Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Diffusion and concentration gradientsTable 6: sucrose concentration vs. tubing permeability1. For each of the tubing pieces, identify whether the solution inside was hypotonic, hypertonic, or isotonic in comparison to the beaker solution it was placed in.2. Draw a picture of a cell in isotonic, hypotonic, and hypertonic states.3. What is the potential of an open beaker containing pure water?4. Why don't blood cells swell or shrink in blood?5. How do osmotic power plants work?6. Research the structures that protect plant and animal cells from damage resulting from osmotic pressure. Write a few paragraphs explaining what they are, how they work, and where they are located.2. Which tubing increased the most in volume? Why?3. What does this tell you about the relative tonicity between the content of the tubing and the solution in the beaker?4. What would happen in the tubing with the yellow band was placed in the beaker of distilled water?5. Osmosis is how excess salts that accumulate in cells are transferred to the blood stream so they can be removed from the body. Explain how this process works in terms of tonicity.6. How is the experiment similar to the way a cell membrane works in the body? How is it different? Be specific with your response.7. If you wanted water to flow out of a tubing piece filled with a 50% solution, what would the minimum concentration of the beaker solution need be? Explain your answer using scientific evidence.Experimemt 4: osmosis- tonicity and the plant cellPost- lab questions1. How did the physical characteristics of the potato vary before and after the experiment? Did it vary by potato type?2. What does the net change in the potato sample indicate?3. Different types of potatoes have varying natural sugar concentrations. Explain how this may influence the water potential of each type of potato.4. Based on the data from this experiment, hypothesize which potato has the highest natural sugar concentration. Explain your reasoning.5. Did water flow in or out of the plant cell (potato cells) in each of the samples examined? How do you know this?6. Would this experiment work with other plant cells? What about animal cells? Why or why not?7. From what you know of tonicity, what can you say about plant cells and the solutions in the test tubes?8. What do your results show about the concentration of the cytoplasm in the potato cells at the start of the experiment?9. If the potato is allowed to dehydrate by sitting in open air, would the potato cells be likely to absorb more or less water? Explain.10. Compare and contrast diffusion and osmosis.
Would you be able to resolve an object that is 0.6 µm indiameter with this 40X objective? Explain your answer.
I did a throat culture and was looking at it under a 400x microscope. I saw a grid like pattern. I looked like what suburbs look like from a plane. How do I classify these bacteria?
The results of any study must be interpreted cautiously so that causal inference is not extended to a population different from the study participants in important ways.
Inorganic fertilizers contribute to water pollution and your town is encouraging its citizens to switch from inorganic fertilizers to organic fertilizers, like seaweed powder, so as to minimize pollution.
A plant breeder crossed two pink carnation flowers and collected the seeds. six of the seeds grew into red flowered plants, ten of the seeds grew into pink flowered plants and 5 seeds grew into white flowered plants.
1 leadership is best defined as .a. implementing the vision and strategy provided by managementb. the ability to
q1. what is the connection between an increase in light intensity and photosynthetic rate in leaves from a corn plant?
You are running away from a bear (yikes!) and the oxygen demand in your muscle cells is exceeding your oxygen supply. Without sufficient oxygen, electrons will not be pulled through the electron transport chain.
Insulin is a peptide hormone that:(explanation requiredfor points)
Match each important characteristic or process of Titan's atmosphere with the gas(es) and/or mechanism(s) that are thought to be responsible.
Why is important to use varying concentrations of an enzyme to demonstrate specific action of the enzyme? What three observations are needed to determine whether a response is specific.
Discuss/diagram the process from gene to protein. In other words, how do we build a protein based on a sequence of DNA?
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd