Activity B: Molecules in MotionBrownian movement occurs when particles in a solution move because they are being struck by other particles in a solution. This was first discovered by Dr. Robert Brown in 1827when he was observing pollen grains in water under a microscope. To observe this ourselves, we will look at carmine particles suspended in water under a microscope.a Brownian MotionWetch later ShareWatch on DYoulubeWhich statement best describes the movement of the particles?O The particles are dashing through the field of view.The particles are slightly vibrating.The particles are traveling in large circle patterns.O The particles are not moving at all.

In Brownian motion, particles are randomly moving in a liquid medium and have a ziz zag pattern of…

Answered: Activity B: Molecules in Motion…

Biology 2e

2nd Edition

ISBN:9781947172517

Author:Matthew Douglas, Jung Choi, Mary Ann Clark

Publisher:Matthew Douglas, Jung Choi, Mary Ann Clark

Chapter6: Metabolism

Section: Chapter Questions

Problem 6RQ: Consider a pendulum swinging. Which type(s) of energy is/are associated with the pendulum in the...

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What happens across the membrane of an electricallyactive cell is a dynamic process that is hard to visualizewith static images or through text descriptions. View thisanimation (http://openstaxcollege.org/l/dynamic1) toreally understand the process. What is the differencebetween the driving force for Na+ and K+? And what issimilar about the movement of these two ions?
In the Nernst equation [V = 62 log10 (Co / Ci)], the term Co represents: cell bio the intracellular concentration of calcium the extracellular concentration of potassium the extracellular concentration of sodium the intracellular concentration of potassium the membrane potential (in millivolts)
i just answered a hw question that i was a little confused on. i answered it but am not fully sure if it's correct. so can you take a look at check if my answer is correct and if it's not, then a explaintion would be helpful. Would you expect water molecules to move faster when there is a HIGH concentration gradient or a LOW concentration gradient? Water molecules would move faster when there is a high concentration gradient because the pressure for the molecules in the high concentration to reach equilibrium increases since there are more molecules there than in the low concentration. So as the molecules move down the concentration gradient faster to equalize the concentration on both sides due to the increased pressure, the rate of diffusion increases.
a solution is hypotonic relative to a cell, how will water move?
DO NOT COPY THE ANSWER FROM THE SAME QUESTION. Sassa, a biology professor, wanted to demonstrate to her students the applicability of a dialyzing membrane (DM) as a model for the cell membrane by enclosing an aqueous solution in a DM bag and immersing in a beaker containing a different solution. Substances available which are permeable to the DM include 0.02 M NaCl, 0.03 M glucose, and 0.01 M glucose. The only substance available which is completely impermeable to the DM is the 0.01 M lactose. Using the substances given and materials such as a beaker, stirring rod, and string, draw ONLY ONE set-up that can be demonstrated by Ms. Sassa that will satisfy ALL of the following conditions:a. No solute will exhibit a net diffusion out of the cell.b. Glucose will exhibit a net diffusion into the cell.c. NaCl will exhibit a zero net d. No net movement of lactose from the inside to outside of the cell. Make sure to label properly the substance inside the beaker and inside the DM bag.
I. Metabolism is the elimination of metabolic wastes including nitrogenous wastes produced from the breakdown of proteins. II. Diffusion is the movement of water from a region of higher osmolarity to a region of lower osmolarity across a selectively permeable membrane. A. If the two statements are both correct B. If the first statement is correct while the second one is not C. If the second statement is correct while the first one is not D. If the two statements are both incorrect I. The functional units of the kidney where urine is formed. II. Kidneys serve as specialized organs for osmoregulation and excretion A. If the two statements are both correct B. If the first statement is correct while the second one is not C. If the second statement is correct while the first one is not D. If the two statements are both incorrect
In the experiment of Racker and Stoeckenius, bacteriorhodopsin wasoriented in such a way that it pumped H into a vesicle. Each vesicleactually contained many molecules of bacteriorhodopsin. How wouldthe results have been affected if 50% of the bacteriorhodopsin moleculespumped H into the vesicle and 50% pumped H out of the vesicles?a. The same amount of ATP would be made in the presence of light,and no ATP would be made in the dark.b. More ATP would be made in the presence of light, and no ATPwould be made in the dark.c. No ATP would be made in the presence of light, and no ATP wouldbe made in the dark. d.No ATP would be made in the presence of light, but some ATPwould be made in the dark.e. Some ATP would be made in the presence of light, and some ATPwould be made in the dark
Visit this website (http://openstaxcollege.org/l/electenergy) to learn about electrical energy and the attraction/repulsion of charges. What happens to the charged electroscope when a conductor is moved between its plastic sheets, and why?
Beginning physics students are often taught the basic concept of thermodynamic with two phrases: First, you can never win. Second, you can never break even. Explain.
______cannot diffuse across a lipid bilayer. a. Water molecules c. Ions b. Gases d. Nonpolar molecules
Detergents are synthetic soaplike substances that are used todisrupt membranes and extract membrane proteins. Explainhow this process works.
Provide examples of how changes in temperature affect chemicalreactions, protein functions, and membrane structure.

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