Biology, Daily QuizQuiz On Transport in plant November 5, 2020 / 0 Comments 3 Created on November 05, 2020 By Emily Smith Transport in plant 1 / 16A semipermeable membrane allows entry of solvent only both solvent and solute both solvent and selected solutes selected solutes only 2 / 16Read the given statements and select the correct option.(i) In antiport method, both molecules cross the membrane in the same direction at the same time.(ii) Aquaporins are membrane proteins which do not set up a concentration gradient.(iii) Inactive transport the movable carrier proteins are called pumps.(iv) Active transport and facilitated transport respond to protein inhibitors. (i) and (iii) are correct (ii), (iii) and (iv) are correct. (i), (ii) and (iv) are correct (i), (iii) and (iv) are correct. 3 / 16Select the incorrect statement for the given figure There is no net movement of water in cell B Surrounding solution is hypertonic in case of cell A. These experiments cannot be performed without involvement of porin proteins. More solute is present inside the cell C as compared to the surrounding solution. 4 / 16In case, the external water is pure, the diffusion pressure deficit (DPD) of a cell is represented by(OP = Osmotic potential, WP = Wall pressure) DPD = OP – WP DPD = OP + WP DPD = OP = WP DPD = (OP1 – OP2) – WP 5 / 16 Sophia kept some freshly cut flowers in a solution of coloured dye. After some time she observed the coloured dye rising up in the flower. When the stem of the flower is held up in light, coloured strands are visible. Identify the components of xylem which is conducting coloured dye up the stem. Tracheids Vessels Parenchyma Both (a) and (b) 6 / 16The cohesion force in xylem sap develops due to hydrogen bonds between adjacent water molecules high capillarity through tracheids force between tracheid wall and water molecule tension created by transpiration 7 / 16Andy placed a crystal of CuSO4 in a beaker containing water. He observed an intense blue colour around the crystal. Blue colour decreases with the increase of distance from the crystal. Which phenomenon is taking place in this experiment? Endosmosis Diffusion Active transport Exosmosis 8 / 16Read the following statements and select the correct one. Sieve tube cytoplasm cannot tolerate high concentration of solute. Tonoplast is present in sieve tubes Sieve tube cells possess granules and filaments of P-protein with ATPase activity Both (b) and (c). 9 / 16Which of the following causes bleeding in plants? Root pressure Phloem pressure Xylem pressure All of these 10 / 16 Guard cells maintain their electroneutrality by balancing K+ with malate and Cl– combining with H+ to form malic acid passing K+ inwardly decreasing the pH of the cytoplasm. 11 / 16Read the following statements and select the correct option stating which ones are true (T) and which ones are false (F).(i) CO2, pH and hormones have no effect on transpiration.(ii) Guard cells have ledges to prevent entry of water drops into stomata.(iii) Glucose helps in decreasing the osmotic concentration of guard cells.(iv) Red light has been found to be more effective than other wavelengths for opening of stomata. T F T F F F F T F T F F T T T F 12 / 16Which of the following is not a function of turgor pressure? It provides support to woody tissues like sclerenchyma. It keeps cells and their organelles stretched. It is essential in cell enlargement during growth. It keeps the leaves fully expanded. 13 / 16The number of stomata and epidermal cells in 1 mm2 leafarea of lower epidermis of the leaves of A, B, C (plants) aregiven below.Arrange the plants in increasing order of their stomatalindex and choose the correct option.Plant cellNo. of stomataNo. of epidermal cellsA40160B70250C100410 C, B, A C, A, B B, A, C A, B, C 14 / 16Read the following statements and select the incorrect one Diffusion pressure deficit is the reduction in diffusion pressure of solvent in a system over its pure state. The value of Ψw is measured in bars, pascals or atmospheres. Osmotic potential is the increase in the chemical potential of pure water due to presence of solute particles. The value of matric potential is 50-200 MPa 15 / 16Read the following statements and select the incorrect one Diffusion pressure deficit is the reduction in diffusion pressure of solvent in a system over its pure state. The value of Ψw is measured in bars, pascals or atmospheres. Osmotic potential is the increase in the chemical potential of pure water due to presence of solute particles. The value of matric potential is 50-200 MPa 16 / 16Ion channels are often gated, K+ channel in nerve conduction is voltage gated mechanical gated ligand gated both mechanical gated and ligand gated Your score isThe average score is 20% LinkedIn Facebook Twitter 0% Restart quiz biologyexpertsnote The human heart is A) Neurogenic heart B) Myogenic What does a peacock’s tail have to do with selec What are the functions of microtubules? Visit bel Load More... Follow on Instagram