A few drops of sap were collected by cutting across a
plant stem by a suitable method. The sap was tested
chemically. Which one of the following test results
indicates that it is phloem sap?
(a) Acidic
(b) Alkaline
(c) Low refractive index
(d) Absence of sugar

1 Answer

Answer :

(b) Alkaline

Related questions

Description : Excessive use of chemical fertilisers causes shrivelling of the roots and wilting of the plant, because the (A) Osmotic pressure of the soil water becomes less than that of the plant sap (B) Soil ... pressure of the soil water becomes higher than that of the plant sap (D) Soil becomes too acidic

Last Answer : (C) Osmotic pressure of the soil water becomes higher than that of the plant sa

Description : Which of the following statements about phloem transport is correct? (1) phloem transport occurs unidirectionally (2) gravity influences phloem transport (3) Ca+ is the most abundantcation in phloem sap (4) sugar is transported in phloem as nonreducing sugar

Last Answer : (4) sugar is transported in phloem as nonreducing sugar Explanation: According to most textbooks, only non-reducing carbohydrate species such as sucrose, sugar alcohols, and raffinose family ... probably reflects packaging of carbohydrate in a chemical form which protects it from being metabolized.

Description : Which of the following statements about phloem transport is correct? (1) phloem transport occurs unidirectionally (2) gravity influences phloem transport (3) Ca+ is the most abundantcation in phloem sap (4) sugar is transported in phloem as non-reducing sugar

Last Answer : sugar is transported in phloem as non-reducing sugar

Description : Pick up the correct statement from the following: A. pH value indicates acidity and alkalinity of sewage B. In acidic sewage, the pH value is less than 7 C. In alkaline sewage, the pH value is more than 7 D. All the above

Last Answer : ANS: D

Description : Wrought iron is a suitable material of construction for handling __________ solutions (A) Dilute acidic (B) Concentrated acidic (C) Alkalis & alkaline (D) None of these

Last Answer : (C) Alkalis & alkaline

Description : Wrought iron is a suitable material of construction for handling __________ solutions. (A) Dilute acidic (B) Concentrated acidic (C) Alkalis & alkaline (D) None of these

Last Answer : (C) Alkalis & alkaline

Description : what kind of soil is treated with gypsum to make it suitable for cropping---? A. Alkaline (Answer) B. Acidic C. Waterlogged D. Soil with excessive clay content

Last Answer : A. Alkaline (Answer)

Description : What kind of soil is treated with gypsum to make it suitable for cropping? (1) Alkaline (2) Acidic (3) Water-logged (4) Soil with excessive clay content

Last Answer : Alkaline

Description : What does phloem sap contain? -Biology

Last Answer : answer:

Description : Ascent of sap in plants takes place through – (1) Pith (2) Phloem (3) Cambium (4) Xylem

Last Answer : (4) Xylem Explanation: The ascent of sap in the xylem tissue of plants is the upward movement of water from the root to the crown. Xylem is a complex tissue consisting of living and ... cells in xylem are typically nonliving and include, in various groups of plants, vessels members and tracheids.

Description : Ascent of sap in plants takes place through (1) Pith (2) Phloem (3) Cambium (4) Xylem

Last Answer : Xylem

Description : It is a graphical representation of the magnitude of the refractive index across the fiber. ∙ A. mode ∙ B. index profile ∙ C. numerical aperture ∙ D. refractive index

Last Answer : B. index profile

Description : How do you Find the amount of sap the maple syrup producer would have collected from each tree if the total amount ( 5 gallons ) was redistributed equally among the trees?

Last Answer : i need the answer.

Description : In testing for mobility, which of the following statement is true: a.Heavy pressure must sometimes be used to test mobility. b.Only lateral mobility is significant in diagnosis and ... weakened. d.During the periodontal examination each tooth should be tested individually for hyper mobility.

Last Answer : d.During the periodontal examination each tooth should be tested individually for hyper mobility.

