4 (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 is the liver. Insulin helps to regulate glucose storage and usage in the liver.

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

Substituting the values:

• Mass = 110 kg
• Height = 2.0 m

Thus, the BMI for person A is 27.5.

1. Adopt a balanced diet: Person B should focus on consuming a diet rich in whole grains, fruits, vegetables, and lean proteins to maintain stable blood sugar levels. Reducing the intake of sugar and refined carbs is crucial.

2. Increase physical activity: Regular exercise can improve insulin sensitivity and help maintain a healthy weight, which can significantly assist in managing blood glucose levels.

The correct answer is A:

• Aerobic respiration: Yes
• Anaerobic respiration: Yes

Both types of respiration utilize glucose as a primary energy source.

The trend shown in Figure 9 indicates that as the rate of aerobic respiration increases, the need for oxygen also increases. Conversely, anaerobic respiration tends to increase when oxygen levels are low, showcasing a shift in energy production method depending on oxygen availability.