Transport in PLants Mock Test | NEET Botany Test Series Leave a Comment / Blog / By admin Transport in Plants - NEET (BOTANY) Best of luck 1 / 50 1. ABA inhibits Opening of stomata Closing of stomata Transpiration Both (1) & (3) 2 / 50 2. What happens to the water potential of a solution when more solute is added to it? Become more negative Become more positive Will decrease Both (1) and (3) 3 / 50 3. Osmosis is driven by Concentration of dissolved solutes in a solution Pressure gradient Temperature All of the above 4 / 50 4. Movement of solute against concentration gradient occurs in Diffusion Facilitated diffusion Active transport Passive transport 5 / 50 5. Transpiration differs from guttation in (1) Loss of water in the form of vapour Loss of water in the form of vapour Loss of water in the form of liquid Using hydathodes Forming an incrustation of salts on the leaf surface 6 / 50 6. Read the given features and choose incorrect with respect to imbibition.(A) Volume of the imbibant increases(B) Exothermic process(C) A great pressure is developed Only (A) Only (B) Only (C) None of these 7 / 50 7. Which of the following is incorrect with respect to diffusion? Slow process Occurs along concentration gradient Downhill movement Requires special membrane proteins 8 / 50 8. Pumps are involved in Passive transport Active transport Downhill transport Simple diffusion 9 / 50 9. Which of the following is not associated with ascent of sap in tall trees? Transpiration pull Cohesion and adhesion of water molecules Positive hydrostatic pressure in tracheary elements Continuity of water column 10 / 50 10. Demonstration of translocation of food by phloem is done by Munch experiment Bell jar experiment Girdling experiment Thistle funnel experiment 11 / 50 11. Select the correct option w.r.t factor(s) which increases rate of transpiration(1) Dry atmosphere(2) Low temperature(3) High concentration of salts(4) Low relative humidity(5) Blue and red light I, II, III, IV I, IV, V II, III, V I, IV only 12 / 50 12. DPD of a cell will rise when the cell is kept in Hypertonic solution Hypotonic solution Isotonic solution Pure water 13 / 50 13. Transport proteins of, can adjust the quantity and type of solutes that reach the xylem. Epidermal cells Cortical cells Pericycle cells Endodermal cells 14 / 50 14. Means of transport which is independent of a living system and do not require a membrane or protein is Diffusion Osmosis Facilitated diffusion Active transport 15 / 50 15. The uptake of water by dry seeds is Imbibation Depending on surface texture A special type of diffusion More than on option is correct 16 / 50 16. Road the following statements and choose the correct optionA. Minerals are not absorbed passively by rootsB. They are charged particles Both the statements are correct & B is the correct explanation of A Both the statements are correct but B is not the correct explanation of A Only A is correct Only B is correct 17 / 50 17. At which stage of plasmolysis, the negative turgor pressure is observed ? Limiting plasmolysis Incipient plasmolysis Evident plasmolysis Both (2) and (3) 18 / 50 18. In guttation Pure water is released Leaf margin & leaf tips are involved Water released through hydathodes More than on option is correct 19 / 50 19. In a stomatal apparatus, cellulosic microfibrils are oriented Longitudinally on subsidiary cells Radially in the cell walls of guard cells Radially and longitudinally in wall of guard cells Longitudinally on both guard cells 20 / 50 20. Symplast involves all of the following, except Endodermis Plasmodesmata Cell wall Vacuole 21 / 50 21. The movement of water from root hairs to xylom involves Epi * dermis -> Cortox -> En * do * dormis rightarrow Pericycle Endodermis→ Cortex → Pericycle →→ Xylem Cortex→ Endodermis →→ Pericycle →→ Xylem Both (1) and (2) are correct 22 / 50 22. According to mass flow hypothesis phloem translocation is(A) In mass or bulk(B) In the form of disaccharide sugar(C) Brought by living tissue(D) Based on difference in osmotic pressure All are correct All are correct excpet (A) All are incorrect except (B) All are incorrect except (B) and (D) 23 / 50 23. For a solution at atmospheric pressure, water potential (Psi_{w}) is equivalent to Psi_{p} Zero OP 's 24 / 50 24. Plant factor effecting transpiration includes Temperature Number and distribution of stomata Root-shoot ratio Both (2) & (3) 25 / 50 25. Select the incorrect statement w.r.t. transpiration C_{4} plants lose only half as much of water as C_{3} plants for the same amount of C*O_{2} fixed Short plants have a high root-shoot ratio A higher concentration of salts in the soil water also reduces the role of transpiration Potassium malate formed in the guard cells, accumulates in the cytosol 26 / 50 26. Select the incorrect statement w.r.t. transpiration C_{4} plants lose only half as much of water as C_{3} plants for the same amount of C*O_{2} fixed Short plants have a high