Description : $ "Transpiration pull Theory" was proposed by Dixon and Joly . ! Loss of water droplets from hydathodes is called Guttation.
Last Answer : $ "Transpiration pull Theory" was proposed by Dixon and Joly . ! Loss of water droplets from hydathodes is ... wrong D. If both As and R are wrong.
Description : The shade of a tree is cooler than the shade of a roof due to: (a) Respiration (b) Photosynthesis (c) Transpiration (d) Guttation
Last Answer : Ans. ((c))
Description : Maximum loss of water from the plants occurs due to a. Transpiration b. Evaporation c. Guttation d. Respiration
Last Answer : a. Transpiration
Description : Main function of lenticel is (a) transpiration (b) guttation (c) gaseous exchange (d) bleeding
Last Answer : (c) gaseous exchange
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
Last Answer : Ans. ((b))
Description : What is guttation?
Last Answer : Ans: it is loss of water in the form liquid through hydathodes.
Description : What is the difference between transpiration and guttation? -Biology
Last Answer : Transpiration and guttation are the two important process of removal of excess water from the plants. However, the two processes are different from each other. Transpiration is the removal of water ... loss of water from the plants. These were a few difference between transpiration and guttation.
Description : Differentiate between Guttation and Transpiration. -Biology
Last Answer : answer:
Description : What is difference between the processes of transpiration and guttation?
Last Answer : During transpiration water is removed in the form of water vapours and during guttation water is removed in the form of water droplets.
Description : Guard cells help in (a) transpiration (b) guttation (c) fighting against infection (d) protection against grazing.
Last Answer : (a) transpiration
Description : Guttation is the result of (a) diffusion (b) transpiration (c) osmosis (d) root pressure.
Last Answer : (d) root pressure.
Description : Guttation is mainly due to (a) root pressure (b) osmosis (c) transpiration (d) imbibition.
Last Answer : (a) root pressure
Description : Wilting of plants occurs due to excessive : (1) Respiration (2) Guttation (3) Absorption (4) Transpiration
Last Answer : Transpiration
Description : Water potential in leaf tissue is “positive” (near zero) during: (a) Low transpiration (b) Excessive absorption (c) Excessive transpiration (d) Gestation
Last Answer : Ans. ((d))
Description : Select the correct statement: (1) Lenticel is the exit route for transpiration (2) The action spectra of transpiration is blue and red (3) Transpiration helps the plant to remain cool (4) Transpiration can be measured by photometer
Description : The hormone reducing transpiration rate by inducing stomatal closure is: (a) ABA (b) Ethylene (c) Cytokipin (d) Auxin
Last Answer : Ans. ((a))
Description : What is the law of evaporation of water from plant cells ?
Last Answer : Perspiration is the process by which water evaporates from a plant cell.
Description : Excess amount of absorbed water by plants is liberated out by – (1) Evaporation (2) Osmosis (3) Diffusion (4) Transpiration
Last Answer : (4) Transpiration Explanation: Water vapour transpires constantly through pores (stomata) in the surface of plant's leaves.
Description : In freeze- drying, water is removed from the product by a. Evaporation b. Sublimation c. Transpiration d. None of these
Last Answer : b. Sublimation
Description : The loss of water by plants in the form of vapor i called: a) evaporation b) transpiration c) evapotranspiration d) vaporization
Last Answer : ANSWER: C -- evapotranspiration
Description : Excess amount of absorbed water by plants is liberated out by : (1) Evaporation (2) Osmosis (3) Diffusion (4) Transpiration
Description : The loss of water (contains salts and minerals) through hydathodes in liquid form during night and regulated by root pressure
Last Answer : Ans. Guttation
Description : Differentiate between Transpiration and Evaporation. -Biology
Description : Mulches are mainly used to reduce a. Transpiration b. Evaporation c. Evapotranspiration d. All of above
Last Answer : All of above
Description : Consumptive use of a crop during growth, is the amount of (A) Interception (B) Transpiration (C) Evaporation (D) All the above
Last Answer : Answer: Option D
Description : Interception losses are due to (i) Evaporation (ii) Transpiration (iii) Stream flow The correct answer is (A) Only (i) (B) (i) and (ii) (C) (ii) and (iii) (D) (i), (ii) and (iii)
Last Answer : Answer: Option A
Description : Phytometer method is generally used for the measurement of (A) Interception (B) Evaporation (C) Transpiration (D) None of these
Last Answer : Answer: Option C
Description : Consider the following statements: 1. Over the oceans there is more evaporation than precipitation. 2. On land it is more precipitation than evapo-transpiration. Which of these statements are correct? (a) Both 1 & 2 (b) Neither 1 nor 2 (c) 1 only (d) 2 only
Last Answer : (a) Both 1 & 2
Description : The degree of aridness of a geographic region is generally defined as the ratio of precipitation to: w) condensation x) evaporation y) transpiration z) snowpack depth
Last Answer : ANSWER: X -- EVAPORATION
Description : Guttation occurs through specialised pores known as..
Last Answer : Hydathodes
Description : Name the tiny pores present on the surface of leaves in plants. (1) Pits (2) Stomata (3) Trichomes (4) Hydathodes
Last Answer : (2) Stomata Explanation: Stomata are pores in the surface of the leaf. The pore is surrounded by two guard cells. When these two guard cells take up water, they bend and open up the pore between them.
Last Answer : (2) Stomata Explanation: Stomata are tiny openings or pores in plant tissue that allow for gas exchange. Stomata are typically found in plant leaves but can also be found in some stems.
Last Answer : Stomata
Description : 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
Description : How do plants absorb water through root hairs ?
Last Answer : Answer : Plants absorb water through unicellular root hairs.
Description : What is the main cause of guttation in plants? -Biology
Description : How does guttation occur? -Biology
Description : How to stop guttation. -Biology
Description : The process guttation is a result of
Last Answer : Root pressure
Description : Guttation is not favoured under (a) Low humidity (b) High humidity (c) Low root pressure (d) High humidity and low root pressure
Last Answer : (c) Low root pressure
Description : What does Patal propagate through ?
Last Answer : Patal propagates through roots.
Description : Which of the following propagates through the root ?
Last Answer : Patal propagated through roots.
Description : 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
Description : Sexual reproduction in Rhizopus occurs through: (a) Gametangial contact (b) Gametangial copulation (c) Planogametic copulation (d) Spermatogamy
Description : Select the correct statement: (a) Legumes are incapable of fixing nitrogen (b) Legumes fix nitrogen through bacteria living in fruits root (c) Legumes fix nitrogen only by bacteria present in nodules (d) None of the above
Last Answer : Ans. (c)
Description : Pollination through the agency of bats is called as
Last Answer : Pollination through the agency of bats is called as – Chieropterophily
Description : Which of the following is known as a urine factory ?
Last Answer : It is called as a tree making factory.
Description : 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
Description : Various fungi are known to accumulate considerable quantities of divalent metals, e.g. (a) Cd (b) Zn (d) All of these (c) Pb
Description : A plant having two types of haploid structures in its life cycle is known as: (a) Haplobiontic (b) Diplobiontic (c) Haplontic (d) Diplontic