ookwork Ashadi ramz 7.3 Passive Transport When substances diffuse down their con
ID: 151061 • Letter: O
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ookwork Ashadi ramz 7.3 Passive Transport When substances diffuse down their concentaton gradient do they move from higher to lower concentration or from lower to higher concentraton? (133) During osmosis, diffusion of ocours across a membrane. (134) Is a dilute, watery solution hypotoric or hypertonic? (134) What happens to cells in a hypotonic soluton? (134) What happens to cells in a hypertonic soluton?(134) If water is diffusing in and out of a cell at the same rate, what kind of solution is itin? (134) 7.4 Adive transport uses energy to move solutes aganst their gradients During active transport, are solutes moving from lower to higher OR higher to lower concentatons? (136) The hydrolysis (breakdown) of which molecule fuels active transport? (137) Chapter 8 An htroduction to Metabolism 8.1 An organism's metabolism transforms matter and energ subjet to the laws ofthermodynamics. Is the synthesis of a molecule f(like a protein from amino acids) a catabolic pathway or anabolic pathway? (144) is the breakdown of molecules part of your catabolism or anabolism? (144) Arelight and the movement of objects considered potental or kinetc energy? (144) is chemical energy storedin a molecule like gucose considered potent al or kinetic?(144) Which law is this (21t or 2d)? "Energy can only be transferred. "(not created or destroyed) (145) What do all energy transformatons increase according to the 2ndlaw? (146) 82 The free-energy change ofreadion tell us whether or not thereadtion ocaurs spontaneously Do the products or the reactants have MORE energy in an exergonicreaction? (148 -9) Does an endergonicreaction release or absorb energ? (149) 8.3 ATP powers cdlular work by coupling exergonicreactions to endergonic reactions In energy coupling an exergonic process drives an The hydrolysis (breakdown) of which molecule fuels mostendergonicprocesses in a cell? (151)' Page 2 of 6 AMExplanation / Answer
Passive transport
-They move from higher to lower concentration is the answer.
-During osmosis,diffusion of solvent occurs across a membrane.
-Dilute water solution is hypotonic, because of less solute concentration.
-Cells become turgid/flaccid in a hypotonic solution.
-Cells shrink in hypertonic solution.
-The solution is isotonic , if the solution is diffusing in and out of cell at same rate
7.4 Active transport
-Solutes move from lower to higher concentration.
-Hydrolysis of ATP fuels active transport
8.1
-Synthesis of a molecule is anabolic pathway.
-Breakdown of molecules is called catabolism.
-Light and the movement of objects is considered as kinetic energy.
-Chemical energy stored in amolecule of glucose is conidered as potential energy.
-'Energy can only be transferred' is the Ist law of thermodynamics.
-According to second law, the entropy/degree of randomness of all energy transformations increase.
8.2
-The reactants have more energy in the exergonic reaction.
-Endergonic reaction absorb energy.
8.3
-In energy coupling, an exergonic process drives an endergonic process.
-The hydrolysis of ATP fuels most endergonic reactions in a cell.
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