Tag: minerals

Questions Related to minerals

Which one is wrong combination?

bio-chemistry minerals minerals and vitamins nutrition and diet role of various nutrients

  1. $N _2$-Amino acid

  2. Fe-cytochrome

  3. Na-Protein

  4. Mg-Chlorophyll

  5. P-DNA

Show answer
Correct Option: C
Explanation:

Na- Protein is wrong combination as Nitrogen (N) is needed for the protein formation. Nitrogen is the main constituent of the amino acid that helps in the formation of protein

Thus, the correct answer is option C.

Which of the following element is not essential for plants?

bio-chemistry minerals minerals and vitamins nutrition and diet role of various nutrients

  1. Iron

  2. Zinc

  3. Potassium

  4. Iodine

Show answer
Correct Option: D
Explanation:

Plants may absorb a number of minerals that are not essential for their growth. Iodine is a non essential mineral element. Iron, zinc and potassium are essential mineral elements.

Nutrition involving engulfment` 'of the whole or part of a plant or an animal in solid or in liquid state is known

bio-chemistry minerals minerals and vitamins nutrition and diet role of various nutrients

  1. Holozoic

  2. Saprozoic

  3. Parasitic

  4. Symbiotic

Show answer
Correct Option: A

Which of the group of elements is not essential for a normal plant?

bio-chemistry minerals minerals and vitamins nutrition and diet role of various nutrients

  1. K, Ca, Mg

  2. Fe, Zn, Mn, B

  3. Pb, I, Na

  4. Mg, Fe, Mo

Show answer
Correct Option: C
Explanation:

The plant ash reveals the presence of 40 elements but all are not essential for plant nutrition, only a few are essential for growth and development of plants. These are called as the essential elements. The essential elements may be grouped as major elements or macronutrients and trace elements or micronutrients, based on their requirement by plants. 

Major elements or macronutrients are required in large amounts and form the plant constituents. These include carbon, hydrogen, oxygen, nitrogen, phosphorus, potassium, calcium, magnesium and sulphur. These elements form an integral part of complex organic molecules. Some of these elements help in the functioning of enzyme systems. The sources of macronutrients are generally the soil or the atmosphere. 
Trace elements or micronutrients are elements, like iron, boron, manganese, copper, zinc and molybdenum. They are required for plants only in very small amounts but these are indispensable for the normal growth and development of plants. 
Lead, Iodine and sodium are generally not required by plants and are non essential elements for plant mineral nutrition.

Engulfing of food in solid or fluid state is

bio-chemistry minerals minerals and vitamins nutrition and diet role of various nutrients

  1. Saprozoic nutrition

  2. Parasitic nutrition

  3. Saprophytic nutrition

  4. Holozoic nutrition

Show answer
Correct Option: D
Explanation:
Holozoic nutrition is a type of heterotrophic nutrition that is characterized by the ingestion and internal processing of gaseous, liquid or solid food particles Protozoa, such as amoebas, and most of the animals, exhibit this type of nutrition. There are several stages of holozoic nutrition, which often occur in separate compartments within an organism :
  • Ingestion 
  • Digestion
  • Absorption
  • Assimilation and
  • Egestion.
Hence, the engulfing of food in a solid or liquid state is holozoic nutrition.
So, the correct answer is 'holozoic nutrition'.

Which of the following occurs in maximum concentration in blood plasma (extracellular fluid)?

bio-chemistry minerals minerals and vitamins nutrition and diet role of various nutrients

  1. K$^+$

  2. Mg$^{+2}$

  3. Ca$^{+2}$

  4. Na$^+$

Show answer
Correct Option: D
Explanation:

Term ECF is used for "Extra Cellular Fluid". The outside environment of a living cell is rich in sodium where as interior of a living cell is always rich in potassium ions. This differential concentration is maintained by sodium potassium pump operating in cell membrane of living cells.

Which of the following animal/s exhibit a holozoic mode of nutrition?

bio-chemistry minerals minerals and vitamins nutrition and diet role of various nutrients

  1. Amoeba

  2. Paramoecium

  3. Honey bee

  4. All of the above

Show answer
Correct Option: D
Explanation:

Holo-whole and zoic means animals so animal that eats their food completely in the form of a liquid or solid and process it inside the body. The food particle is ingested and then enzymes act on it to digest it. It includes five steps ingestion, digestion, absorption, assimilation and excretion and most of the animals practice this type of nutrition including humans.

So, the correct option is 'All of the above'

Which element is most abundant outside animal cell?

bio-chemistry minerals minerals and vitamins nutrition and diet role of various nutrients

  1. Na

  2. K

  3. I$ _2$

  4. Fe

Show answer
Correct Option: A
Explanation:

Living systems in general maintain a high intracellular concentration of potassium and low intracellular concentration of sodium. Living systems operate sodium potassium pump for this purpose which actively throws out sodium from the cytoplasm and transports potassium ions from extracellular environment to inside the cytoplasm.

Liver necrosis and muscular dystrophy is measured by the lack of this trace element.

bio-chemistry minerals minerals and vitamins nutrition and diet role of various nutrients

  1. Arsenic

  2. Molybdenum

  3. Zinc

  4. Selenium

Show answer
Correct Option: D
Explanation:

Epidemiological studies revels that low serum Selenium levels are associated with increased risk of  cardio-vascular diseases, liver necrosis, muscular dystrophy, pancreatic fibrosis, reproductive disorders and various cancers.
Selenium, along with vitamin E, prevents the development of hepatic necrosis and muscular dystrophy.
The good sources of Selenium are organ meat ( liver, kidney) and sea food.

Liver necrosis and muscular dystrophy are caused by the lack of this trace element

bio-chemistry minerals minerals and vitamins nutrition and diet role of various nutrients

  1. Arsenic

  2. Molybdenum

  3. Zinc

  4. Seleneium

Show answer
Correct Option: D
Explanation:

Epidemiological studies reveals that low serum Selenium levels are associated with increased risk of cardio-vascular diseases, liver necrosis, muscular dystrophy, pancreatic fibrosis, reproductive disorders and various cancers.
Selenium, along with vitamin E, prevents the development of hepatic necrosis and muscular dystrophy.
The good sources of Selenium are organ meat ( liver, kidney) and sea food.