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

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

In which of the following all three are macronutrients? (a) Molybdenum, magnesium, manganese (b) Nitrogen, nickel, phosphorus (c) Boron, zinc, manganese (d) Iron, copper, molybdenum

Description : In which of the following all three are macronutrients? (a) Molybdenum, magnesium, manganese (b) Nitrogen, nickel, phosphorus (c) Boron, zinc, manganese (d) Iron, copper, molybdenum

Last Answer : (d) Iron, copper, molybdenum

Minerals known to be required in large amounts for plant growth include (a) potassium, phosphorus, selenium, boron (b) magnesium, sulphur, iron, zinc (c) phosphorus, potassium, sulphur, calcium (d) calcium, magnesium, manganese, copper.

Description : Minerals known to be required in large amounts for plant growth include (a) potassium, phosphorus, selenium, boron (b) magnesium, sulphur, iron, zinc (c) phosphorus, potassium, sulphur, calcium (d) calcium, magnesium, manganese, copper.

Last Answer : (c) phosphorus, potassium, sulphur, calcium

Which of the following elements plays an important role in biological nitrogen fixation? (a) Copper (b) Molybdenum (c) Zinc (d) Manganese

Description : Which of the following elements plays an important role in biological nitrogen fixation? (a) Copper (b) Molybdenum (c) Zinc (d) Manganese

Last Answer : b) Molybdenum

Match the following concerning essential elements and their functions in plants. Column-I Column-II (A) Iron (i) Photolysis of water (B) Zinc (ii) Pollen germination (C) Boron (iii) Required for chlorophyll biosynthesis (D) Manganese (iv) IAA biosynthesis

Description : Match the following concerning essential elements and their functions in plants. Column-I Column-II (A) Iron (i) Photolysis of water (B) Zinc (ii) Pollen germination (C) Boron (iii) Required for chlorophyll biosynthesis (D) Manganese (iv) IAA biosynthesis

Last Answer : (c) (iii) (iv) (ii) (i)

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

An element playing important role in nitrogen fixation is (a) molybdenum (b) copper (c) manganese (d) zinc

Description : An element playing important role in nitrogen fixation is (a) molybdenum (b) copper (c) manganese (d) zinc

Last Answer : (a) Molybdenum

The oxygen evolved during photosynthesis, comes from water molecules. Which one of the following pairs of elements is involved in this reaction?(a) Magnesium and Molybdenum (b) Magnesium and Chlorine (c) Manganese and Chlorine (d) Manganese and Potassium

Description : The oxygen evolved during photosynthesis, comes from water molecules. Which one of the following pairs of elements is involved in this reaction? (a) Magnesium and Molybdenum (b) Magnesium and Chlorine (c) Manganese and Chlorine (d) Manganese and Potassium

Last Answer : (c) Manganese and Chlorine

Which one of the following is essential for photolysis of water? (a) Manganese (b) Zinc (c) Copper (d) Boron

Description : Which one of the following is essential for photolysis of water? (a) Manganese (b) Zinc (c) Copper (d) Boron

Last Answer : (a) Manganese

Alloying elements present in Haynes stellite, which has superior performance than high speed steel, are: (A) Nickel, cobalt & chromium (B) Tungsten, chromium & cobalt (C) Manganese, chromium & cobalt (D) Tungsten, molybdenum & nickel

Description : Alloying elements present in Haynes stellite, which has superior performance than high speed steel, are: (A) Nickel, cobalt & chromium (B) Tungsten, chromium & cobalt (C) Manganese, chromium & cobalt (D) Tungsten, molybdenum & nickel

Last Answer : Option B

Which of the following elements is not essential element of plants but proves to be beneficial for some plants? a) Boron b) Sodium c) Iodine d) Copper

Description : Which of the following elements is not essential element of plants but proves to be beneficial for some plants? a) Boron b) Sodium c) Iodine d) Copper

Last Answer : b) Sodium

Which of the following elements is not essential element of plants but proves to be beneficial for some plants?a) Boron b) Sodium c) Iodine d) Copper

Description : Which of the following elements is not essential element of plants but proves to be beneficial for some plants?a) Boron b) Sodium c) Iodine d) Copper

Last Answer : b) Sodium

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

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

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

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.

