Mineral Nutrition Mock Test 4 | NEET Biology Mock Tests Free

#1. The element needed for activation of carboxylases and in the synthesis of auxin is

Copper

Iron

Zinc

Manganese

#2. Select the mismatching pair regarding elements that activate enzymes

Ca2+ – Phosphoenol pyruvate carboxylase

Zn2+ – Alcohol dehydrogenase

Mo – Nitrogenase

Mg2+ – RUBISCO

#3. Molybdenum is a component of many enzymes such as

Catalase & nitrate reductase

Nitrogenase & nitrate reductase

Catalase & peroxidase

Glutamate dehydrogenase & peroxidase

#4. The technique of growing plants in a defined nutrient solution without soil is known as

Geoponics

Aeroponics

Hydroponics

None of these

#5. Which statement is not true regarding magnesium?

It is a constituent of ring structure of haemoglobin.

It activates enzymes of respiration & photosynthesis.

It is involved in the synthesis of DNA and RNA.

It helps to maintain the ribosome structure.

#6. Decomposition of organic nitrogen of dead plants and animals into ammonia is called

Nitrogen fixation

Ammonification

Denitrification

Nitrification

#7. The best-defined function of manganese is in the

Absorption of water and minerals

Photolysis of water during photosynthesis.

Nitrogen fixation

Calvin cycle during photosynthesis

#8. During cell division, calcium is used in the synthesis of cell wall, particularly as

Calcium pectate in middle lamella

Calcium carbonate in primary wall

Calcium phosphate in primary wall

Calcium bicarbonate in middle lamella

#9. Necrosis (death of tissue) is due to the deficiency of

N, K, Mg & S

N, K, S & Mo

Fe, Mn, Zn & Mo

Ca, Mg, Cu, K

#10. What is true about potassium?

All the above

It is essential in meristematic tissues, buds, leaves & root tips

It is involved in protein synthesis

It maintains an anion-cation balance in cells

#11. Micronutrients are needed only in very small amounts of

Less than 1 mmole Kg–1 of dry matter

Less than 5 mmole Kg–1 of dry matter

Less than 10 mmole Kg–1 of dry matter

Less than 100 mmole Kg–1 of dry matter

#12. Mineral salts absorbed from soil are translocated through

Xylem independent of ascending stream of water.

Phloem along with ascending stream of water.

Xylem along with ascending stream of water.

Phloem independent of ascending stream of water.

#13. Any mineral ion concentration in tissues that reduces the dry weight of tissues by about ...... is considered toxic.

30%

1%

10%

20%

#14. In plants, boron is required for

All the above

Pollen germination

Cell elongation

Uptake & utilisation of Ca2+

#15. The process of conversion of atmospheric nitrogen (N2 or N≡N) to ammonia is called

Ammonification

Denitrification

Nitrification

Nitrogen fixation

#16. Which of the following sets have only macronutrients?

Oxygen, nitrogen, calcium, sulphur, potassium

Carbon, calcium, zinc, boron, potassium

Oxygen, nitrogen, phosphorous, iron, potassium

Carbon, nitrogen, manganese, sulphur, chlorine

#17. Regarding the process of absorption of elements, which statement is true?

The first phase of absorption is the passive uptake of ions into the symplast of cells.

The first phase of absorption is the passive uptake of ions into the apoplast of cells.

The first phase of absorption is the active uptake of ions into the symplast of cells.

The first phase of absorption is the active uptake of ions into the apoplast of cells.

#18. Deficiency symptoms of nitrogen, potassium and magnesium are visible first in the

Senescent leaves

Senescent stems

Tender stems

Tender leaves

#19. Main symptom of manganese toxicity is the

Yellow spots surrounded by chlorotic veins

Brown spots surrounded by chlorotic veins

Brown spots surrounded by necrotic veins

Yellow spots surrounded by necrotic veins

#20. Sulphur containing amino acids are

Cysteine & methionine

Tryptophan and serine

Methionine and tryptophan

Valine and cysteine

#21. Select the false statement

There are techniques to detect the minerals even at a very low concentration of 10-8 g/mL.

About 17 elements are found in different plants.

Some plants growing near nuclear test sites take up radioactive strontium.

Some plant species near mining sites can accumulate selenium, gold etc.

#22. How many elements are absolutely essential for plant growth and metabolism?

67

20

17

13

#23. The loss of chlorophyll leading to yellowing in leaves is

Canker

Necrosis

Chlorosis

Porosis

#24. Of the following statements given, which one is the criterion for essentiality of an element?

All the above.

It must be directly involved in the plant metabolism.

The requirement of an element must be specific.

An element must be needed for normal growth and reproduction.

#25. Nitrogen is the constituents of

All the above

Chlorophyll, vitamins and hormones

Nucleic acids and nucleotides

Amino acids and proteins

#26. The main elements essential for determining the solute concentration and the anion-cation balance in cells are

Mg2+, Ca2+, Cl-

Na+, Ca2+, Cl-

Mg2+, K+, HCO3-

Na+, K+, Cl-

#27. Which of the following sets have only micronutrients?

Fe, Mn, Cu, Mo, Zn, B, Cl, Ni

O, Mn, Cu, Mo, Zn, B, Cl, N

Ca, K, Cu, Mo, Zn, B, Cl, Ni

Fe, Mn, Ca, Mo, Zn, K, Cl, Ni

#28. Regarding hydroponics, which statement is wrong?

It is used to identify the essential elements needed for plants and their deficiency symptoms

It is demonstrated by Julius von Sachs in 1860

In hydroponics, nutrient solution is aerated for optimum growth

Hydroponics is not suitable for the commercial production of vegetables

#29. Symptoms of Mn toxicity in plants may actually be the

Symptoms of Zn, Mo & Ca toxicity

Symptoms of Fe, Mg & Ca toxicity

Deficiency symptoms of Fe, Mg & Ca

Deficiency symptoms of Zn, Mo & Ca

#30. In plants, nitrogen is absorbed mainly as

NO3

NO2

NH4

NH2

Mineral Nutrition Mock Test 4 | NEET Biology Mock Tests Free

#1. The element needed for activation of carboxylases and in the synthesis of auxin is

#2. Select the mismatching pair regarding elements that activate enzymes

#3. Molybdenum is a component of many enzymes such as

#4. The technique of growing plants in a defined nutrient solution without soil is known as

#5. Which statement is not true regarding magnesium?

#6. Decomposition of organic nitrogen of dead plants and animals into ammonia is called

#7. The best-defined function of manganese is in the

#8. During cell division, calcium is used in the synthesis of cell wall, particularly as