CBSE Questions for Class 11 Medical Biology Mineral Nutrition Quiz 6 - MCQExams.com

Which of the following is a micronutrient?
  • Nitrogen
  • Phosphorus
  • Potassium
  • Zinc
Which of the following is a micro-nutrient?
  • Copper
  • Phosphorous
  • Magnesium
  • Calcium
Nutrients which are required in large quantities are called as 
  • Macronutrients
  • Micronutrients
  • Secondary nutrients
  • None of the above
Which of the following are not in the category of micro nutrients?
  • $$Zn, Mn$$
  • $$B, Cu$$
  • $$Cl, Ni$$
  • $$K, S$$
Which of the following minerals activate the enzymes involved in respiration?
  • Nitrogen and phosphorus
  • Magnesium and manganese
  • Potassium and calcium
  • Sulphur and iron
Active transport of ions by the cell requires
  • High temperature
  • ATP
  • Alkaline pH
  • Salts
Nitrogen-fixing bacteria are important because
  • They turn nitrogen from the air into nitrogen compounds in the soil
  • They are essential for plants being able to carry out photosynthesis
  • They break up dead plants and animals in the soil
  • They release excess nitrogen from the soil into the atmosphere
Nutrient which are required in small quantities are called as
  • Macronutrients
  • Micronutrients
  • Primary nutrients
  • None of the above
Which of the following is macronutrient?
  • Iron
  • Manganese
  • Boron
  • Calcium
Which of the following nutrients affects the physiological process in the plants?
  • Carbon
  • Sulphur
  • Iron
  • All of the above
An element is called micro-essential when it: 
  • Is less important than the major essential elements
  • Is more important that the major essential elements
  • Is present in very small quantities in the soil
  • Is needed in very small quantity but is as important as major essential elements
The element which is required in largest quantities by plant is 
  • Phosphorous
  • Nitrogen
  • Calcium
  • Sulphur
Hoagland solution is used in which of the following methods?
  • Hydroponic method
  • Aeroponic method
  • Fogponic method
  • None of the above
Essential elements which are required in plants in traces only, equal or less than 0.1 mg/gm of dry matter is known as
  • Micronutrients
  • Macronutrients
  • Minerals
  • Non-mineral elements
What word describes the relationship between the plant and the nitrogen fixing bacteria?
  • Parasitic
  • Carnivorous
  • Infection
  • Mutualistic, saprophytes
Essential elements which are present in easily detectable quantities, at least 1 milligram (1000 microgram) per gram of dry matter is
  • Micronutrients
  • Macronutrients
  • Essential nutrient
  • Non essential nutrient
How is Rhizobium useful to farmers?
  • They help in nitrogen fixation in the soil.
  • They help in killing pests.
  • They make the soil airy, soft and fertile.
  • They help in pulling out of weeds.
Find the odd one out:
  • Nitrogen
  • Potassium
  • Zinc
  • Phosphorus
Which of the following is not included in micronutrients?
  • Zn and Mn
  • B and Cu
  • Cl and Ni
  • K and S
The disadvantage of hydroponic method is that it is
  • Requires large quantity of water.
  • Time consuming.
  • Expensive.
  • Harmful to plants.
Which one of the following is not an essential element for plants?
  • Iron
  • Zinc
  • Potassium
  • Iodine
Hydroponic requires
  • 1/10 of water.
  • 1/35 of water.
  • 1/55 of water.
  • 1/5 of water.
Which of the following is used in hydroponics?
  • Sand peat
  • Gravels
  • Crushed quartz
  • Both A and B
The function of leghemoglobin in the root nodules of legumes is 
  • Oxygen removal
  • Inhibition of nitrogenase activity
  • Expression of nif gene
  • Nodule differentiation
In plants, minerals
  • Help establish gradients across membranes
  • Influence water movement into cells
  • Maintain cell shape and growth
  • All of the above
Hydroponic is a subset of what type of culture?
  • Hydroculture
  • Solid medium culture
  • Xeroculture
  • Tissue culture
Hydroponic is a technique of growing
  • Submerged plants
  • Free floating aquatic plants
  • Terrestrial plants in sand
  • Terrestrial plants in water containing nutrients
Which one of the following elements in plants is not remobilized?
  • Calcium
  • Phosphorus
  • Sulphur
  • Potassium
Which of the following is a bacterium involved in denitrification?
  • Azotobacter
  • Nitrosomonas
  • Pseudomonas
  • Nitrobacter
The term hydroponic was coined by
  • Sachs
  • Gericke
  • Pristely
  • None of the above
0:0:1


Answered Not Answered Not Visited Correct : 0 Incorrect : 0

Practice Class 11 Medical Biology Quiz Questions and Answers