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 zoology ecosystem : structure and function biogeochemical cycles - sedimentary biogeochemical cycle nitrogen and phosphorus cycles

Which of the following elements have only the sedimentary type of nutrient cycle?

  1. Carbon

  2. Hydrogen

  3. Nitrogen

  4. Phosphorus
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Sedimentary cycles involve the transportation of matter through the ground to water; that is from the lithosphere to the hydrosphere. Most phosphates originate as salts in ocean sediments or in rocks. Over time, geological uplift brings these sediments to the surface, and weathering releases the phosphate ions. Plants can then absorb these phosphates from the soil and use it in cellular processes. Phosphate taken up by plants may then be passed on to animals when the plant is consumed by herbivore that, in turn, may be consumed by carnivores. After death, the animal or plant decays, and the phosphates are returned to the soil by way of bacterial decomposition. Runoff from the land may carry leached phosphate back to the ocean, where it eventually enters sediments and is reincorporated into rock.

Therefore, the correct answer is option D.

Multiple choice zoology ecosystem : structure and function biogeochemical cycles - sedimentary biogeochemical cycle nitrogen and phosphorus cycles

Which one of the following element is the critical limiting factor in the function of ecosphere because of its irretrievable loss into the ocean ______________.

  1. Phosphorus

  2. Calcium

  3. Magnesium

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

A large amount of phosphate is lost in the sea by sedimentation. This is irretrievable loss.

So, the correct answer is 'Phosphorus'

Multiple choice zoology ecosystem : structure and function biogeochemical cycles - sedimentary biogeochemical cycle nitrogen and phosphorus cycles

Crystalline rocks are natural source of

  1. Calcium

  2. Phosphorus

  3. Magnesium

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

There are 4 layers of Earth, namely lithosphere (land), hydrosphere (water), biosphere (living), and atmosphere (air). Lithosphere of Earth makes up the hard and rigid outer layer of the Earth. It is reservoir of phosphorus. The largest reservoir of phosphorus is sediments or sedimentary rocks. Crystalline rocks are sedimentary rocks. They are the natural source of phosphorous.  

Thus, the correct answer is 'Phosphorous.' 

Multiple choice biology transport in plants transport of food, water and minerals theories of translocation transport in the phloem of plants

Nutrient which are required in small quantities are called as

  1. Macronutrients

  2. Micronutrients

  3. Primary nutrients

  4. None of the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

A nutrient which is required in small quantities is called as a micronutrient. The micronutrients are boron, chlorine, copper, iron, manganese, molybdenum and zinc. These plant food elements are used in very small amounts, but they are just as important to plant development and profitable crop production as the major nutrients. Especially, they work "behind the scene" as activators of many plant functions.

Thus, the correct answer is 'Micronutrients'.

Multiple choice evs mud and stones soil - formation and profile soil-nature soil profile

Mineral nodules present in ocean which can meet shortage of important soil nutrient are

  1. Manganese nodules

  2. Phosphorite nodules

  3. Magnesium nodules

  4. All of the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
  • Phosphorite rocks are spherical concentrations that are randomly distributed along the floor of continental shelves. It contains high amounts of phosphate minerals. 
  • The size of Phosphorite nodules can range up to several tens of centimetres.
  • Hence Mineral nodules present in the ocean which can meet the shortage of important soil nutrient are Phosphorite nodules.
  • So, the correct answer is 'Phosphorite nodules'.
Multiple choice biology transport in plant transport in the phloem of plants vascular tissue permanent tissue

Minerals are absorbed by plants:

  1. In colloidal form

  2. In Ionic form

  3. In precipitated form

  4. None of these
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Minerals are absorbed by plants - (B) In Ionic form.


Plant absorb minerals in ionic form __
Phosphate $(HPO _4^-)$ potassium ion $(K^+)$, Nitrate $(NO _3^-)$ mineral can be absorbed by both passive and Active methods. Passive mineral absorption does not require the expenditure of metabolic energy and Active mineral absorption does require the expenditure of metabolic energy. In roots, the mineral absorption usually takes place through the meristematic region of the root tip.

Multiple choice evs nutrition and its deficiency general functions of food nutrition and its need in plants nutrition and its need

98% of living body is formed of six elements carbon, hydrogen, nitrogen, oxygen and 

  1. S and Mg

  2. Mg and Na

  3. P and S

  4. Ca and P
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Correct answer: (D) Ca and P

98% of living body is formed of six elements carbon, hydrogen, nitrogen, oxygen and calcium and phosphorus. 63% of human body contains water, so oxygen and hydrogen are present in large quantity. Carbon is also one of the main element present in human body because it is the main unit of organic compounds. Nitrogen is present in proteins and nucleic acids like DNA and RNA. Calcium is the main structural component present in bones. It is most abundant mineral in living body. Phosphorus is present in ATP molecule and bones.

Multiple choice

Where is the iron found in the body?

  1. Heart

  2. Hemoglobin

  3. Kidney

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

Iron is a central component of the hemoglobin molecule, which allows it to bind to oxygen. This is where the majority of the body's iron is utilized.

Multiple choice chemistry p- block elements-ii anomalous properties of nitrogen nitrogen - 15 group group 15 elements

Which of the following does not contain nitrogen?

  1. Proteins in plants and animals

  2. Members of apatite family

  3. Indian saltpetre

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

Apatite is a group of phosphate minerals, usually referring to hydroxylapatite, fluorapatite and chlorapatite, with high concentrations of $OH^{-},F{-},Cl{-}$ respectively, in the crystal. Proteins in plants and animals have nitrogen. Chile saltpetre and Indian saltpetre are $NaNO _3$ and $KNO _3$ respectively.