What are the deficiency symptoms of Molybdenum in plants? -Biology

What are the deficiency symptoms of Molybdenum in plants? -Biology
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Deficiency of molybdenum causes: (a) Wilting (b) Mottling (c) Reclamation (d) Necrosis

Description : Deficiency of molybdenum causes: (a) Wilting (b) Mottling (c) Reclamation (d) Necrosis

Last Answer : Ans. ((b))

The necrotic ring spot disease of stone fruits (cherry, peach, plum, etc.) is caused by (a) a bacterium (b) fungal infection (c) molybdenum deficiency (d) virus

Description : The necrotic ring spot disease of stone fruits (cherry, peach, plum, etc.) is caused by (a) a bacterium (b) fungal infection (c) molybdenum deficiency (d) virus

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Molybdenum deficiency affects the activity of – (1) All of the given options (2) Chlorate reductase (3) Nitrogenase (4) Nitrate reductase

Description : Molybdenum deficiency affects the activity of – (1) All of the given options (2) Chlorate reductase (3) Nitrogenase (4) Nitrate reductase

Last Answer : (4) Nitrate reductase Explanation: Numerous investigators have shown that nitrate nitrogen accumulates in higher plants and fungi which are deficient in molybdenum. In molybdenum-deficient plants grown in the ... in the decrease of free amino acids in the plants in comparison to normal plants.

Whip tail disease of cauliflower is caused by deficiency of— (A) Nitrogen (B) Boron (C) Molybdenum (D) Zinc

Description : Whip tail disease of cauliflower is caused by deficiency of— (A) Nitrogen (B) Boron (C) Molybdenum (D) Zinc

Last Answer : (C) Molybdenum

Molybdenum deficiency affects the activity of : (1) All of the given options (2) Chlorate reductase (3) Nitrogenase (4) Nitrate reductase

Description : Molybdenum deficiency affects the activity of : (1) All of the given options (2) Chlorate reductase (3) Nitrogenase (4) Nitrate reductase

Last Answer :  Nitrate reductase

What are the deficiency symptoms of carbon, hydrogen and oxygen in plants? -Biology

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Which among the following elements increases the absorption of water and calcium in plants? (1) Manganese (2) Boron (3) Copper (4) Molybdenum

Description : Which among the following elements increases the absorption of water and calcium in plants? (1) Manganese (2) Boron (3) Copper (4) Molybdenum

Last Answer : (2) Boron Explanation: Boron increases the absorption of water and calcium in the plants. It helps in the metabolic activities in plants. Boron is necessary in order for sugar to move through protoplasmic membranes.

Which among the following elements increases the absorption of water and calcium in plants ? (1) Manganese (2) Boron (3) Copper (4) Molybdenum

Description : Which among the following elements increases the absorption of water and calcium in plants ? (1) Manganese (2) Boron (3) Copper (4) Molybdenum

Last Answer : Boron

Deficiency symptoms of calcium on plants first appear at— (A) Lower leaves (B) Middle leaves (C) Terminal leaves (D) All leaves

Description : Deficiency symptoms of calcium on plants first appear at— (A) Lower leaves (B) Middle leaves (C) Terminal leaves (D) All leaves

Last Answer : (C) Terminal leaves

What is the sign of Molybdenum ?

Description : What is the sign of Molybdenum ?

Last Answer : Molybdenum's signal Mo.

What is the chemical sign of molybdenum?

Description : What is the chemical sign of molybdenum and what are the main properties of this substance? Maybe you can write something about the use of molybdenum?

Last Answer : The chemical sign of molybdenum Mo. The most important properties of molybdenum: Electronic structure: [Kr] 4d55s1 Atomic mass: 95.94 u 0.02 u Number: 42 Melting point: 2 623 ° CA Applications ... it is already a very little of it is enough to advantageously change the properties of the steel. 

What is molybdenum electron configuration?

Description : What is molybdenum electron configuration?

Last Answer : The ground state electron configuration for molybdenum (Mo) is [Kr] 4d5s1.

How many neutrons are in an atom of molybdenum-96 (Mo-96)?

Description : How many neutrons are in an atom of molybdenum-96 (Mo-96)?