Which of the following is not a principal alloying element for the structural steel? (A) Molybdenum (B) Nickel (C) Manganese (D) Chromium

Description : Which of the following is not a principal alloying element for the structural steel? (A) Molybdenum (B) Nickel (C) Manganese (D) Chromium

Last Answer : (A) Molybdenum

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 : Mercury

All of the following alloying elements of steel increases hardness but sacrifice ductility, except (A) Nickel (B) Vanadium (C) Molybdenum (D) Chromium

Description : All of the following alloying elements of steel increases hardness but sacrifice ductility, except (A) Nickel (B) Vanadium (C) Molybdenum (D) Chromium

Last Answer : (A) Nickel

Asbestos is formed of : (1) Calcium and Magnesium (2) Copper, Zinc and Manganese (3) Lead and Iron (4) Calcium and Zinc

Description : Asbestos is formed of : (1) Calcium and Magnesium (2) Copper, Zinc and Manganese (3) Lead and Iron (4) Calcium and Zinc

Last Answer : (1) Calcium and Magnesium Explanation: Pure and simple, asbestos is a group of naturally occurring minerals. It is composed of calcium and magnesium silicate. Asbestos occurs as veins in rocks and is mined from the ground, similar to coal.

The two sub-units of ribosome remain united at a critical ion level of (a) magnesium (b) calcium (c) copper (d) manganese.

Description : The two sub-units of ribosome remain united at a critical ion level of (a) magnesium (b) calcium (c) copper (d) manganese.

Last Answer : (b) calcium

The two sub-units of ribosome remain united at a critical ion level of (a) magnesium (b) calcium (c) copper (d) manganese.

Description : The two sub-units of ribosome remain united at a critical ion level of (a) magnesium (b) calcium (c) copper (d) manganese.

Last Answer : b) calcium

The two sub-units of ribosome remain united at a critical ion level of (a) magnesium (b) calcium (c) copper (d) manganese

Description : The two sub-units of ribosome remain united at a critical ion level of (a) magnesium (b) calcium (c) copper (d) manganese

Last Answer : magnesium

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Description : Asbestos is formed of : (1) Calcium and Magnesium (2) Copper, Zinc and Manganese (3) Lead and Iron (4) Calcium and Zinc

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Best defined function of manganese in green plants is (a) photolysis of water (b) Calvin cycle (c) nitrogen fixation (d) water absorption.

Description : Best defined function of manganese in green plants is (a) photolysis of water (b) Calvin cycle (c) nitrogen fixation (d) water absorption.

Last Answer : (a) photolysis of water

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Description : Best defined function of Manganese in green plants is (1) Water absorption (2) Photolysis of water (3) Calving cycle (4) Nitrogen fixation

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Explain the effects of following chemical elements on iron. i) Copper ii) Phosphorus iii) Manganese

Description : Explain the effects of following chemical elements on iron. i) Copper ii) Phosphorus iii) Manganese

Last Answer : Effect on iron:  i) Copper: it improves the resistance to atmospheric corrosion. It strengthens steel. It may be added to improve formability. It improves pains adhesion  ii) ... Manganese:it increase tensile strength, abrasion resistance, hardenability and toughness . it decrease weldability. 

Which of the following nutrient is involved in reproduction in plants and germination of pollen grains ? a. Boron b. Calcium c. Potassium d. Sulphur

Description : Which of the following nutrient is involved in reproduction in plants and germination of pollen grains ? a. Boron b. Calcium c. Potassium d. Sulphur

Last Answer : a. Boron

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Last Answer : (1) Nitrogen, Phosphorus and Potassium Explanation: Nitrogen (N), Phosphorus (P) and Potassium (K) are considered as the three essential or primary nutrients for plants. Together they make up ... need small quantities of iron, manganese, zinc, copper, boron and molybdenum, known as trace elements

The elements known as primary nutrients for plants (1) Nitrogen, Phosphorus and Potassium (2) Nitrogen, Oxygen and Silicon (3) Potassium, Boron and Nitrogen (4) Nitrogen, Phosphorus and Iron

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Last Answer : Nitrogen, Phosphorus and Potassium

Plants grown in acidic soil are deficient in_____ a. Calcium and Manganese b. Magnesium and Calcium c. Iron and Manganese d. Aluminium and Iron

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Last Answer : b. Magnesium and Calcium

Plants grown in acidic soil are deficient in_____ a. Calcium and Manganese b. Magnesium and Calcium c. Iron and Manganese d. Aluminium and Iron

Description : Plants grown in acidic soil are deficient in_____ a. Calcium and Manganese b. Magnesium and Calcium c. Iron and Manganese d. Aluminium and Iron

Last Answer : b. Magnesium and Calcium

Absorption of calcium decreases if there is high concentration in the diet of (A) Copper (B) Sodium (C) Magnesium (D) Cadmium

Description : Absorption of calcium decreases if there is high concentration in the diet of (A) Copper (B) Sodium (C) Magnesium (D) Cadmium

Last Answer : Answer : C

A control rod (A) Should have small absorption cross-section (B) Is generally made of boron, hafnium or cadmium (C) Should have large absorption cross-section (D) Both (B) and (C)

