Biology

Minerals and Nutrients

936 Questions

Review essential biology concepts regarding minerals and nutrients in this question bank. It covers trace elements required by plants and minerals crucial for human blood and bone formation. These facts frequently appear in general science exams.

Essential plant micronutrientsChlorophyll synthesis elementsHuman blood and bone mineralsTrace elements in physiology

Minerals and Nutrients Questions

Multiple choice

Which of the following nutrients is not present in milk?

  1. Calcium

  2. Iron

  3. Potassium

  4. Protein
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Milk is a rich source of calcium, protein, and potassium, but it is notoriously poor in iron. Infants require iron supplementation if fed exclusively on milk for extended periods.

Multiple choice

Zinc in the human body, in grams, is

  1. 3 to 4

  2. 1 to 2

  3. 2 to 3

  4. 0.5 to 1.5
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The total amount of zinc in the human body is typically estimated to be between 1.5 and 2.5 grams, making 1 to 2 grams the most accurate range provided among the options.

Multiple choice

Which are components of marble?

  1. Carbon

  2. Oxygen

  3. Calcium

  4. All of the above

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Marble is a metamorphic rock composed primarily of calcium carbonate (CaCO3), which contains calcium, carbon, and oxygen. Therefore, all these elements are components of marble.

Multiple choice

Vesicular arbuscular mycorriza plays a role in:

  1. Nitogen fixation

  2. Sulphur nutrition

  3. Phosphorus nutrition

  4. All the above
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Vesicular-arbuscular mycorrhiza (VAM) are symbiotic fungi that significantly enhance the uptake of phosphorus by plant roots.