Last Answer : 54 A+

A trace element having antioxidant function is (A) Selenium (B) Tocopherol (C) Chromium (D) Molybdenum

Description : A trace element having antioxidant function is (A) Selenium (B) Tocopherol (C) Chromium (D) Molybdenum

Last Answer : Answer : A

Molybdenum is a cofactor for (A) Xanthine oxidase (B) Aldehyde oxidase (C) Sulphite oxidase (D) All of these

Description : Molybdenum is a cofactor for (A) Xanthine oxidase (B) Aldehyde oxidase (C) Sulphite oxidase (D) All of these

Last Answer : Answer : D

Acrodermatitis enteropathica is due to defective absorption of (A) Manganese (B) Molybdenum (C) Iodine (D) Zinc

Description : Acrodermatitis enteropathica is due to defective absorption of (A) Manganese (B) Molybdenum (C) Iodine (D) Zinc

Last Answer : Answer : D

Molybdenum is a constituent of (A) Hydroxylases (B) Oxidases (C) Transaminases (D) Transferases

Description : Molybdenum is a constituent of (A) Hydroxylases (B) Oxidases (C) Transaminases (D) Transferases

Last Answer : Answer : B

In human beings molybdenum is mainly excreted in (A) Feces (B) Sweat (C) Urine (D) Tears

Description : In human beings molybdenum is mainly excreted in (A) Feces (B) Sweat (C) Urine (D) Tears

Last Answer : Answer : C

In human beings molybdenum is mainly absorbed from (A) Liver (B) Kidney (C) Intestine (D) Pancreas

Description : In human beings molybdenum is mainly absorbed from (A) Liver (B) Kidney (C) Intestine (D) Pancreas

Last Answer : Answer : C

The adequate daily dietary requirement of molybdenum for normal human adult is (A) 10–20 µg (B) 25–50 µg (C) 50–70 µg (D) 75–200 µg

Description : The adequate daily dietary requirement of molybdenum for normal human adult is (A) 10–20 µg (B) 25–50 µg (C) 50–70 µg (D) 75–200 µg

Last Answer : Answer : D

Wilson’s disease is a condition of toxicosis of (A) Iron (B) Copper (C) Chromium (D) Molybdenum

Description : Wilson’s disease is a condition of toxicosis of (A) Iron (B) Copper (C) Chromium (D) Molybdenum

Last Answer : Answer : B

In hemochromatosis, the liver is infiltrated with (A) Iron (B) Copper (C) Molybdenum (D) Fats

Description : In hemochromatosis, the liver is infiltrated with (A) Iron (B) Copper (C) Molybdenum (D) Fats

Last Answer : Answer : A

A molybdenum containing oxidase is (A) Cytochrome oxidase (B) Xanthine oxidase (C) Glucose oxidase (D) L-Amino acid oxidase

Description : A molybdenum containing oxidase is (A) Cytochrome oxidase (B) Xanthine oxidase (C) Glucose oxidase (D) L-Amino acid oxidase

Last Answer : Answer : B

Which one of the following mineral elements play an important role in biological nitrogen fixation a. Copper b. Magnesium c. Zinc d. Molybdenum

Description : Which one of the following mineral elements play an important role in biological nitrogen fixation a. Copper b. Magnesium c. Zinc d. Molybdenum

Last Answer : Ans: D

Which of the following is not a compound of calcium? (a) Gypsum (b) Marble (c) Chalk (d) Molybdenum

Description : Which of the following is not a compound of calcium? (a) Gypsum (b) Marble (c) Chalk (d) Molybdenum

Last Answer : Ans:(d)

Haemoglobin contains the metal - (1) Copper (2) Molybdenum (3) Iron (4) Magnesium

Description : Haemoglobin contains the metal - (1) Copper (2) Molybdenum (3) Iron (4) Magnesium

Last Answer : (3) Iron Explanation: Haemoglobin is an ironcontaining protein in red blood cells. It contains a haem prosthetic group that has an iron atom at its centre. When the iron is bound to oxygen, the haem ... is red in colour (oxyhameoglobin), and when it lacks oxygen (deoxygenated form) it is blue-red.

Cinnabar is an ore/mineral of – (1) Lead (2) Manganese (3) Molybdenum (4) Mercury

Description : Cinnabar is an ore/mineral of – (1) Lead (2) Manganese (3) Molybdenum (4) Mercury

Last Answer : (4) Mercury Explanation: Cinnabarrefers to the common bright scarlet to brick red form of mercuryasullide (HgS) that is the most common source ore for refining elemental mercury. It is the historic source for the brilliant red or scarlet pigment termed vermilion and associated red mercury pigments.

