Macronutrients are important nutrients that your body requires in significant quantities to work at its best. There are three primary macronutrients: carbohydrates, proteins, and fats. These nutrients are vital because your body either cannot produce them or cannot produce enough of them on its own.
To illustrate, proteins provide your body with essential amino acids, and fats contain important fatty acids. Your body uses these components for specific purposes. Macronutrients also supply energy in the form of calories. Carbohydrates are the primary energy source, but if necessary, your body can use other macronutrients for energy.
Here’s the calorie content for each macronutrient:
- Carbohydrates: 4 calories per gram
- Protein: 4 calories per gram
- Fat: 9 calories per gram
Macronutrients MCQ for NEET
Ques 1. Deficiency of this causes the death of root tips and stem
1. carbon
2. nitrogen
3. calcium
4. phosphorous
Answer: calcium
Ques 2. This macronutrients is a structural component of a cell wall activating the enzymes
1. nitrogen dioxide
2. calcium
3. carbon monoxide
4. boron dioxide
Answer: calcium
Ques 3. Mustard’s sinigrin pungent principle can be attributed to
1. tannins containing nitrogen
2. alkyloids containing cyanide radicle
3. glycoside containing sulphur
4. glycoside containing amino group
Answer: glycoside containing sulphur
Ques 4. Carbon is made available to crop plants in this form
1. element carbon
2. carbonates
3. carbon dioxide
4. amino acids
Answer: carbon dioxide
Ques 5. Plant of cabbage consumes phosphorous from
1. phosphate rocks
2. water irrigated soil
3. dry soil
4. none of the above
Answer: water irrigated soil
Ques 6. This macronutrient checks the opening and closing of the stomata and decreases the water loss from leaves
1. nitrogen
2. urea
3. methane
4. potassium
Answer: potassium
Ques 7. The possible supplies of nitrogen and phosphorous ions in the soil is exhausted as they are found as
1. particles having no charge
2. ions that are negatively charged
3. ions that are positively charged
4. a disproportionate mixture of negatively charged ions
Answer: ions that are negatively charged
Ques 8. This is not absorbed through soil
1. Carbon
2. Nitrogen
3. Potassium
4. All of these
Answer: Carbon
Ques 9. This essential element is not a constituent of any enzyme however triggers the activity of many enzymes
1. K
2. Mn
3. Zn
4. Mg
Answer: K
Ques 10. This is a major macronutrient, component of vitamins and enzymes
1. sulphur
2. sea salt
3. carbon dioxide
4. calcium phosphate
Answer: sulphur
