Botany/Transport and Mineral Nutrition in Plants Sample Test,Sample questions

Question: In plant nutrition elements are classified as major or minor depending on

1.Their relative production in the ash obtained after burning the plants

2.The relative amounts required by the plants

3.Their availability in the soil

4.Their relative importance in plant growth


Question: Necrosis means

1.Death of tissue and decomposition

2.Yellow spots on the leaves

3.Darkening of green colour in leaves

4.All


Question: Which of the following elements is not required by plants for their normal healthy growth

1. Magnesium

2.Lead

3.Iron

4.Calcium


Question: A nutritionally wild type organism, which does not require any additional growth supplement is known as

1.Phenotype

2.Holotype

3.Prototroph

4.None


Question: Active uptake of minerals by roots mainly depends on the

1.Availability of oxygen

2.Light

3.Temperature

4.Availability of CO2


Question: An essential element is

1.Improve plant growth

2.Present in plant ash

3.Is indispensable for growth and is irreplaceable

4.Available in soil


Question: Bacteroid means

1.dead bacteria

2.living bacteria

3.A bacteria like substance

4.living bacteria but cannot divide


Question: Cooling of plants is caused by

1.Guttaion

2.Photorespiration

3.Transpiration

4.Assimilation


Question: During rainy season wooden doors are difficult to open or closure because of

1.Plasmolysis

2.Imbibition

3.Osmosis

4.Diffusion


Question: First experiments related to the method of hydroponics were done by

1.Knop

2.Sachs

3.Arnon

4.Hill


Question: How the mineral contents of the plant known

1.Calorimetric method

2.Ash analysis

3.Titrimetric method

4.All


Question: Hydroponics are

1.Growing of aquatic plants

2.Growing of floating aquatic plants

3.Growing of plants in sand

4.Growing of plants aqueous balanced nutrient


Question: Hydroponics is

1.Growing of aquatic plants

2.Soilless cultivation of plants

3.Growing off floating aquatic plants

4.Growing of plants inside water


Question: If by radiation all nitrogenase enzyme are inactivated, then there will be no

1.Conversion from ammonium to nitrate in soil

2.Conversion from nitrate to nitrite in legumes

3.Fixation of nitrogen in legumes

4.Fixation of atmospheric nitrogen


Question: In root nodules of legumes, leg-haemoglobin is important because it

1.Transports oxygen to the root nodule

2.Acts as an oxygen scavenge

3.Provides energy to the nitrogen fixing bacterium

4.Acts as a catalyst in transamination


Question: Ion can be accumulated against concentration gradient due to?

1.Active uptake

2.Mass flow

3.Passive uptake

4.Donnan equilibrium


Question: Little leaf disease is due to the deficiency of

1.Nitrogen

2.Zinc

3.Manganese

4.Molybdenum


Question: Loss of water from the stomata of leaves are known as

1.Guttation

2.Exudation

3.Transpiration

4.Evaporation


Question: Molybdenum is involved in plant metabolism in

1.Translocation of solutes

2.Tryptophan synthesis

3.ABA synthesis

4.Nitrate reduction


Question: Munch hypothesis is based on

1.Translocation of food due to TP gradient and imbibitions force

2.Translocation of food due to turgor pressure (TP) gradient

3.Translocation of food due to imbibitions force

4.None of the above


Question: Non-essential element in plant is

1.Barium

2.Calcium

3.Magnesium

4.Potassium


Question: Passive absorption of water by the root system is the result of

1.Forces created in the cells of the root

2.Increased respiratory activity in root cells

3.Tension on the cell sap due to transpiration

4.Osmotic force in the shoot system


Question: Plant absorb the element nitrogen in the form

1.nitrogen gas

2.nitrites

3.nitrates

4.nitric acid


Question: Plant ash is an indication of

1.Mineral salts absorbed by the plants

2.Only mineral salts

3.Organic matter of the plant

4.None


Question: Plant require Fe and Mg for

1.Synthesis of chlorophyll

2.Opening and closing of stomata

3.Translocation of carbohydrates

4.None of these


Question: Plasmolysis occurs due to

1.Absorption

2.Osmosis

3.Endoosmosis

4.Exosmosis


Question: Potometer works on the principle of

1.Osmotic pressure

2.Root pressure

3.Amount of water absorbed equals the amount transpired

4.potential difference between the tip of the tube and that of the plant.


