen D pancreas insulin (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 the hormone insulin, which regulates blood glucose levels, is the liver. The liver helps regulate glucose storage and release into the bloodstream.

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

$BMI = \frac{mass}{height^2}$

For person A:

• Mass = 110 kg
• Height = 2.0 m

Calculating:

$BMI = \frac{110}{2.0^2} = \frac{110}{4} = 27.5$

1. Increase Physical Activity: Engaging in regular exercise can help improve insulin sensitivity and aid in weight management, which are crucial for controlling blood glucose levels.

2. Adopt a Healthy Diet: Eating a balanced diet rich in whole grains, lean proteins, and vegetables while reducing sugar and refined carbs can help maintain healthy blood glucose levels.

The correct answer is row A, which states 'yes' for both aerobic and anaerobic respiration, as both types utilize glucose for energy production.

The trend in Figure 9 may indicate that as the intensity of exercise increases, the reliance on anaerobic respiration increases while aerobic respiration predominates during lower intensity activities. This reflects the body’s shift from aerobic metabolism, which is more efficient but slower, to anaerobic metabolism when quick energy is required.