Ask Question, Ask an Expert


Ask Biology Expert

1. 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. prepare a few paragraphs describeing 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. describe 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? describe your answer using scientific evidence.

Experimemt 4: osmosis- tonicity and the plant cell
Post- lab problems

1. 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. describe 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. describe 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? describe.

Biology, Academics

  • Category:- Biology
  • Reference No.:- M943526
  • Price:- $80

Guranteed 48 Hours Delivery, In Price:- $80

Have any Question? 

Related Questions in Biology

1 describe the difference between a tumor suppressor gene a

1. Describe the difference between a tumor suppressor gene, a proto-oncogene, and an oncogene. Provide an example of each. 2. Cervical cancer is mainly caused by human papilloma viruses (HPVs). Explain how viruses contri ...

Which cultures would be more likely to focus on external

Which cultures would be more likely to focus on external controls? Which cultures would consider direct controls to be more important than indirect controls? Be specific and explain your answer.

Explain in detail the physiological cause of huntington

Explain, in detail, the physiological cause of Huntington Disease. Describe its symptoms and the physiological cause for each, and describe all available treatments and the physiological changes that each treatment cause ...

Identify and give functions of the organs and structures of

Identify and give functions of the organs and structures of the urinary system.

Blood typingintroductionblood typing is critical in

Blood Typing Introduction Blood typing is critical in medicine. If a person receives the wrong type of blood, they can die. The purpose of this virtual lab is to allow you to simulate determining the blood type of three ...

What is produced by inflation of the apex of the

What is produced by inflation of the apex of the conidospore and later the inflated apex is separated by a septum?

Color vision gave our primate ancestors great advantages if

Color vision gave our primate ancestors great advantages. If color vision is an advantage, discuss how the condition of color-blindness still exists in humans today.

Gene technologygene technology carries with it social and

Gene Technology Gene technology carries with it social and ethical implications-many of which engender personal views and discussion. Select one (1) of the following biotechnology topics to write about:  Genetically modi ...

For training and development classcompare and contrast two

(For Training and Development Class) Compare and contrast two learning theories. Which one do you believe is most effective? Why? Your response should be at least 200 words in length.

Answer the following questionwhat is the domain and kingdom

Answer the following question: What is the domain and kingdom for an organism that has a nucleus, is not motile, and does not perform photosynthesis? What is taxonomy? What role does this serve? How does taxonomy assist ...

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro

Describe what you learned about the impact of economic

Describe what you learned about the impact of economic, social, and demographic trends affecting the US labor environmen