Description : In testing for mobility, which of the following statement is true:** M07 A. Heavy pressure must sometimes be used to test mobility B. Only lateral mobility is significant in ... examination each tooth should be tested individually for hyper mobility E. Reliance on radiograph is essential

Last Answer : D. During the periodontal examination each tooth should be tested individually for hyper mobility

Description : Mention the essential material (chemicals) to prepare soap in the laboratory. Describe in brief the test of determining the nature (acidic/alkaline) of the reaction mixture of saponification reaction. -Science

Last Answer : Raw Materials Required For preparation of soap in laboratory are :Vegetable oilSodium HydroxideCommom salt Test to determine the nature of reaction mixture: When a red litmus paper is dipped in the ... colour to blue. Hence, the reaction mixture of the saponification reaction is basic in nature.

Description : Crude oil is sometimes termed sweet because it is – (1) sweet in taste due to dissolved sugars (2) mildly sweet due to low sulphur content (3) less acidic (4) less alkaline

Last Answer : (2) mildly sweet due to low sulphur content Explanation: Crude oil is sometimes termed sweet amount of hydrogen sulphide and Carbon dioxide.

Description : Crude oil is sometimes termed sweet because it is : (1) sweet in taste due to dissolved sugars (2) mildly sweet due to low sulphur content (3) less acidic (4) less alkaline

Last Answer : mildly sweet due to low sulphur content

Description : The transverse section of a plant shows following anatomical features : (i) Large number of scattered vascular bundles surrounded by bundle sheath (ii) Large conspicuous parenchymatous ground ... (a) Monocotyledonous stem (b) Monocotyledonous root (c) Dicotyledonous stem (d) Dicotyledonous root

Last Answer : (a) Monocotyledonous stem

Description : Which one increases in the absence of light? (a) Uptake of minerals (b) Uptake of water (c) Elongation of internodes (d) Ascent of sap

Last Answer : (c) Elongation of internodes

Description : Pick up the most favourable condition for the rapid growth of fungus for dry rot from the following: (A) Absence of sun light (B) Dampness (C) Presence of sap (D) All the above

Last Answer : Answer: Option D

Description : In Bt cotton, the Bt toxin present in plant tissue as protoxin is converted into active toxin due to (a) action of gut microorganisms (b) presence of conversion factors in insect gut (c) alkaline pH of the insect gut (d) acidic pH of the insect gut.

Last Answer : (c) alkaline pH of the insect gut

Description : In testing a three-phase delta winding for an open circuit using a megohmmeter, you must ______________. A. test each phase with all connections intact B. measure the voltage across the open ... groups to avoid short circuiting D. open the delta-connections to avoid shunting the phase being tested

Last Answer : Answer: D

Description : Maintenance of alkaline batteries should include _________. A. checking the electrolyte weekly using a hydrometer B. replacing the electrolyte every 5 years C. trickle charging D. replacment when the volts per cell drops below 1.8 VDC

Last Answer : Answer: C

Description : Cutting is not suitable for a) Lime b) Sugar-cane c) Oleander d) Tapioca

Last Answer : a) Lime

Description : Read the different components from (i) to (iv) in the list given below and tell the correct order of the components with reference to their arrangement from outer side to inner side in a woody dicot stem. (i) Secondary cortex (ii) Wood ... ) (c) (iii), (iv), (ii), (i) (d) (i), (ii), (iv), (iii).

Last Answer : (a) (iv), (i), (iii), (ii)

Description : Secondary xylem and phloem in dicot stem are produced by (a) apical meristems (b) vascular cambium (c) phellogen (d) axillary meristems

Last Answer : (b) vascular cambium

Description : You are given a fairly old piece of dicot stem and a dicot root. Which of the following anatomical structures will you use to distinguish between the two? (a) Secondary xylem (b) Secondary phloem (c) Protoxylem (d) Cortical cells

Last Answer : (c) Protoxylem

Description : Secondary xylem and phloem in dicot stem are produced by (1) Apical meristems (2) Vascular cambium (3) Phellogen (4) Axillary meristems

Last Answer : (2) Vascular cambium

Description : What type of soil is good for hydrangeas? Should the soil be more acidic or alkaline?

Last Answer : Need Answer

Description : does veronica prefer a acidic soil or alkaline?

