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Question 18M.3.SL.TZ2.15

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Date May 2018 Marks available [Maximum mark: 7] Reference code 18M.3.SL.TZ2.15
Level SL Paper 3 Time zone TZ2
Command term Determine, Explain, State, Suggest Question number 15 Adapted from N/A
15.
[Maximum mark: 7]
18M.3.SL.TZ2.15

A student recorded their dietary consumption over a 24-hour period into diet tracker software. The record of their consumption is shown in the table.

The bar chart shows the degree to which the student’s diet met the recommended daily target for five food groups.

(a)

Using the bar chart, determine the percentage of the recommended daily target of protein consumed by the student.

 

[1]

Markscheme

14/15 «%»

Examiners report

 

(b)

Suggest which essential dietary requirement might be missing if insufficient protein is consumed by the student.

[1]

Markscheme

«essential» amino acids

Examiners report

 

(c)

The tracker indicated that the student had exceeded the recommended intake of dietary sodium. Overconsumption of dietary sodium can lead to hypertension. Explain what is meant by hypertension, referring to specific diastolic and systolic values.

[3]

Markscheme

a. hypertension is high blood pressure 

b. systolic is when the heart is contracting and diastolic is relaxing 

c. systolic pressure higher than 120/130/140 «mmHg in an adult» 

d. diastolic pressure higher than 80/90 «mmHg in an adult»

For answers c. and d. the units are not required.

Accept 12/13/14 for systolic and 8/9 for diastolic as this is how it is expressed in many countries.

Examiners report

 

(d)

The recommended daily intake of vitamin D is 15 μg. This student consumed just 4 μg. State two potential health consequences of vitamin D deficiency.

[2]

Markscheme

a. poor bone mineralization 

b. rickets/osteoporosis/osteomalacia 

c. poor absorption of dietary calcium

Allow for other verifiable answers.

Examiners report