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

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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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