Physiological Factors Influencing Food Choices

Which hormone is primarily responsible for stimulating hunger in humans?

• Insulin

• Ghrelin

• Oestrogen

• Thyroxine

What is the main function of the vagus nerve in relation to appetite?

• Increases blood sugar levels

• Signals fullness to the brain

• Produces digestive enzymes

• Absorbs nutrients in the small intestine

How does age generally affect energy requirements?

• Energy needs increase with age

• Energy needs decrease with age

• Energy needs stay the same throughout life

• Energy needs are highest in middle age

Which nutrient do females typically require more of during their teenage years compared to males?

• Iron

• Vitamin C

• Calcium

• Protein

Which hormone is released by fat cells to signal satiety (fullness) to the brain?

• Ghrelin

• Leptin

• Adrenaline

• Cortisol

Why do people who are more physically active require more energy?

• They lose more water

• Their bodies use more energy for movement and repair

• They sleep less

• They eat more fibre

Which of the following best describes the effect of puberty on nutritional needs?

• Nutritional needs decrease

• Nutritional needs remain unchanged

• Nutritional needs increase due to rapid growth

• Only energy needs increase, not nutrients

Which gender generally requires more kilojoules per day during adolescence?

• Males

• Females

• Both require the same

• It depends on height only

What is the main reason older adults need less energy than younger adults?

• They eat less

• They are less physically active and have a slower metabolism

• They sleep more

• They drink more water

Which of the following is NOT a physiological factor affecting food choice?

• Hormonal signals

• Physical activity level

• Advertising

• Age