EBK BIOLOGY
11th Edition
ISBN: 8220102797352
Author: Raven
Publisher: YUZU
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Textbook Question
Chapter 37, Problem 4A
If you were able to remove the aquaporins from cell membranes, which of the following would be the likely consequence?
a. Water would no longer move across membranes.
b. Plants would no longer be able to control the direction of water movement across membranes.
c. The potassium symport would no longer function.
d. Turgor pressor would increase.
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Students have asked these similar questions
(1)
a. The process responsible for absorption of water by root hair of plants is :
a. Osmosis
b. Active transport
C.
Diffusion
b. The reason for my answer is because :
a. Concentration of cell sap is lower than that of soil water
b. Concentration of cell sap is higher than that of soil water
C. Movement of water molecules spending energy, opposing to diffusion
d. Water concentration of soil particles is lower than that of root hair cells
Turgor pressure can be measured, in part, by determining the ____________.
A. external force of water applied to a bacterial cell's membrane
B. external force of water applied to animal cell's membrane
C. internal force of water applied to a plant cell's vesicle
D. internal force of water applied to a fungal cell's wall
The picture below shows a preparation of isolated thylakoid membranes suspended in a buffer at pH 7. The preparation is in complete darkness.
Which of the following is required for the thylakoids to generate ATP?
A.
Isolated thylakoid membranes cannot synthesize ATP.
B.
Incubation in the light plus ADP, Pi and NADP+
C.
Incubation in the light plus ADP and Pi.
D.
Addition of ADP and Pi to the buffer.
Chapter 37 Solutions
EBK BIOLOGY
Ch. 37 - Which of the following is an active transport...Ch. 37 - The water potential of a plant cell is the a. stun...Ch. 37 - Hydrogen bonding between water molecules results...Ch. 37 - Water movement through cell walls is a....Ch. 37 - Prob. 5UCh. 37 - The formation of an air bubble in the xylem is...Ch. 37 - Prob. 7UCh. 37 - Stomata open when guard cells a. take up...Ch. 37 - Prob. 9UCh. 37 - A plant must expend energy to drive a....
Ch. 37 - Which of the following statements is inaccurate?...Ch. 37 - If you could override the control mechanisms that...Ch. 37 - Prob. 3ACh. 37 - If you were able to remove the aquaporins from...Ch. 37 - Prob. 5ACh. 37 - If you fertilize your houseplant too often, you...Ch. 37 - How could you detect a plant with a mutation in a...Ch. 37 - Prob. 3SCh. 37 - Prob. 4SCh. 37 - A carrot is a biennial plant. In the first year of...
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- (2) a. Mineral salt is essential for growth of a plant. The process responsible for absorption of mineral salt is: a. Mass flow b. Diffusion Active transport C. d. Osmosis b. The reason for my answer is because : a. Absorption occurs due to concentration gradient b. Absorption occurs with the help of energy opposing to diffusion C. Movement as a bulk due to pressure changes d. Absorption through permeable membranesarrow_forwardA balloon permeable to water but not to glucose contains a 10% glucose solution. A beaker contains a 5% glucose solution. Which of the following is true? A The solution in the balloon is hypertonic relative to the solution in the beaker. B The solution in the beaker is hypertonic relative to the solution in the balloon. C The solution in the balloon is isotonic; the solution in the beaker is hypertonic. D When placed in the beaker, the balloon will lose water by osmosis.arrow_forwardpart 1 Reaching osmotic balance across a semipermeable membrane for non-charged molecules depends on: a.Relative solute concentration gradient across the membrane b.Relative electrical gradient across the membrane c.Relative solute concentration and electrical gradient across the membrane part 2 The equilibrium of a charged molecule across a semipermeable membrane depends on: a.Relative solute concentration gradient across the membrane b.Relative electrical gradient across the membrane c.Relative solute concentration and electrical gradient across the membranearrow_forward
- Below are three statements - two of which are truths and one is a lie. Which of the following statements is a lie? Select one: a. Plant cells never shrink with the support of cell wall. b. Low osmolarity means high water content. c. Saltwater fish secrete salt through their gills and have concentrated urine.arrow_forwardAn aqueous plant found in its natural environment would be in a solution known as: a. Hypotonic b. Isotonic c. Hypertonicarrow_forwardIn the following diagram, if the T.P. of cell A increases to 6, what would be the changes with regard to water movement? O.P. = 12| O.P. = 20 T.P. = 6 T.P. = 14 E O.P. = 15| 0.P. = 8 T.P. = 9 T.P. = 2 D A O.P. = 6 T.P. = 0arrow_forward
- The figure below shows a U-shaped tube with the same level of water (green color) at both sides. What will likely happen if solutes will be added on the left side? Choose the best answer A. The left region with high solutes will have higher water potential. B. The left region with high solutes will have lower water potential. C. The water will move from the region with low solutes and high water potential to the region with high solutes and low water potential. D. The water on the right region will decrease as it moves to the opposite region. A, C, and D B, C, and Darrow_forwardWhich of the following is the most accurate definition of concentration gradient? A. Difference in the number of molecules that cross a cell membrane B. Different types of solute molecules found inside and outside a cell C. Different in the amount of a molecule inside and outside a cell D. Difference in the number of molecules on one side of a cell membranearrow_forwardYou have an intact flaccid cell with a solute potential of -1.22MPa, you dropped the cell in a solution of 4M concentration at 20°C. a) In which direction water will flow? Why? b) At equilibrium, what will be the cell and solution: a. Water potential b. Osmotic potential c. Pressure potentialarrow_forward
- If a cell is in an isotonic environment, then a. the cell will gain water and burst. b. no water will move across the membrane. c. the cell will lose water and shrink. d. osmosis still occurs, but there is no net gain or loss of cell volume.arrow_forwardWhich of the following comparisons between active and the passive transport systems best describes them? (A) Active transport svstem does not require ATP molecules, while passive •transoort system does (B) Passive transport system does not require ATP molecules, while active transport system does (C) Both the active and the passive transport systems require ATP molecules. (D) Neither the active nor the passive transport system requires ATP molecules.arrow_forwardWhich of the following best describes a hyperosmotic solution? A. a solution with a higher concentration of solutes as compared to the other side of the membrane B. a solution with a lower concentration of solute as compared to the other side of the membrane C. a solution with equal solute concentration as compared to the other side of the membrane D. none of the abovearrow_forward
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