Answer the following questions in vour lab notebook for prep work. The questions ask you to think about what is likely to happen when we actually conduct the starch/iodine demo in lab. a. Draw a sketch of a beaker with a bag or cell floating inside. Using the information above, write into your sketch the starting locations for water, iodine and starch. b. Given the following molecules (water, iodine, starch), which is the largest? c. Why do we care about the size of particles when predicting movement? d. How will you know if iodine is able to diffuse across the membrane? e. How will you know if starch is able to diffuse across the membrane?

Answer the following questions in vour lab notebook for prep work. The questions ask you to think about what is likely to happen when we actually conduct the starch/iodine demo in lab. a. Draw a sketch of a beaker with a bag or cell floating inside. Using the information above, write into your sketch the starting locations for water, iodine and starch. b. Given the following molecules (water, iodine, starch), which is the largest? c. Why do we care about the size of particles when predicting movement? d. How will you know if iodine is able to diffuse across the membrane? e. How will you know if starch is able to diffuse across the membrane?

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

See similar textbooks

Similar questions

Water is critical to understand for biophysical processes. a. Draw the chemical structure of water (at pH 7.5). Add labels of bond lengths, atomic radii, angles, dipoles, and types of intermolecular interactions possible. b. Draw a diagram of water within a hydrophobic cavity. Include expected distances and label interactions. c. What is the volume of a bacterial cell? Of a eukaryotic cell? How many water molecules could fit within both cell types assuming the cell is 70% water? d. At a pH of 7.5, how many protons are available in the cell for cellular processes that require
Laboratory Activity Frankenstein - Osmotic Pressure Objective: To determine the effects of concentration of solute on osmotic pressure of solutions Materials: raisins, tomato, salt, water, and containers Procedure: 1. Before you did this activity, make a prediction by drawing pictures of what will happen to the raisins before and after the activity. Before After 2. in a container, dissolve salt in water until no more salt dissolves. Another container will hold pure distilled water. 3. Submerged five raisins in each container. 4. Note the appearance of the raisins. From time to time, inspect how the raisins look, Record your observations. 5. Explain the reason behind why the raisins appear like that when you submerged the raisins in different container.
5. What is pascalization? a. The use of hydrostatic pressure in sterilization, with or without added heat. b. The use of osmotic pressure in sterilization, with or without added heat. c. The use of psychological pressure in sterilization, with or without added heat. d. You misspelled pasteurization. e. None of the above.
In one procedure it says, "Pour the organic layer into a clean, dry 50-mL Erlenmeyer flask, add 2 g of calcium chloride..." What is the purpose of the calcium chloride?
13. Some fungi live as single-celled organisms. Group of answer choices True False 14. For a fungus, a fruiting body such as a mushroom serves which function? Group of answer choices Allowing asexual reproduction by fragmentation Spreading spores produced during sexual reproduction Causing disease by consuming tissues in an animal host Storing nutrients as a permanent organ in the fungus Question 15 What sort of diseases can be treated with antibiotics? Group of answer choices Cancers Diseases caused by viruses Diseases caused by fungi Diseases caused by bacteria Question 16 Which of the following is an example of a bacterium causing harm to another organism? Group of answer choices Tuberculosis in humans caused by Mycobacterium tuberculosis Protozoa in the genus Plasmodium causing malaria in humans Fungi in the genus Penicillium producing penicillin that kills nearby bacteria The ghost plant Monotropa uniflora stealing nutrients from fungi NOV 14 MacBe esc 80 O00 000 F1 F2