Which of the following do not produce energy but are still essential for the human body ?

examrobotsa's picture
Q: 23 (IES/2013)
Which of the following do not produce energy but are still essential for the human body ?

question_subject: 

Science

question_exam: 

IES

stats: 

0,55,68,8,13,47,55

keywords: 

{'energy': [0, 0, 1, 2], 'carbohydrates': [5, 0, 1, 3], 'vitamins': [3, 0, 5, 9], 'proteins': [1, 1, 0, 0], 'human body': [40, 2, 44, 29], 'fats': [0, 0, 0, 1]}