Biology

Minerals and Nutrients

849 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 biology mineral nutrition in plants hydroponics nutrients and nutrition hydroculture

Which one of the following roles is not charcteristic of an essential element?

  1. Being a component of biomolecules

  2. Changing the chemistry of soil

  3. Being a structural component of energy related chemical compounds.

  4. Activation or inhibition of enzymes.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

A dirt's fruitfulness, which is a substantial property, is simpler to change than the dirt's physical properties. A natural issue, the dirt minerals present, and the seepage conditions all impact soil shading. 

So, the correct option is 'Changing the chemistry of soil'.

Multiple choice biology mineral nutrition in plants hydroponics nutrients and nutrition hydroculture

Match the following essential elements(List I) with their respective roles(List-II) and select the correct answer.

List-I List-II
a. Chlorine $1$. Constituent of plastocyanin
b. Copper $2$. Constituent of nitrate reeducates
c. Molybdenum $3$. Constituent of alcohol dehydrogenate
d. Zinc $4$. Required for $CO _2$ evolution in photosynthesis
$5$. Required for phosphate transfer
  1. A-$4$, B-$1$, C-$3$, D-$2$
  2. A-$1$, B-$2$, C-$5$, D-$3$
  3. A-$1$, B-$4$, C-$5$, D-$2$
  4. A-$4$, B-$1$, C-$2$, D-$3$
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Chlorine is required for water splitting (evolution of O2), Copper is a constituent of plastocyanin, Molybdenum is a constituent of nitrate reductase, and Zinc is a constituent of alcohol dehydrogenase.

Multiple choice evs seeds and seeds plant adaptation and modification leaves leaf modification

Insectivorous plants such as Venus fly trap catch and digit insects in order to supplement the deficiency of.

  1. sulphur

  2. nitrogen

  3. potassium

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

Carnivorous plants typically grow in nutrient-poor, boggy soils where nitrogen is scarce. They capture insects to obtain nitrogen for protein synthesis.

Multiple choice biology transport in plant transport of water and minerals conduction of water and minerals absorption of water and minerals in plants

Which of the four most abundant elements in most plants (C, H, O and N), does a terrestrial green plant procure mainly through its roots from the soil?

  1. H and O

  2. H and N

  3. C and O

  4. O and N
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Plants obtain Carbon from CO2 in the air, Oxygen from air and water, Hydrogen from water, and Nitrogen from the soil. Therefore, H and N are the elements procured mainly through roots.

Multiple choice biology transport in plant transport of water and minerals conduction of water and minerals absorption of water and minerals in plants

The active uptake of minerals depends upon

  1. Respiration

  2. Transpiration

  3. Photorespiration

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

Plants can absorb minerals that are dissolved in solution.The minerals present in the soil can be absorbed through their root hair cells. However, the concentration of minerals in the soil is very low. While water is absorbed by the plants through osmosis,  minerals are absorbed as ions by active transport (transport against the law of diffusion, by spending cellular energy). The cell membrane has transport proteins that allow the ions to cross the membrane. The ions then move upward through the xylem, to the leaves and other aerial parts of the plant. The absorption of minerals using respiratory energy is called active absorption and is influenced by temperature, oxygen concetration and respiratory poisons

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

Crystalline rocks are natural source of biogenetic element

  1. Calcium

  2. Phosphorus

  3. Magnesium

  4. Sodium

  5. Sulpher
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Phosphorus is primarily found in the Earth's crust in the form of phosphate rocks, which are crystalline in nature. It is released into the ecosystem through the weathering of these rocks.

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.