Water potential in leaf tissue is “positive” (near zero) during: (a) Low transpiration (b) Excessive absorption (c) Excessive transpiration (d) Gestation

Water potential in leaf tissue is “positive” (near zero) during: (a) Low transpiration (b) Excessive absorption (c) Excessive transpiration (d) Gestation
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Description : Wilting of plants occurs due to excessive : (1) Respiration (2) Guttation (3) Absorption (4) Transpiration

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Description : Transpiration differs from evaporation in: (a) Rate of water loss (b) Transpiration is a physiological process while evaporation is physical process (c) Transpiration is physical process while evaporation is physiological process (d) Frequency of water loss

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Potential energy is produced during a.Photorespiration b.Respiration c.Photosynthesis d.ATP synthesis

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Description : What is a thorn leaf ?

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The specific characters of C4 plant is: (a) Bulliform cells (b) Kranz anatomy (c) Parallel venation (d) Isobilateral leaf

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Haploid plants can be obtained from: (a) Leaf culture (b) Bud culture (c) Root culture (d) Anther culture

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What tissue present in leaves of Pinus conducts food and water laterally? (a) Transfusion tissue (b) Phloem (c) Xylem (d) Medullary rays

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In practical operation of any furnace, zero oxygen percentage or theoretical CO2 percentage in flue gas is rarely achieved, because of (A) Use of non-preheated combustion air (B) Use of pulverised solid fuels (C) Imperfect mixing of fuel & air and infiltration of air (D) Use of excessive positive draft in the furnace

Description : In practical operation of any furnace, zero oxygen percentage or theoretical CO2 percentage in flue gas is rarely achieved, because of (A) Use of non-preheated combustion air (B) Use of pulverised solid ... of fuel & air and infiltration of air (D) Use of excessive positive draft in the furnace

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Horticulture is the study that includes a) Fruits, vegetables and flowers b) All food crops c)Vegetable gardens and lawns near hotels only d)Some bush crops and apples

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Last Answer : a) Fruits, vegetables and flowers

What is the structure of sclerenchyma tissue ?

Description : What is the structure of sclerenchyma tissue ?

Last Answer : The cells of this tissue are hard , very long and have thick walls. Tissue is protoplasm -free , lignin-containing, and is specifically for mechanical work. Although protoplasm is present in the ... very thick and ligninous. Mature scleroid cells are usually dead. The cell wall is well-contained.

Consider the following statement: The ex situ conservation of genetic resources can be done through: (1) Tissue culture practices (2) Maintenance of sanctuaries (3) The establishment of germplasm banks (4) The establishment of national parks

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With reference to plant tissue culture select the matching pair: (1) Sterile triploid—banana and seedless fruit (2) Somaclonal variations—differences appearing (3) Embryoids—non-zygatic embryo produced from somatic cells (4) Pulses—belong to cruciferae

Description : With reference to plant tissue culture select the matching pair: (1) Sterile triploid—banana and seedless fruit (2) Somaclonal variations—differences appearing (3) Embryoids—non-zygatic embryo produced from somatic cells (4) Pulses—belong to cruciferae

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The process through which the amount of DNA, RNA and protein can be known at a time is called (a) Autoradiography (b) Tissue culture (c) Cellular fractioning (d) Phase contrast microscopy

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Development of Sporophyte from gametophyte tissue without fusion of gametes is: (a) Apospory (b) Apogamy (c) Apomixis (d) Parthenogenesis

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The process by which the amount of DNA, RNA and protein can be known at a time is: (a) Cell fractionation (b) Autoradiography (c) Phase-contrast microscopy (d) Tissue culture

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Hormone used in tissue culture for better growth is: (1) Auxin (2) Gibberellin (3) Cytokinin (4) Vernalin

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Mark the INCORRECT statement about agar, a gelling agent in plant tissue culture medium a. Not digested by plant enzymes b. It does not use in micro-propagation work c. It does not react with media constituents d. Remain stable at incubation temperature

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Last Answer : d. Unorganized actively dividing mass of cells maintained in cultured

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scattered vascular bundles embedded in the ground tissue with no definite arrangement is found in

Description : scattered vascular bundles embedded in the ground tissue with no definite arrangement is found in

Last Answer : scattered vascular bundles embedded in the ground tissue with no definite arrangement is found in – Stem of monocots

The tissue which is involved in development of lateral roots is

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Name the living mechanical tissue? What is its function?

