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 chemistry the s-block elements (alkali and alkaline earth metals) biological importance of sodium and potassium biological importance of elements biological importance of s block elements biological importance of magnesium and calcium

Which element has high concentration in plants, as compared to sodium?

  1. Potassium

  2. Calcium

  3. Silicon

  4. none
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Plants need a small amount but high concentration of K for specific functions in the cytoplasmand a major portion (∼90%) of it is localized in vacuoles, where it acts as an osmoticum. Maintenance can be achieved by other cation like sodium too .

Multiple choice chemistry the s-block elements (alkali and alkaline earth metals) biological importance of sodium and potassium biological importance of elements biological importance of s block elements biological importance of magnesium and calcium

What is used in synthesis of chlorophyll In C4 plants?

  1. Sodium

  2. Iron

  3. Potassium

  4. Aluminium
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

In C4 plants, sodium is a micronutrient that aids in metabolism, specifically in regeneration of phosphoenolpyruvate (involved in the biosynthesis of various aromatic compounds, and in carbon fixation) and synthesis of chlorophyll.

Multiple choice chemistry the s-block elements (alkali and alkaline earth metals) biological importance of sodium and potassium biological importance of elements biological importance of s block elements biological importance of magnesium and calcium

Which element is present in blood plasma in larger quantity?

  1. Sodium

  2. Potassium

  3. Iron

  4. Copper
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
Option $ (A) $ is correct.
Sodium is present in blood plasma in larger quantity. It is present in extracellular fluid and interstitial fluids.
Hence, even though sodium diffuses into the cell due to the concentration gradient, there is a sodium pump which pushes it back again.
Multiple choice biology micro - organism useful actions of algae introduction to algae algae

The element present in thyroxin is obtained from

  1. Laminaria

  2. Polysiphonia

  3. Porphyro

  4. Gelldium
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Laminaria is a type of seaweed that is native to Japan. Laminaria contains iodine, an element that the body needs to make thyroid hormones. It is also a rich source of iron and potassium. Despite serious safety concerns about Laminaria, some people use Laminaria as medicine. Laminaria is used for weight loss, high blood pressure, as a bulk laxative for constipation, and for treating radiation sickness. It is also used for preventing cancer. Laminariales (kelps) are a major biogeochemical pump of iodine. "Laminaria" species of kelp is the species highest in iodine content. 

So, the correct answer is 'Laminaria'

Multiple choice physics some natural phenomena introduction to lightning lightning analysis of natural phenomena

Which nutrient is produced when large amount of energy breaks the atom bonds of nitrogen?

  1. Protein

  2. Mineral

  3. Iron

  4. Calcium
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Energy in the lightning can break the strong bond between the nitrogen molecules. Atoms separated are than free to combine with other elements. Proteins forms the building block of life is composed of nitrogen, carbon and oxygen.

Multiple choice bio-chemistry digestive system of human absorption mechanism absorption digestion

Which of the following mineral is needed for amino acid to pass into the bloodstream?

  1. Potasium

  2. Sodium

  3. Iron

  4. Both A and B
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
Amino acids constitute the proteins. They are absorbed in the blood by active transportation using sodium-potassium amino acid transporter. They use ATP in the process and transported from the lumen to the cells against the gradient.
So the correct answer is 'Both A and B'.
Multiple choice chemistry the s-block elements (alkali and alkaline earth metals) biological importance of magnesium and calcium biological importance of elements biological importance of s block elements biological importance of sodium and potassium

Which  of the following statement is false?

  1. $Mg^{2+}$ ion forms a complex with $ATP$
  2. $Ca^{2+}$ ions are important in blood clothing.
  3. $Ca^{2+}$ ions are not important in maintaining the regular beating of the hear
  4. $Mg^{2+}$ ions are important in the green parts of plants
Reveal answer Fill a bubble to check yourself
A Correct answer
Multiple choice chemistry the s-block elements (alkali and alkaline earth metals) biological importance of magnesium and calcium biological importance of elements biological importance of s block elements biological importance of sodium and potassium

Which one of the following has magnesium?

  1. Vitamin $B _{12}$

  2. Chlorophyll

  3. Haemocyanin

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

$Mg$ is present in chlorophyll which is a green pigment and is used in photosynthesis in green plants.

Hence option B is correct.

Multiple choice chemistry the s-block elements (alkali and alkaline earth metals) biological importance of magnesium and calcium biological importance of elements biological importance of s block elements biological importance of sodium and potassium

State True or False.
Magnesium is an essential constituent of chlorophyll, the green colouring matter of plants.

  1. True

  2. False
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Magnesium is the central metal ion in the porphyrin ring of the chlorophyll molecule, which is essential for photosynthesis.

Multiple choice chemistry the s-block elements (alkali and alkaline earth metals) biological importance of magnesium and calcium biological importance of elements biological importance of s block elements biological importance of sodium and potassium

The metal ions (charged particles) that are required for contraction of muscles in human beings and animals are ions of:

  1. calcium

  2. sodium

  3. potassium

  4. iron
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

$Ca^{2+}$ ions are required for contraction of muscles in humans.