Description : A control rod (A) Should have small absorption cross-section (B) Is generally made of boron, hafnium or cadmium (C) Should have large absorption cross-section (D) Both (B) and (C)

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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)

Characteristics of Vitamin D and its metabolites include which one of the following? (a) Act to decrease serum levels of calcium (b) Activation of their Vitamin D receptors increases cellular CAMP (c) Calcitriol is the major derivative responsible for increasing intestinal absorption of phosphate (d) Metabolites of Vitamin D increase renal excretion of calcium (e) Vitamin D deficiency results in Pager’s disease

Description : Characteristics of Vitamin D and its metabolites include which one of the following? (a) Act to decrease serum levels of calcium (b) Activation of their Vitamin D receptors increases cellular CAMP ... Vitamin D increase renal excretion of calcium (e) Vitamin D deficiency results in Pager's disease

Last Answer : Ans: C

The following are true about calcium regulating hormones: a. calcitonin increases the plasma calcium concentration b. vitamin D is produced in the skin c. vitamin D is metabolized to its active form in the liver and kidney. d. vitamin D increases calcium absorption from the gut

Description : The following are true about calcium regulating hormones: a. calcitonin increases the plasma calcium concentration b. vitamin D is produced in the skin c. vitamin D is metabolized to its active form in the liver and kidney. d. vitamin D increases calcium absorption from the gut

Last Answer : vitamin D increases calcium absorption from the gut

The following are true about parathyroid hormone a. it is an 84 amino acid peptide hormone b. it increases calcium absorption from the gastrointestinal tract c. it acts on a cell surface receptor that increases intracellular cyclic AMP d. all above

Description : The following are true about parathyroid hormone a. it is an 84 amino acid peptide hormone b. it increases calcium absorption from the gastrointestinal tract c. it acts on a cell surface receptor that increases intracellular cyclic AMP d. all above

Last Answer : all above

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

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.

Monel metal is an alloy of (A) Molybdenum and nickel (B) Nickel and copper (C) Molybdenum and aluminium (D) Molybdenum and zinc

Description : Monel metal is an alloy of (A) Molybdenum and nickel (B) Nickel and copper (C) Molybdenum and aluminium (D) Molybdenum and zinc

Last Answer : (B) Nickel and copper

The 'bomb' in the bomb calorimeter is made of (A) Molybdenum stainless steel(B) Mild steel(C) High silicon iron (14% Si)(D) Copper

Description : The 'bomb' in the bomb calorimeter is made of (A) Molybdenum stainless steel (B) Mild steel (C) High silicon iron (14% Si) (D) Copper

Last Answer : (A) Molybdenum stainless steel

Hastelloy comprises of (A) Copper and tin (B) Copper and nickel (C) Molybdenum and nickel (D) Lead and tin

Description : Hastelloy comprises of (A) Copper and tin (B) Copper and nickel (C) Molybdenum and nickel (D) Lead and tin

Last Answer : (C) Molybdenum and nickel

Nickel base alloys with __________ are known as monel metal. (A) Zinc (B) Tin (C) Copper (D) Molybdenum

Description : Nickel base alloys with __________ are known as monel metal. (A) Zinc (B) Tin (C) Copper (D) Molybdenum

Last Answer : (C) Copper

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 : Iron

The main constituent of carborundum is __________ carbide. (A) Calcium (B) Silicon (C) Boron (D) Aluminium

Description : The main constituent of carborundum is __________ carbide. (A) Calcium (B) Silicon (C) Boron (D) Aluminium

Last Answer : (B) Silicon

Human bone does not contain-----? A. Calcium B. Chondroitin sulfate C. Boron (Answer) D. phosphate

Description : Human bone does not contain-----? A. Calcium B. Chondroitin sulfate C. Boron (Answer) D. phosphate

Last Answer : C. Boron (Answer)

In cabbage, cauliflower and broccoli, hollow stems with darkened interiors are most often caused by? (Agriculture MCQ) [a] Calcium deficiency [b] Chilling temperatures [c] Boron deficiency [d] Magnesium deficiency [e] Zinc deficiency

Description : In cabbage, cauliflower and broccoli, hollow stems with darkened interiors are most often caused by? (Agriculture MCQ) [a] Calcium deficiency [b] Chilling temperatures [c] Boron deficiency [d] Magnesium deficiency [e] Zinc deficiency

Last Answer : [c] Boron deficiency

The deficiency of calcium and boron are found on — a. Old leaves b. New leaves c. Terminal leaves d. Old and new leaves

Description : The deficiency of calcium and boron are found on — a. Old leaves b. New leaves c. Terminal leaves d. Old and new leaves

Last Answer : c. Terminal leaves