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What is conjunctive tissue?

Description : What is conjunctive tissue?

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What are hydrophytes? Which type of tissue is responsible for buoyancy in hydrophytes?

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Tissue culture is a good technique to a) Cross two varieties b) Rapidly increase the size of a trees by strengthening the stem c) Eliminate virus d) Improve yield of crops

Description : Tissue culture is a good technique to a) Cross two varieties b) Rapidly increase the size of a trees by strengthening the stem c) Eliminate virus d) Improve yield of crops 

Last Answer : c) Eliminate virus 

A variety or strain produced by horticultural or agricultural techniques and not normally found in natural population is called a) Hybrid b) Tissue culture c) GMO d) Cultivar

Description : A variety or strain produced by horticultural or agricultural techniques and not normally found in natural population is called a) Hybrid b) Tissue culture c) GMO d) Cultivar

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The term water potential was proposed by: (a) Godlewski (b) Slatyer and Taylor (c) Dixon and Jolly (d) J. C. Bose

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When solute is added gradually in water which will go on decreasing? a. DPD b.OP c. SP d.Water potential

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The process of producing energy in plants is known as – (1) Absorption (2) Reduction (3) Photosynthesis (4) Transpiration

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Primary root is: (1) Positively geotropic (2) Positive hydrotropic (3) Negative geotropic (4) Negative hydrotropic

Description : Primary root is: (1) Positively geotropic (2) Positive hydrotropic (3) Negative geotropic (4) Negative hydrotropic

Last Answer : Ans. ((b))

The moisture deficit condition, results when the amount of water vapour available in the soil is not sufficient to meet the demand of potential evapo-transpiration

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If PE denotes monthly average value of potential evapo–transpiration and R stands for monthly average rainfall, the period having PE/4 greater than or equal to R, is designated as...... (A) Moist (B) Humid (C) Moderately Dry (D) Severe Drought (E) Dry

Description : If PE denotes monthly average value of potential evapo–transpiration and R stands for monthly average rainfall, the period having PE/4 greater than or equal to R, is designated as...... (A) Moist (B) Humid (C) Moderately Dry (D) Severe Drought (E) Dry

Last Answer : (C) Moderately Dry

During which stage or phase of bone healing after fracture is devitalized tissue removed and new bone reorganized into its former structural arrangement? a) Remodeling Remodeling is the final stage of fracture repair. b) Inflammation During inflammation, macrophages invade and debride the fracture area. c) Revascularization Revascularization occurs within about 5 days after the fracture. d) Reparative Callus formation occurs during the reparative stage but is disrupted by excessive motion at the fracture site.

Description : During which stage or phase of bone healing after fracture is devitalized tissue removed and new bone reorganized into its former structural arrangement? a) Remodeling Remodeling is the final stage of ... occurs during the reparative stage but is disrupted by excessive motion at the fracture site.

Last Answer : a) Remodeling Remodeling is the final stage of fracture repair.

A low branch with a node is bent down and covered with soil in a) Marcotting b) Layering c)Cutting d) Budding

Description : A low branch with a node is bent down and covered with soil in a) Marcotting b) Layering c)Cutting d) Budding

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Gravitational potential is always A. infinite B. zero C. positive D. negative

Description : Gravitational potential is always A. infinite B. zero C. positive D. negative

Last Answer : negative

Gravitational potential is always A. positive B. negative C. zero D. infinity

Description : Gravitational potential is always A. positive B. negative C. zero D. infinity

Last Answer : negative

The potential taken between two points across a resistor will be a) Positive b) Negative c) Zero d) Infinity

Description : The potential taken between two points across a resistor will be a) Positive b) Negative c) Zero d) Infinity

Last Answer : b) Negative