Table 7.1 shows the energy and nutrients contained in 100g of five foods. Food Energy / KJ Protein / g Fat / g Carbohydrate / g Calcium / mg Iron / mg Vitamin C / mg Vitamin D / mg apple 150 0.2 0.0 9.0 0 0.2 2 0.0 chicken, roast 630 25.0 5.0 0.0 0 0.8 0 0.0 egg, scrambled 1050 10.0 23.0 0.0 60 2.0 0 1.8 rice, boiled 500 2.0 0.3 30.0 0 0.0 0 0.0 spinach, boiled 130 5.0 0.5 1.5 600 4.0 25 0.0 Which food contains the most energy per 100g?

Egg scrambled to contain more energy. Eggs have traditionally been used as the standard of comparison for measuring protein quality because of their essential amino acid (EAA) profile and high digestibility. They provide a nutrient-dense source of energy from protein and fat, approximately 75 kcal per large egg, as well as several B vitamins, including thiamin, riboflavin, folate, B12, and B6, which are required for the production of energy by the body.

Shows the energy and nutrients contained in 100 g of five foods. Food Energy/ KJ Protein/ g Fat/ g Carbohydrate/ g Calcium/ mg Iron/ mg Vitamin C / mg Vitamin D / mg Apple 150 0.2 0.0 9.0 0 0.2 2 0.0 Chicken, roast 630 25.0 5.0 0.0 0 0.8 0 0.0 Egg, scrambled 1050 10.0 23.0 0.0 60 2.0 0 1.8 Rice, boiled 500 2.0 0.3 30.0 0 0.0 0 0.0 Spinach, boiled 130 5.0 0.5 1.5 600 4.0 25 0.0 Which nutrients in the table provide energy?

Carbohydrates, fat, and protein-Lipids provide more energy per gram than carbohydrates (nine-kilo calories per gram of lipids versus four-kilo calories per gram of carbohydrates). Protein provides four pounds of energy per gram; however, providing energy is not the most important function of proteins. Nutrients are the main source of energy for the body. The nutrients help in building and repairing body tissues.

Table 7.1 Shows the energy and nutrients contained in 100g of five foods. Food Energy/KJ Protein/ g Fat/ g Carbohydrate/ g Calcium/ mg Iron/ mg Vitamin C / mg Vitamin D / mg Apple 150 0.2 0.0 9.0 0 0.2 2 0.0 Chicken, roast 630 25.0 5.0 0.0 0 0.8 0 0.0 Egg, scrambled 1050 10.0 23.0 0.0 60 2.0 0 1.8 Rice, boiled 500 2.0 0.3 30.0 0 0.0 0 0.0 Spinach, boiled 130 5.0 0.5 1.5 600 4.0 25 0.0 Which nutrients in the table are mineral ions?

Calcium and Iron- Minerals are solid inorganic substances that form crystals and are classified depending on how much of them we need. Trace minerals, such as molybdenum, selenium, zinc, iron, and iodine, are only required in a few milligrams or less and macro minerals, such as calcium, magnesium, potassium, sodium, and phosphorus, are required in hundreds of milligrams.

Table 7.1 Shows the energy and nutrients contained in 100 g of five foods. Food Energy / KJ Protein / g Fat / g Carbohydrate / g Calcium / mg Iron / mg Vitamin C / mg Vitamin D / mg Apple 150 0.2 0.0 9.0 0 0.2 2 0.0 Chicken, roast 630 25.0 5.0 0.0 0 0.8 0 0.0 Egg, scrambled 1050 10.0 23.0 0.0 60 2.0 0 1.8 Rice, boiled 500 2.0 0.3 30.0 0 0.0 0 0.0 Spinach, boiled 130 5.0 0.5 1.5 600 4.0 25 0.0 How many times more proteins does roast chicken contain, then boiled rice?

The nutritional protein content in roasted chicken, ranging from 31.02 g to 16.57 g per 100 g. The basic type of roasted chicken is chicken, roasting, meat only, cooked, roasted, where the amount of protein in 100g is 25.0g. The roasted chicken corresponds to 45% the amount of protein RDA. For a typical serving size of 1 cup, chopped or diced (or 140 g) the amount of protein is 35.01g. This corresponds to an RDA percentage of 62%. The percentage of the recommended daily allowance (RDA) for protein is based on a 50 g RDA level for a mature adult. Chicken roast is an excellent source of protein, and it has 12 times more protein than boiled rice. Boiled rice has 2.0 g of protein per 100 grams and roasted chicken has 25.0 g of protein.

