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3.1 Name TWO foods that cause allergies - NSC Consumer Studies - Question 3 - 2017 - Paper 1
Question 3
3.1 Name TWO foods that cause allergies. 3.2 State THREE benefits that organically grown food may have for the natural environment. 3.3 "Food irradiation is a te... show full transcript
Worked Solution & Example Answer:3.1 Name TWO foods that cause allergies - NSC Consumer Studies - Question 3 - 2017 - Paper 1
Step 1
3.1 Name TWO foods that cause allergies.
Answer
Two foods that commonly cause allergies are peanuts and milk. Peanuts are known for their potential to trigger severe allergic reactions, while milk, especially cow's milk, can cause adverse immune responses in individuals with milk allergies.
Step 2
3.2 State THREE benefits that organically grown food may have for the natural environment.
Answer
- Organic farming practices reduce chemical runoff into water bodies, thus protecting aquatic ecosystems.
- It enhances biodiversity by promoting a variety of crops and sustainable farming practices.
- Organic cultivation helps maintain soil health by using natural fertilizers and crop rotation, preventing soil degradation.
Step 3
3.3 "Food irradiation is a technology used to improve the safety of food products such as herbs". Discuss FOUR reasons why this statement is true.
Answer
- Food irradiation helps prolong shelf life by reducing spoilage caused by microorganisms.
- It can eliminate foodborne pathogens, thus enhancing food safety.
- The process can reduce the need for pesticides and other chemical treatments, making the food safer for consumption.
- Food irradiation maintains the nutritional quality of the food, as it does not significantly alter vitamins and minerals present.
Step 4
3.4 Compare milk allergy with lactose intolerance. Tabulate your answer as follows:
Answer
| Milk allergy | Lactose intolerance |
|---|---|
| Involves the immune system | Involves the small intestine |
| Milk protein is seen as harmful | Intestine secretes little or no lactase |
| Reacts against milk proteins | Does not change lactose into glucose |
Step 5
3.5 Explain why coronary heart disease is referred to as lifestyle disease.
Answer
Coronary heart disease is termed a lifestyle disease because it is primarily influenced by factors related to lifestyle choices, such as a diet high in saturated fats, lack of physical activity, and the consumption of tobacco. These choices can lead to risk factors like obesity and high cholesterol, increasing the likelihood of heart disease. Moreover, individuals may be unaware of their risk due to hidden ingredients in processed foods.
Step 7
3.6.1 Describe high cholesterol.
Answer
High cholesterol, or hypercholesterolemia, refers to an increased level of cholesterol in the bloodstream, especially low-density lipoprotein (LDL) cholesterol. It can lead to plaque buildup in arteries, heightening the risk of coronary heart disease and stroke.
Step 8
3.6.2 Describe how regular checking of blood cholesterol levels can benefit a person suffering from high cholesterol.
Answer
Regular monitoring of blood cholesterol levels can help individuals manage their condition by providing critical information about their cholesterol status. This awareness allows for timely interventions, such as dietary changes or medication, to prevent complications associated with high cholesterol.
Step 9
3.6.3 State FOUR dietary guidelines to manage high cholesterol.
Answer
- Reduce saturated fat intake by limiting red meat and full-fat dairy products.
- Increase soluble fiber consumption through foods like oats, beans, and fruits.
- Incorporate healthy fats, such as those found in avocados and olive oil.
- Avoid trans fats, commonly found in processed and fried foods.
Step 10
Step 12
3.8.1 Explain how the disease could have been transmitted.
Answer
The disease could have been transmitted through airborne bacteria spread from person to person. When an infected individual coughs, sneezes, or talks, they release droplets containing bacteria into the air. If Tammy is in close proximity to her uncle during this time, she could inhale these droplets and contract the illness.
Step 13
3.8.2 Analyse the impact of the vegetable and fruit on Tammy's health.
Answer
Tammy's health can benefit significantly from consuming vegetables and fruits from her grandparents' garden. Regular intake of these foods provides essential vitamins, minerals, and fiber which are vital for her immune system and overall health. Spinach and carrots, for example, are rich in antioxidants, bolstering her immune response, while tomatoes provide lycopene, which is known for its health benefits.