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 biology improvement in food resources manure manures and fertilisers role of organic manures in soil management

Name the macronutrients provided by fertilizers.

  1. Nitrogen

  2. Phosphorous

  3. Potassium

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

  • Fertilizers, the chemically synthesized substances which are very rich in the plant nutrients like nitrogen, phosphorous and potassium.
  • Nitrogen (N) required for the leaf growth 
  • Phosphorus (P) required for the development of roots, flowers, seeds, and fruit 
  • Potassium (K) required for strong stem growth, movement of water in plants, promotion of flowering and fruiting. 

Therefore, the correct answer is option D.

Multiple choice biology natural resources and agriculture manure manures and fertilisers role of organic manures in soil management

Which one of the following nutrients is not available in fertilizers ?

  1. nitrogen

  2. phosphorus

  3. iron

  4. potassium.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Nitrogen, phosphorus and potassium (NPK) are the major source available in fertilizers. The most common synthetic fertilizers used in India are super phosphate, urea, calcium ammonium nitrate, ammonium sulphate and NPK fertilizers. 

Multiple choice

High potassium intake will decrease a cows ability to mobilize what?

  1. Bone phosphorus

  2. Bone calcium

  3. Immunoglobulins

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

High potassium intake interferes with magnesium absorption and calcium metabolism. Specifically, it inhibits the cow's ability to mobilize calcium from bone reserves, increasing the risk of milk fever.

Multiple choice biology breath and blood of life different types of circulatory systems stomata and transpiration transport in organisms

Choose the correct answers from the alternatives given .
Which of the following is not one of the four most common elements found in living organisms?

  1. Hydrogen

  2. Carbon

  3. Sulphur

  4. Nitrogen
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
The cells of living things are made mainly of four elements: carbon, hydrogen, oxygen and nitrogen. Phosphorus and calcium are next in abundance after these 4 elements. Almost 99% of the mass of the human body is made up of six elements: oxygen, carbon, hydrogen, nitrogen, calcium, and phosphorus.
So, the correct option is 'Sulphur'.
Multiple choice biology simple nutrients into cells blood and its components components of blood composition of blood

Mineral forming $90$% of the cations of blood plasma is

  1. $Mg$
  2. $Ca$
  3. $K$
  4. $Na$
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
Sodium is the most abundant element in blood plasma while calcium is the most abundant element in the human body.
Mg forms an important constituent of chlorophyll. Magnesium is centrally located in the chlorophyll. It consists of porphyrin ring which has magnesium ion in the center. 
Calcium is required for the contraction of muscles.
Potassium ions helps in the nerve transmission. For every three sodium ions two potassium ions are exchanged with the extracellular fluid.
Sodium is the most abundant mineral present in the extracellular fluid which helps in the nerve transmission. The sodium ions enters inside the nerve cell from the extracellular fluid and generates action potential. It leads to change in electrical potential that occurs across a plasma membrane during the passage of a nerve impulse. As, an impulse travels in a wave-like manner along the axon of a nerve, it causes a localised and transient switch in electric potential across the membrane from -60 mV to +45 mV. It is due to the fact that the sodium channels open and the potassium channels remain closed. 
So, the correct answer is option D.
Multiple choice biology simple nutrients into cells blood and its components components of blood composition of blood

Blood does not contain

  1. Calcium.

  2. Prothrombin.

  3. Fibrinogen.

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

Elastin is a highly elastic protein found in certain connective tissues throughout the body. It is mostly found in the extracellular matrix of the skin and internal organs of the body. Calcium, prothrombin, and fibrinogen are the blood clotting factors present in the blood. Blood is a fluid connective tissue it does not require elasticity hence elastin is absent in blood.

So, the correct answer is 'Elastin'.

Multiple choice thermodynamic principles of metallurgy general principles and processes of isolation of elements metallurgy chemistry

Iron is an essential nutrient for plants, which absorb it from the soil. Iron deficiency is often found in wet, clayey soils that have a high content of:

  1. carbonate

  2. chloride

  3. phosphate

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

Iron and carbon occurs combinedly. Iron ore contains carbon percentage more. In clay, wet soils carbon content is more. So, Iron deficiency is there. In reactions carbon changes to carbonate.

Multiple choice zoology respiration in organisms active transport and passive transport types of plant transport atp

Which of the following elements is needed as a component in cell membranes, nucleic acids and energy transfer?

  1. Sulphur

  2. Phosphorus

  3. Calcium

  4. Potassium
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
Phosphorus is a constituent of cell membranes, certain proteins, all nucleic acids and nucleotides. This element is involved in energy transfer such as ATP and ADP and activates coenzymes for amino acid production which is necessary for  protein synthesis. Further phosphorous is also a required for other metabolic processes such as photosynthesis, glycolysis, respiration and fatty acid synthesis.
Therefore, the correct answer is option B.
Multiple choice

Which macronutrient is the body's primary source of energy?

  1. Proteins

  2. Fats

  3. Carbohydrates

  4. Minerals
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Carbohydrates are the body's primary source of energy, providing 4 calories per gram.

Multiple choice

Which macronutrient is responsible for building and repairing tissues?

  1. Carbohydrates

  2. Fats

  3. Proteins

  4. Minerals
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Proteins are responsible for building and repairing tissues, and they also provide 4 calories per gram.