Table 7.1 Shows the energy and nutrients contained in 100 g of five foods. Food Energy / KJ Protein / g Fat / g Carbohydrate / g Calcium / g Iron / g Vitamin C / mg Vitamin D/ mg Apple 150 0.2 0.0 9.0 0 0.2 2 0.0 Chicken roast 630 25.0 5.0 0.0 0 0.8 0 0.0 Egg, scrambled 1050 10.0 23.0 0.0 60 2.0 0 1.8 Rice, boiled 500 2.0 0.3 30.0 0 0.0 0 0.0 Spinach, boiled 130 5.0 0.5 1.5 600 4.0 25 0.0 What pattern can you see in the foods (in table 7.1) that contain carbohydrate?

Carbohydrates are sugar, starch and fiber present in regular foods such as fruits, grains and dairy products. This is one of three micronutrients through which a human body derives energy. The biological properties of carbohydrates include carbon, hydrogen and oxygen atoms at their chemical level. Just like the pattern in the table, boiled rice can be a classic dish and deluxe food and has a place during a healthy diet, but it is high in carbohydrates. One cup of boiled rice has 30 grams of carbohydrates. Thus, rice can be the source of carbohydrates.

Table 7.1 Shows the energy and nutrients contained in 100 g of five foods. Food Energy / KJ Protein / g Fat / g Carbohydrate / g Calcium / mg Iron / mg Vitamin C / mg Vitamin D / mg Apple 150 0.2 0.0 9.0 0 0.2 2 0.0 Chicken, roast 630 25.0 5.0 0.0 0 0.8 0 0.0 Egg, scrambled 1050 10.0 23.0 0.0 60 2.0 0 1.8 Rice, boiled 500 2.0 0.3 30.0 0 0.0 0 0.0 Spinach, boiled 130 5.0 0.5 1.5 600 4.0 25 0.0 Scrambled egg has the highest energy content per gram of all of the foods in the table. What data in Table 7.1 could explain why the energy content of scrambled egg is so high?

Eggs are not only a highly satisfying food, but also full of energy, which can help feed your day. They are packed with protein, which can provide a stable and long-lasting source of energy. As per the given data, the scrambled egg has 1050 KJ when compared to other foods. Scrambled eggs have traditionally served as a reference for measuring protein quality because of their essential amino acid (EAA) profile and high digestibility. They provide a nutrient-dense source of energy from protein and fat, approximately 75 kcal per large egg, as well as several B vitamins, including thiamin, riboflavin, folate, B12, and B6, which are required for the production of energy by the body.

Table 7.1 shows the energy and nutrients contained in 100 g of the foods. Food Energy/KJ Protein / g Fat / g Carbohydrate / g Calcium / mg Iron / mg Vitamin C / mg Vitamin D / mg Apple 150 0.2 0.0 9.0 0 0.2 2 0.0 Chicken, roast 630 25.0 5.0 0.0 0 0.8 0 0.0 Egg, scrambled 1050 10.0 23.0 0.0 60 2.0 0 1.8 Rice, boiled 500 2.0 0.3 30.0 0 0.0 0 0.0 Spinach, boiled 130 5.0 0.5 1.5 600 4.0 25 0.0 A girl has anaemia. Which foods from the table would be most helpful for her to include in her diet? Explain your answer.

Anemia is a state in which your body does not have sufficient healthy red blood cells to carry sufficient oxygen to your tissues. Anemia may lead to tiredness and weakness. There are numerous types of anemia, each with its own set of causes. Anemia may be mild to severe, and it may be temporary or chronic. As indicated in the table above, foods such as spinach provide an excellent source of iron. Per the USDA, 1 cup of this healthy green (frozen and then boiled) delivers 4.0 mg of iron, as well as some protein, fiber, calcium, and vitamins A and E.

Table 7.1 shows the energy and nutrients contained in 100g of five foods. Food Energy / KJ Protein / g Fat / g Carbohydrate/ g Calcium / mg Iron / mg Vitamin C / mg Vitamin D / mg Apple 150 0.2 0.0 9.0 0 0.2 2 0.0 Chicken, roast 630 25.0 5.0 0.0 0 0.8 0 0.0 Egg, scrambled 1050 10.0 23.0 0.0 60 2.0 0 1.8 Rice, boiled 500 2.0 0.3 30.0 0 0.0 0 0.0 Spinach, boiled 130 5.0 0.5 1.5 600 4.0 25 0.0 Use the data in Table 7.1 to determine which of the five foods contains the greatest mass of water per 100 g. Show your working?