Catalyst used in the production of high density polythene by low pressure Ziegler process is(A) Aluminium triethyl activated with TiCl4(B) Platinum(C) Molybdenum(D) Nickel

Description : Catalyst used in the production of high density polythene by low pressure Ziegler process is (A) Aluminium triethyl activated with TiCl4 (B) Platinum (C) Molybdenum (D) Nickel

Last Answer : (A) Aluminium triethyl activated with TiCl4

Safety rods provided in nuclear reactors to guard against accidents, in case of earthquake are made of (A) High carbon steel (B) Molybdenum (C) Zircaloy (D) Boron or cadmium

Description : Safety rods provided in nuclear reactors to guard against accidents, in case of earthquake are made of (A) High carbon steel (B) Molybdenum (C) Zircaloy (D) Boron or cadmium

Last Answer : (D) Boron or cadmium

Nickel (56%) and molybdenum (17%) alloys are called (A) Monel (B) Hastelloy C (C) Inconel (D) Bronzes

Description : Nickel (56%) and molybdenum (17%) alloys are called (A) Monel (B) Hastelloy C (C) Inconel (D) Bronzes

Last Answer : (B) Hastelloy C

Which of the following alloy steels is the most suitable for making gun barrels and projectiles? (A) Tungsten steel (B) Molybdenum steel (C) Nickel-chrome steel (D) Cobalt steel

Description : Which of the following alloy steels is the most suitable for making gun barrels and projectiles? (A) Tungsten steel (B) Molybdenum steel (C) Nickel-chrome steel (D) Cobalt steel

Last Answer : (C) Nickel-chrome steel

Corrosion resistance of steel is increased by the addition of (A) Phosphorous and tungsten (B) Nickel and chromium (C) Lead and vanadium (D) Molybdenum and tungsten

Description : Corrosion resistance of steel is increased by the addition of (A) Phosphorous and tungsten (B) Nickel and chromium (C) Lead and vanadium (D) Molybdenum and tungsten

Last Answer : (B) Nickel and chromium

__________ can replace tungsten in high speed steel, (A) Chromium (B) Vanadium (C) Cobalt (D) Molybdenum

Description : __________ can replace tungsten in high speed steel, (A) Chromium (B) Vanadium (C) Cobalt (D) Molybdenum

Last Answer : (D) Molybdenum

Which of the following alloying elements is present in maximum percentage in high speed steel? (A) Molybdenum (B) Chromium (C) Tungsten (D) Vanadium

Description : Which of the following alloying elements is present in maximum percentage in high speed steel? (A) Molybdenum (B) Chromium (C) Tungsten (D) Vanadium

Last Answer : (C) Tungsten

Hypersil' is a __________ steel. (A) High speed (B) Silicon (C) Molybdenum (D) Tungsten

Description : Hypersil' is a __________ steel. (A) High speed (B) Silicon (C) Molybdenum (D) Tungsten

Last Answer : (B) Silicon

Chromel (Nichrome) is an alloy of (A) Chromium and molybdenum (B) Nickel and chromium (C) Molybdenum and nickel (D) Chromium and aluminium

Description : Chromel (Nichrome) is an alloy of (A) Chromium and molybdenum (B) Nickel and chromium (C) Molybdenum and nickel (D) Chromium and aluminium

Last Answer : (B) Nickel and chromium

Most suitable material for high pressure vessel operating at 500 atm. and 500° C is (A) Molybdenum stainless steel(B) 18/8 stainless steel(C) Mild steel(D) High silicon iron (14% Si)

Description : Most suitable material for high pressure vessel operating at 500 atm. and 500° C is (A) Molybdenum stainless steel (B) 18/8 stainless steel (C) Mild steel (D) High silicon iron (14% Si)

Last Answer : (A) Molybdenum stainless steel

Molybdenum steels containing 0.15 to 0.40% molybdenum (A) Are prone to temper brittleness (B) Are used for automobile parts like gears, axle, shaft, bearings etc. (C) Have very poor fatigue resistance

Description : Molybdenum steels containing 0.15 to 0.40% molybdenum (A) Are prone to temper brittleness (B) Are used for automobile parts like gears, axle, shaft, bearings etc. (C) Have very poor fatigue resistance

Last Answer : (B) Are used for automobile parts like gears, axle, shaft, bearings etc

Nickel and molybdenum are the basic constituents of (A) Hastelloy (B) German silver (C) Inconel (D) Solder

Description : Nickel and molybdenum are the basic constituents of (A) Hastelloy (B) German silver (C) Inconel (D) Solder

Last Answer : (A) Hastelloy