Question: Stomata open at night and close during day time in

1.Mesophytes

2.Xerophytes

3.Succulents

4.Hydrophytes


Question: The disease die back of shoots is caused due to the deficiency of the following microelements

1.Chlorine

2.Copper

3.Manganese

4.Molybdenum


Question: The essential element for the synthesis of auxin is

1.Zinc

2.Sulphur

3.Potassium

4.Phosphorus


Question: The first process by which water enters into the seed coat when a seed is placed in a suitable environment for germination is

1.Osmosis

2.Active transport

3.absorption

4.Imbibition


Question: The function of leghemoglobin in the root nodules of legumes is

1.Oxygen removal

2.Inhibition of nitrogenase activity

3.Expression of nif gene

4.None


Question: The hormone which signals the closure of stomata is

1.Auxins

2.Cytokinine

3.Gibberelline

4.Abscisic acid


Question: The marine animals that kept in fresh water burst. It shows the process of

1.Exosmosis

2.Endoosmosis

3.Plasmolysis

4.Deplasmolysis


Question: The minerals involved in water-splitting reaction during photosynthesis are

1.Manganese and Chlorine

2.Magnesium Chlorine

3.Potassium and Manganese

4.Molybdenum Manganese


Question: The most widely accepted theory accepted to explain the translocation of carbohydrates in higher plants

1.Root pressure theory

2.Osmotic theory

3.Imbibition theory

4.Mass flow theory


Question: The translocation of organic solutes in sieve tube members is supported by

1.cytoplasmic streaming

2.mass flow involving a carrier and ATP

3.P proteins

4.root pressure and transpiration pull


Question: The water potential of pure water at atmospheric pressure is

1.-2.3 bar

2.+2.3 bar

3.Zero bar

4.One bar


Question: The water readily available to plants for absorption by roots is

1.Gravitational water

2.Capillary water

3.Rain water

4.Hygroscopic water


Question: Transpiration is least in

1.High atmospheric humidity

2.high wind velocity

3.good soil moisture

4.dry environment


Question: Water absorption takes place through

1.Lateral roots

2.Root cap

3.Root hairs

4.Tap root


Question: Water is lost in a liquid state in some plants through hydathodes. These hydathodes

1.Remain closed at night

2.Remain closed during day

3.Remain always open

4.Do not show any specificity in opening and closing


Question: What is the action spectrum of transpiration?

1.Orange and red

2.Green and ultraviolet

3.Blue and red

4.None of these


Question: Which element has not been proved to be essential in plants

1.Calcium

2.Zinc

3.Iron

4.Sodium


Question: Which element is required for Nodulation in Legumes?

1.Fe

2.Mn

3.Mo

4.B


Question: Which of the following bacterium brings about denitrification?

1.Pseudomonas

2.Rhizobium

3.Azotobacter

4.Nitrobacter


Question: Which of the following experiment is called physiological demonstration of osmosis?

1.Thistle funnel- whose mouth is tied with egg membrane

2.Thistle funnel- whose mouth is tied with parchment paper

3.bell jar experiment

4.potometer


Question: Which of the following helps in ascent of sap?

1.Root pressure

2.Transpiration

3.Capillarity

4.all of above


Question: Which of the following is a bacterium involved in denitrification

1.Pseudomonas

2.Azotobacter

3.Nitrosomonas

4.Nitrobacter


Question: Which of the following is a flowering plant with nodules containing filamentous nitrogen-fixing microorganism

1.Cycas revoluta

2.Casuarina equisetifolia

3.Crotalaria juncea

4.Cicer arietinum


Question: Which of the following is a rootless aquatic plant in which a portion of the leaf forms a tiny sac for trapping insects ?

1.Nepenthes

2.Drosera

3.Dionaea

4.Utricularia


Question: Which of the following is an anti-transpirant

1.PMA

2.PAN

3.IAA

4.AUG


Question: Which of the following is essential for Nitrogen Fixation by leguminous plants?

1.Chlorophyll

2.Leghaemoglobin

3.Anthocyanin

4.Phycocyanin


Question: Which of the following is necessary for biological nitrogen fixation?

1.Zinc

2.Copper

3.Manganese

4.Molybdenum


Question: Which of the following minerals activate the enzymes involved in respiration?

1.Magnesium and manganese

2.Nitrogen and phosphorus

3.Potassium and calcium

4.Sulphur and iron


Question: Which of the following plant material, is an efficient water imbibant?

1.lignin

2.agar

3.pectin

4.cellulose


Question: Which one of the following elements in plants is not remobilized ?

1.Sulphur

2.Calcium

3.Potassium

4.Phosphorus


Question: Which one of the following is a micronutrient?

1.Boron

2.Molybdenum

3.Zinc

4.All


Question: Which one of the following is used for measuring the rate of transpiration?

1.Porometer

2.Osmometer

3.Molls experiment

4.Potometer


Question: Which one of the following theories for ascent of sap was proposed by eminent Indian scientist J. C Bose?

1.Pulsation theory

2.Transpiration Pull theory

3.Root pressure theory

4.Atmospheric pressure theory


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