Your body needs water to function. Because you constantly lose water through breathing, perspiration, urine, and bowel movements, you have to replenish your body's water supply regularly. While 80% of your daily water consumption generally comes from drinks, the other 20% comes from food. Here, as per the given data in the table apples are the greatest mass of water. Per a 100-gram serving, apples have 85.56 g of water, making them a perfect snack for staying hydrated. Generally, apples are a good source of water, but they also contain a lot of fibre, vitamin C, and antioxidants such as quercetin and catechin.

Mary Jones and Geoff Jones Solutions for Chapter: Human Nutrition, Exercise 1: Exercise 7.1

Author:Mary Jones & Geoff Jones

Mary Jones Biology Solutions for Exercise - Mary Jones and Geoff Jones Solutions for Chapter: Human Nutrition, Exercise 1: Exercise 7.1

Attempt the free practice questions on Chapter 7: Human Nutrition, Exercise 1: Exercise 7.1 with hints and solutions to strengthen your understanding. Biology for Cambridge IGCSE Workbook 4 th Edition Digital Access solutions are prepared by Experienced Embibe Experts.

Questions from Mary Jones and Geoff Jones Solutions for Chapter: Human Nutrition, Exercise 1: Exercise 7.1 with Hints & Solutions

EASY

Upper Secondary-IGCSE

IMPORTANT

Biology for Cambridge IGCSE Workbook 4 th Edition Digital Access>Chapter 7 - Human Nutrition>Exercise 7.1>Q 1

Table 7.1 shows the energy and nutrients contained in 100g of five foods.

Food	Energy / KJ	Protein / g	Fat / g	Carbohydrate / g	Calcium / mg	Iron / mg	Vitamin C / mg	Vitamin D / mg
apple	150	0.2	0.0	9.0	0	0.2	2	0.0
chicken, roast	630	25.0	5.0	0.0	0	0.8	0	0.0
egg, scrambled	1050	10.0	23.0	0.0	60	2.0	0	1.8
rice, boiled	500	2.0	0.3	30.0	0	0.0	0	0.0
spinach, boiled	130	5.0	0.5	1.5	600	4.0	25	0.0

Which food contains the most energy per 100g?

EASY

Upper Secondary-IGCSE

IMPORTANT

Biology for Cambridge IGCSE Workbook 4 th Edition Digital Access>Chapter 7 - Human Nutrition>Exercise 7.1>Q 2

Shows the energy and nutrients contained in 100 g of five foods.

Food	Energy/ KJ	Protein/ g	Fat/ g	Carbohydrate/ g	Calcium/ mg	Iron/ mg	Vitamin C / mg	Vitamin D / mg
Apple	150	0.2	0.0	9.0	0	0.2	2	0.0
Chicken, roast	630	25.0	5.0	0.0	0	0.8	0	0.0
Egg, scrambled	1050	10.0	23.0	0.0	60	2.0	0	1.8
Rice, boiled	500	2.0	0.3	30.0	0	0.0	0	0.0
Spinach, boiled	130	5.0	0.5	1.5	600	4.0	25	0.0

Which nutrients in the table provide energy?

MEDIUM

Upper Secondary-IGCSE

IMPORTANT

Biology for Cambridge IGCSE Workbook 4 th Edition Digital Access>Chapter 7 - Human Nutrition>Exercise 7.1>Q 3

Table 7.1 Shows the energy and nutrients contained in 100g of five foods.

Food	Energy/KJ	Protein/ g	Fat/ g	Carbohydrate/ g	Calcium/ mg	Iron/ mg	Vitamin C / mg	Vitamin D / mg
Apple	150	0.2	0.0	9.0	0	0.2	2	0.0
Chicken, roast	630	25.0	5.0	0.0	0	0.8	0	0.0
Egg, scrambled	1050	10.0	23.0	0.0	60	2.0	0	1.8
Rice, boiled	500	2.0	0.3	30.0	0	0.0	0	0.0
Spinach, boiled	130	5.0	0.5	1.5	600	4.0	25	0.0

Which nutrients in the table are mineral ions?

MEDIUM

Upper Secondary-IGCSE

IMPORTANT

Biology for Cambridge IGCSE Workbook 4 th Edition Digital Access>Chapter 7 - Human Nutrition>Exercise 7.1>Q 4

Table 7.1 Shows the energy and nutrients contained in 100 g of five foods.

Food	Energy / KJ	Protein / g	Fat / g	Carbohydrate / g	Calcium / mg	Iron / mg	Vitamin C / mg	Vitamin D / mg
Apple	150	0.2	0.0	9.0	0	0.2	2	0.0
Chicken, roast	630	25.0	5.0	0.0	0	0.8	0	0.0
Egg, scrambled	1050	10.0	23.0	0.0	60	2.0	0	1.8
Rice, boiled	500	2.0	0.3	30.0	0	0.0	0	0.0
Spinach, boiled	130	5.0	0.5	1.5	600	4.0	25	0.0

How many times more proteins does roast chicken contain, then boiled rice?

