HCl 13 What determines whether a transport process is active or passive? Arrows show the direction of net osmosis. Since water will move down its concentration gradient if it is able, water diffused from the beaker into the sac, where its concentration was much lower.
Whether or not the cell must provide ATP for the process; if so, the process is active. Egg 1 in distilled water: Water moves by osmosis from an area of higher water concentration into an area of lower water concentration.
As a result, the fluid column molasses and entering water rose in the thistle tube. Movement of molecules from a region of their higher concentration to an area where they are in lower concentration. The thistle tube was immersed in a dialysis sac which, in turn, was immersed in water.
Its driving force is kinetic energy of the molecules themselves. Osmosis caused water to enter the sac because the solution in the sac was hypertonic to the distilled water in the beaker.
The sucrose did not diffuse from the sac; upon boiling, some of the sucrose bonds are hydrolyzed, releasing glucose and fructose. List and explain your observations rel- ative to tests used to identify diffusing substances, and changes in sac weight observed.
Net movement occurs only when there is a concentration gradient. Water moves from an area of higher water concentration to an area of lower water concentration, from hypotonic to hypertonic solution.
State whether each of the following will a move into the sac, b move out of the sac, or c not move. Which field contains an isotonic bathing solution? Water moved into the sac by osmosis; the sac gained weight.
One such system moves substances across the cell membrane attached to a carrier molecule called a solute pump. Assume that the sac is permeable to all substances except albumin. Water moved into the sac by osmosis; sac gained weight 4 Sac 2: List and explain your observations.
Which field contains a hypertonic solution? In addition to this characteristic, what other factors influence the passage of substances through living membranes?Cell Transport Mechanisms and Permeability Words | 6 Pages Lab 1: Cell Transport Mechanisms and Permeability Purpose The purpose of this experiment is to have a better understanding of the subject matter and to understand the difference between active and passive cellular transport.
Study Physiox exercise 1 - cell transport mechanisms and permeability flashcards taken from the book Human Anatomy and Physiology. EXERCISE 1: Cell Transport Mechanisms and Permeability ZAO Ch Activity 1: Simulating Dialysis (Simple Diffusion) (pp.
4–6) killarney10mile.combe two.
Study Exercise 5: The Cell: Transport Mechanisms and Permeability flashcards. Play games, take quizzes, print and more with Easy Notecards.
Exercise 1: Cell Transport Mechanisms and Permeability Worksheet Assignment Due: Week 2 Student instructions: Follow the step-by-step instructions for this exercise found in your text and record your answers in the spaces below.
Submit this completed document by the assignment due date found in the Syllabus. Please make sure that. 5exerciseA Review Sheet 5A Choose all answers that apply to items 1 and 2, and place their letters on the response blanks to the right.
Molecular motion a. reflects the kinetic energy of molecules. c. is ordered and predictable. The Cell: Transport Mechanisms and Permeability.Download