Last Answer : alkaline ph 7.0

Description : Which of the following soil is most suited for tea plantation ? [UP PCS 2002] (a) acidic (b) alkaline (c) alluvial (d) regur

Last Answer : Ans: (a)

Description : Riboflavin is heat stable in (A) Acidic medium (B) Alkaline medium (C) Neutral medium (D) Both (A) and (C)

Last Answer : Answer : D

Description : Thiamin is heat stable in (A) Acidic medium (B) Alkaline medium (C) Both (A) and (B) (D) None of these

Last Answer : Answer : A

Description : The amino acid exist as Zwitter ions when they are in (A) solid state (B) acidic solution (C) alkaline solution (D) neutral solution

Last Answer : Answer : D

Description : The poison of honey bee is : (1) Acidic (2) Alkaline (3) Saltish (4) Protein

Last Answer : (1) Acidic Explanation: A bee sting is strictly a sting from a bee (honey bee, bumblebee, sweat bee, etc.). In the vernacular it can mean a sting of a bee, wasp, hornet, or yellow ... deep into the tissues, where a topically applied alkali is unable to reach, so neutralization is unlikely to occur.

Description : Gypsum is used for improvement of: (1) Alkaline soils (2) Saline soils (3) (3) Podsols (4) (4) Acidic soils

Last Answer : (2) Saline soils Explanatioqn: Gypsum is calcium sulfate which is essential to the sustainability of most irrigated soils. Irrigated land eventually leads to sodieity and salinity unless extreme care is ... improves sodic (saline) soils by removing sodium from the soil and replacing it with calcium.

Description : Bee sting contains - (1) An acidic liquid (2) asalt solution (3) an alkaline liquid (4) acorrosive liquid

Last Answer : (1) An acidic liquid Explanation: A bee sting is a sting from a bee (honey bee, bumblebee, sweat bee, etc.). Bee stings are acidic. So its effects can be neutralized with bicarbonate of soda or alkali and this reaction reduces the pain.

Description : Drinking soda is – (1) Alkaline (2) Acidic (3) Neutral (4) Oxidant

Last Answer : (2) Acidic Explanation: A soft drink, coke, soda pop, fizzy drink, tonic, .seltzer, mineral, sparkling water or carbonated beverage) is a beverage that typically contains water (often, but not ... other ingredients. Soft drinks are called "soft" in contrast to "hard drinks" (alcoholic beverages).

Description : Fresh sewage is generally A. Alkaline B. Acidic C. Highly decomposed D. A source of objectionable odour

Last Answer : ANS: A

Description : If the pH value of sewage is 7 A. It is acidic B. It is alkaline C. It is neutral D. None of these

Last Answer : ANS: C

Description : Detergents are _basically-Alkaline/ Acidic/Neutral?

Last Answer : Neutral (Detergents are the salts of strong acid and strong base. Hence their solution will be neutral)

Description : The process of mixing up of salt and water resulting to form an acidic or alkaline solution known as?

Last Answer : Hydrolysis

Description : Light water' used as a coolant in nuclear reactor is nothing but (A) Ordinary water (B) Mildly acidic (pH = 6) water (C) Mildly alkaline (pH = 8) water (D) None of these

Last Answer : (A) Ordinary water

Description : What triggers activation of protoxin to active toxin of Bacillus thuringiensis in bollworm? (a) Acidic pH of stomach (b) Body temperature (c) Moist surface of midgut (d) Alkaline pH of gut

Last Answer : (d) Alkaline pH of gut

Description : Honey is (a) alkaline (b) basic after some days (c) acidic (d) neutral

Last Answer : (c) acidic

Description : Most house plants, except cacti, prefer a highly organic and a. Neutral growing medium b. Alkaline growing medium c. Acidic growing medium d. None of above

Last Answer : Acidic growing medium

Description : Which type of soil is found near the canal banks ?(A) Acidic and alkaline (B) Acidic (C) Alkaline (D) None of these

Last Answer : (C) Alkaline

Description : Fresh sewage is __________ in nature. (A) Acidic (B) Neutral (C) Alkaline (D) Highly acidic

Last Answer : (C) Alkaline

Description : Rocks containing more than 65 % Sio2 are a. Neutral b. Acidic c. Alkaline d. Calcareous

Last Answer : b. Acidic