MEDIUM

Upper Secondary-IGCSE

IMPORTANT

Biology for Cambridge IGCSE Workbook 4 th Edition Digital Access>Chapter 7 - Human Nutrition>Exercise 7.1>Q 5

Table 7.1 Shows the energy and nutrients contained in 100 g of five foods.

Food	Energy / KJ	Protein / g	Fat / g	Carbohydrate / g	Calcium / g	Iron / g	Vitamin C / mg	Vitamin D/ mg
Apple	150	0.2	0.0	9.0	0	0.2	2	0.0
Chicken roast	630	25.0	5.0	0.0	0	0.8	0	0.0
Egg, scrambled	1050	10.0	23.0	0.0	60	2.0	0	1.8
Rice, boiled	500	2.0	0.3	30.0	0	0.0	0	0.0
Spinach, boiled	130	5.0	0.5	1.5	600	4.0	25	0.0

What pattern can you see in the foods (in table 7.1) that contain carbohydrate?

MEDIUM

Upper Secondary-IGCSE

IMPORTANT

Biology for Cambridge IGCSE Workbook 4 th Edition Digital Access>Chapter 7 - Human Nutrition>Exercise 7.1>Q 6

Table 7.1 Shows the energy and nutrients contained in 100 g of five foods.

Food	Energy / KJ	Protein / g	Fat / g	Carbohydrate / g	Calcium / mg	Iron / mg	Vitamin C / mg	Vitamin D / mg
Apple	150	0.2	0.0	9.0	0	0.2	2	0.0
Chicken, roast	630	25.0	5.0	0.0	0	0.8	0	0.0
Egg, scrambled	1050	10.0	23.0	0.0	60	2.0	0	1.8
Rice, boiled	500	2.0	0.3	30.0	0	0.0	0	0.0
Spinach, boiled	130	5.0	0.5	1.5	600	4.0	25	0.0

Scrambled egg has the highest energy content per gram of all of the foods in the table. What data in Table 7.1 could explain why the energy content of scrambled egg is so high?

MEDIUM

Upper Secondary-IGCSE

IMPORTANT

Biology for Cambridge IGCSE Workbook 4 th Edition Digital Access>Chapter 7 - Human Nutrition>Exercise 7.1>Q 7

Table 7.1 shows the energy and nutrients contained in 100 g of the foods.

Food	Energy/KJ	Protein / g	Fat / g	Carbohydrate / g	Calcium / mg	Iron / mg	Vitamin C / mg	Vitamin D / mg
Apple	150	0.2	0.0	9.0	0	0.2	2	0.0
Chicken, roast	630	25.0	5.0	0.0	0	0.8	0	0.0
Egg, scrambled	1050	10.0	23.0	0.0	60	2.0	0	1.8
Rice, boiled	500	2.0	0.3	30.0	0	0.0	0	0.0
Spinach, boiled	130	5.0	0.5	1.5	600	4.0	25	0.0

A girl has anaemia. Which foods from the table would be most helpful for her to include in her diet? Explain your answer.

MEDIUM

Upper Secondary-IGCSE

IMPORTANT

Biology for Cambridge IGCSE Workbook 4 th Edition Digital Access>Chapter 7 - Human Nutrition>Exercise 7.1>Q 8

Table 7.1 shows the energy and nutrients contained in 100g of five foods.

Food	Energy / KJ	Protein / g	Fat / g	Carbohydrate/ g	Calcium / mg	Iron / mg	Vitamin C / mg	Vitamin D / mg
Apple	150	0.2	0.0	9.0	0	0.2	2	0.0
Chicken, roast	630	25.0	5.0	0.0	0	0.8	0	0.0
Egg, scrambled	1050	10.0	23.0	0.0	60	2.0	0	1.8
Rice, boiled	500	2.0	0.3	30.0	0	0.0	0	0.0
Spinach, boiled	130	5.0	0.5	1.5	600	4.0	25	0.0

Use the data in Table 7.1 to determine which of the five foods contains the greatest mass of water per 100 g. Show your working?

Mary Jones and Geoff Jones Solutions for Chapter: Human Nutrition, Exercise 1: Exercise 7.1

Mary Jones Biology Solutions for Exercise - Mary Jones and Geoff Jones Solutions for Chapter: Human Nutrition, Exercise 1: Exercise 7.1

Questions from Mary Jones and Geoff Jones Solutions for Chapter: Human Nutrition, Exercise 1: Exercise 7.1 with Hints & Solutions

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