3. Describe the results of the attempts to diffuse glucose and albumin through the 200 MWCO membrane. How well did the results compare with your prediction? As expected, glucose, with a molecular weight of approximately 180 g/mol, readily diffused across the 200 MWCO membrane; whereas, albumin did not diffuse across the 200 MWCO. Albumin is a protein composed of 67 amino acids and its molecular weight is significantly greater than 200 g/mol, accordingly the molecules were too large to pass through the 200 MWCO membrane. The results of the experiment supported my predictions.___…
b) Active transport moves molecules up the concentration gradient, low to high concentration. Diffusion goes down the concentration gradient, high to low concentration.…
Exercise 1: Cell Transport Mechanisms and Permeability: Activity 5: Simulating Active Transport Lab Report Pre-lab Quiz Results You have not completed the Pre-lab Quiz.…
Phospholipids make up most of the cell membrane, in a phospholipid bilayer. Phospholipid molecules form two layers, with the hydrophilic (water loving) head facing the extracellular fluid and the cytosol (intracellular) fluid, and the hydrophobic (not water loving) tails facing one another. The cell membrane is constructed in such a way that it is semipermeable, and allows oxygen, CO2 and lipid soluble molecules through easily, while other molecules like glucose, amino acids, water, and ions cannot pass through quite as easily. That is the meaning behind the chant “some things can pass, others cannot!”.…
Exercise 1: Cell Transport Mechanisms and Permeability: Activity 4: Simulating Filtration Lab Report Pre-lab Quiz Results You scored 100% by answering 4 out of 4 questions correctly. 1. Filtration is a process that You correctly answered: c. is passive. 2. Filtration is dependent upon a You correctly answered: b. hydrostatic pressure gradient. 3. The filtrate You correctly answered: d. All of these answers are correct. 4. An important place that filtration takes place in the body is in You correctly answered: d. the kidneys.…
Cell Transport Mechanisms and Permeability 1 EXERCISE 1 OBJECTIVES 1. To define the following terms: differential permeability, passive and active processes of transport, diffusion (simple diffusion, facilitated dif- fusion, and osmosis), solute pump, pinocytosis, and phagocytosis. 2. To describe the processes that account for the movement of sub- stances across the plasma membrane, and to indicate the driving force for each. 3.…
C. facilitated diffusion, active transport Active transport is where a cell uses energy to move molecules. Facilitated diffusion is the same as diffusion, just when they pass through integral proteins.…
Exercise 1: Cell Transport Mechanisms and Permeability: Activity 1: Simulating Dialysis (Simple Diffusion) Lab Report Pre-lab Quiz Results You have not completed the Pre-lab Quiz.…
b. explain the significance of each type of transport to a specific cell (you may use different cell types as examples)…
What is the basic difference between simple diffusion and facilitated diffusion across a cell membrane? - In facilitated diffusion, molecules only move with the aid of a protein in the membrane.…
3. Describe the results of the attempts to diffuse glucose and albumin through the 200 MWCO membrane.…
What happens to the urea concentration in the left beaker (the patient)? It mixes with the water to balance out the structure.…
3. Describe the results of the attempts to diffuse glucose and albumin through the 200 MWCO membrane. How well did the results compare with your prediction?…
3. Active Transport- Pushing particles from low to high concentration (against the gradient), uses a carrier protein…
This is the control of water inside a cell or organism. It is very important if you are a unicellular organism living…