The movement of molecules in and out of a cell is essential to its function. The cell membrane regulates this movement though processes such as diffusion, osmosis, active transport, etc. These activities on the next couple pages are designed to assess your understanding of these processes. Scenario #3 Semi-permeable membrane Oxygen Carbon, Dioxide Lungs Blood stream After studying the image above, select the statement(s) that would explain what is likely to happen. Choose ALL that apply. The carbon dioxide molecules will move into the lungs until equalibrium is reached. All the carbon dioxide molecules will move into the lungs to be exhaled. All the oxygen molecules will move from the lungs into the blood stream. The semipermeable membrane will prevent the movement of either molecule. The oxygen molecules will move into the blood stream until equalibrium is reached.

(Do not forget to label the axes, the units on the axes, scale, and the title) the diffusion time (y axis) 2. Based on your results, would it be more efficient for a multicellular animal to grow by increasing the size of cells or by increasing the number of cells? Explain your answer referencing your results from the lab. Only students in Science 10 need to complete the following question. 3. The concept of surface area to volume ratio can be applied to multicellular organisms. Using your understanding of the surface area to volume ratio, explain why moving from the equator towards the North Pole, bears (Sun bear, Panda bear, Black bear, Grizzly bear, and Polar bear) increase in size. PH Sp C

QUESTION 6 You treat a biological membrane with an enzyme that degrades proteins. Do you expect this treatment to alter the diffusion rate for CO2? What about for sodium ions (Na*)? For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac).

What type of energy helps drive the passive processes of diffusion, osmosis, and facilitated diffusion? (Pick ALL correct statements involved with this.) In other words what are all the TRUE statements regarding these processes? Select one or more: a.random motion which increases when temperature increases b.ATP energy c.random motion which increases when molecules have large molecular weight d.random motion which increases when molecules concentration decreases e.random motion which increases when molecules concentration increases f.random motion which decreases when temperature decreases g.random motion which increases when molecules have low molecular weight

Question 8 What is true of binding pockets? They contain electrostatic interactions O They occur in unfolded proteins O They only occur in the membrane They contain variable amino acids All of the above

elta.edu/d21/le/content/2963723/viewContent/3463987/View [mark all correct answers] The Phantom Of The Opera Choose all of the correct answers. Diffusion is a process that: a. occurs in liquids and gases Ob. only occurs in liquids O c. uses energy Task: View this topic X DOLL d. uses no energy e. occurs naturally O f. occurs from a lower concentration of molecules to a higher concentration g. occurs from a higher concentration of molecules to a lower concentration h. results in an even distribution of molecules ✓i. only occurs with small molecules like water j. is more rapid at low temperature O k. is more rapid at high temperature 5.2 Passive Transport - Biology 2 Activity Details DELL

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Question 3. What molecule facilitates the bending of the ER membrane when a COPII-coated vesicle is formed on the surface of the ER?

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QUESTION 46 In spectrophotometry, optical density (OD) is the same as: O transmittance. an overdose. absorbance. concentration. activation energy. QUESTION 47 A given enzyme has an optimal pH of 3, which is: O neutral. acidic. O basic. 00