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Answer the following questions on cholesterol - NSC Consumer Studies - Question 3 - 2018 - Paper 1
Question 3
Answer the following questions on cholesterol. 3.1.1 Name TWO types of cholesterol. 3.1.2 Explain the difference between the two types of cholesterol. (2 x 2) 3.2... show full transcript
Worked Solution & Example Answer:Answer the following questions on cholesterol - NSC Consumer Studies - Question 3 - 2018 - Paper 1
Step 1
3.1.1 Name TWO types of cholesterol.
Answer
The two types of cholesterol are:
- Low-density lipoprotein (LDL), often referred to as 'bad' cholesterol, which can lead to plaque buildup in arteries.
- High-density lipoprotein (HDL), known as 'good' cholesterol, which helps remove other types of cholesterol from the bloodstream.
Step 2
3.1.2 Explain the difference between the two types of cholesterol.
Answer
The primary difference between LDL and HDL cholesterol lies in their roles in the body:
- Low-density lipoprotein (LDL) is considered dangerous as it can accumulate within blood vessel walls, leading to narrowed arteries and increased risk of heart disease.
- High-density lipoprotein (HDL), on the other hand, plays a protective role by transporting cholesterol back to the liver, where it can be processed and excreted. High levels of HDL are associated with a reduced risk of cardiovascular diseases.
Step 3
3.2 Write a paragraph to discuss why genetically modified crops may save the world from starvation in the future.
Answer
Genetically modified (GM) crops may help alleviate global starvation by enhancing food production under challenging conditions. By incorporating traits that allow crops to withstand environmental stresses such as drought, pests, and diseases, GM technologies can lead to higher yields and more reliable food sources. Furthermore, these crops often require less pesticide and fertilizer, which can lower production costs and reduce environmental impact. With the growing global population and the increasing demand for food, GM crops can be a crucial part of sustainable agricultural practices, ensuring that food remains available for future generations.
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3.3.4 Explain why cow's milk, wheat, gluten and egg are separately listed on the label.
Answer
These ingredients are separately listed to ensure that consumers can easily recognize potential allergens. This is important because individuals may have severe allergic reactions to any of these components.
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3.3.6 Suggest TWO guidelines that must be followed by a consumer before eating this dish to prevent the transmission of food-borne diseases.
Answer
Two guidelines to follow are:
- Wash hands thoroughly before handling or opening the dish.
- Heat the dish to a high enough internal temperature to ensure it is properly cooked.
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3.3.7 Explain why this dish is suitable for the management of osteoporosis.
Answer
This dish is beneficial for managing osteoporosis due to the presence of:
- Calcium from the cheese and milk, which strengthens bones.
- Vitamin D from the cheese, which assists in the absorption of calcium.
- Protein necessary for maintaining bone health and supporting collagen synthesis.
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3.3.9 Evaluate the suitability of this dish for a consumer who wants to manage obesity.
Answer
This dish is high in energy (kilojoules), making it a concern for someone looking to lose weight. The presence of high carbohydrates, especially from pasta, contributes to energy intake. Additionally, while it contains some protein, the dish also has high levels of fat and sodium. Therefore, for a consumer managing obesity, this dish may not be suitable due to its calorie density and potential contribution to excessive energy consumption.