Tag: minerals

Quizzes (9) Questions (17)

Questions Related to minerals

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

Which one is wrong combination?

  1. $N _2$-Amino acid

  2. Fe-cytochrome

  3. Na-Protein

  4. Mg-Chlorophyll

  5. P-DNA
Reveal answer Fill a bubble to check yourself
C Correct answer
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.

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

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

  1. K, Ca, Mg

  2. Fe, Zn, Mn, B

  3. Pb, I, Na

  4. Mg, Fe, Mo
Reveal answer Fill a bubble to check yourself
C Correct answer
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.

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

Engulfing of food in solid or fluid state is

  1. Saprozoic nutrition

  2. Parasitic nutrition

  3. Saprophytic nutrition

  4. Holozoic nutrition
Reveal answer Fill a bubble to check yourself
D Correct answer
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'.
Multiple choice bio-chemistry minerals minerals and vitamins nutrition and diet role of various nutrients

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

  1. K$^+$
  2. Mg$^{+2}$
  3. Ca$^{+2}$
  4. Na$^+$
Reveal answer Fill a bubble to check yourself
D Correct answer
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.

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

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

  1. Amoeba

  2. Paramoecium

  3. Honey bee

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

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

Which element is most abundant outside animal cell?

  1. Na

  2. K
  3. I$ _2$

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

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

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

  1. Arsenic

  2. Molybdenum

  3. Zinc

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

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

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

  1. Arsenic

  2. Molybdenum

  3. Zinc

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