root-shoot ratio A higher concentration of salts in the soil water also reduces the role of transpiration Potassium malate formed in the guard cells, accumulates in the cytosol 27 / 50 27. When plant cell is placed in hypertonic solution, then Cell wall is plasmolysed Protoplast is plasmolysed Cell is deplasmolysed Cell will absorb the pure water 28 / 50 28. Select the incorrect w.r.t pressure potential (Psi_{p}) : It is usually positive in plants Negative pressure potential is found in the water column in xylem Negative pressure potential in the xylem plays a major role in water transport up in the stem Pressure potential is always positive in xylem column 29 / 50 29. Which of the following is a type of cotransport ? Antiport Symport Both (1) & (2) Uniport 30 / 50 30. Root pressure is not concerned with Active hydrostatic pressure Guttation and exudation Opening of stomata Re-establish the broken water column 31 / 50 31. Read the following statements w.r.t. imbibition and select the correct option.A. It requires imbibant and imbibate.B. It depends on the difference of water potential.C. Proteins are the best imbibants followed by phycocolloids and cellulose. A, B and C are correct B and C are incorrect Only C is incorrect A and C are correct 32 / 50 32. When two molecules move across the membrane in the same direction, the movement is Uniport Antiport Symport Cotransport 33 / 50 33. When water flows into the cells and out of the cells and are in equilibrium, the cell is said to be Flaccid Turgid Plasmolysed Deplasmolysed 34 / 50 34. Girdling experiment cann't be done in sugarcane stem due to Close vascular bundles Open vascular bundles Vascular bundles arranged in ring Scattered vascular bundle 35 / 50 35. Out of following which option is not applicable for both facilitated and active transport ? Require special membrane protein Highly selective Transport saturates Uphill transport 36 / 50 36. Osmosis differs from diffusion in having Freely permeable membrane Semipermeable membrane Differentially permeable membrane Both (2) & (3) 37 / 50 37. When special proteins of membrane help to move substances across membrane without expenditure of ATP, this type of transport is Simple diffusion Facilitated diffusion Active diffusion Active transport 38 / 50 38. Osmosis is the movement of________ Solute particles from their higher concentration to lower concentration Solvent particles from their lower to higher concentration Solvent particles from their higher to lower concentration through semi-permeable membrane Solvent particles from their lower water potential to higher water potential 39 / 50 39. Numerically turgor pressure is equivalent to Osmotic pressure Solute potential Pressure potential Water potential 40 / 50 40. Aquaporins - Are extrinsic protein Are partially embedded integral protein Are transmembrane protein Are peripheral protein 41 / 50 41. Transpiration has the following purposes, except Supply water for photosynthesis Creates negative pressure for absorption and translocation of water Cools leaf surface, some times by 10-15°C Maintains flaccidity of plant cells 42 / 50 42. The humidity of rain forest is largely due to a process in plants, called Photosynthesis Transpiration Respiration Guttation 43 / 50 43. Which one is not correct for a fully turgid cell? Increased pressure potential Increased suction pressure and increased osmotic potential Decreased DPD Increased Water Potential 44 / 50 44. Passage of water from living cells to xylem channel requires accumulation of solute in xylem at the expenditure of energy and it leads to development of a positive pressure. This positive pressure is due to Osmotic pressure Root pressure Transpiration pull DPD 45 / 50 45. Membrane permeability of a membrane depends on Size of molecule passing through it Composition of membrane Nature of molecules or ions passing through it All the above 46 / 50 46. Porins are transmembrane proteins that are present in the Outer membrane of mitochondria Cristae of mitochondria Outer membrane of plastids Both (1) & (3) 47 / 50 47. Facilitated diffusion and active transport are respectively Passive and active processes Associated with the help of fixed protein of membranes and mobile carrier protein Downhill and uphill processes Both (2) & (3) 48 / 50 48. Water Channels are made up to 4 different types of aquaporins 8 different types of aquaporins 3 similar types of aqua proins 8 similar types of aquaporins 49 / 50 49. The transport proteins embedded in plasma membrane to allow diffusion of two types of molecule is called Symport transporter Co-transporter Antiport transporter All of these 50 / 50 50. Find the incorrect statement with respect to diffusion in a plant cell It is a passive process Diffusing molecules move randomly It is a fast process and is dependent on the living system It is an essential process for gaseous exchange of plants Your score isThe average score is 40% 0% Restart quiz