top-rated free essay

Lab 6 Diffusion

By Sunnichld Sep 15, 2013 325 Words
Bio Lab
Lab 6
Corn SyrupAloe Vera Gel
TimeBlue DyeRed DyeBlue DyeRed Dye
10 sec1 cm1cm1cm1cm
20 sec2cm2cm1.5cm2cm
30 sec2cm1cm1.5cm2.5cm
40 sec2cm.5cm1.5cm2.5cm
50 secN/C.5cmN/CN/C

Molecular WeightDistance TraveledSpeed of Diffusion
Blue Dye793g20.00mm600mm/hr
Red Dye496g45.00mm1350mm/hr

Aloe Vera Gel

Molecular WeightDistance TraveledSpeed of Diffusion
Blue Dye793g15mm450mm/hr
Red Dye496g25mm750mm/hr

1. The red dye diffused faster in both materials.

2. Yes, since the red dye is lighter it diffuses faster.

3. The rate of diffusion does change after time. The longer the dye sits the less it spreads in the liquid.

4. Cells must stay at a distance that is equal to theis diffusion. If they are farther away or closer than they should be they would not be able to perfom their necessary finctions.

5. The thicker or thinner the medium is affects the rate of diffusion because the thinner the medium the quicker the dye diffuses. The thicker it is the longer it takes for the dye to diffuse. This affects nutrient transport because it can be delayed or expedited based on how thick the fluid is.

Experiment 2

1. Iodine seeped into the bag causing it to turn purple.

2. The starch

3. No

4. The contains more starch. The beaker contains more glucose.

5. The beaker was more hypotonic in regards to the IKI solution while the baggie was more hypotonic in regards to the starch.

6. The iodine would seep out of the bag and turn the beaker solution purple.

8. The dialysis tubing represents a cell membrane.

9. Glucose will only continue to diffuse until there are equal amounts in the bag as well as in the beaker.

Cite This Document

Related Documents

  • Diffusion Lab

    ... Diffusion Through Membranes IB Biology 11 Diffusion Through Membranes OBJECTIVES In this experiment, you will Use a Conductivity Probe to measure the ionic concentration of various solutions. Study the effect of concentration gradients on the rate of diffusion. Determi...

    Read More
  • Lab 6

    ...Lab 6 Report Part A 1. Run your model. Compare the queue statistics of the 3 processes with those obtained for Part C in the previous Lab. How have they changed and what conclusions can you draw? (Note the sums of all capacities for both cases are equivalent – 12 in each). The queue time and number statistics for the Air Jordan Logo op...

    Read More
  • Lab 6

    ... One-Sample T: Sleep Variable N Mean StDev SE Mean 95% CI Sleep 20 6.950 1.572 0.352 (6.214, 7.686)     We are also interested in the same analysis with a 99% confidence interval. Use the same steps except select the Options button and change the Confidence level: to 99.   One-Sample T: Sleep ...

    Read More
  • lab 6

    ...Taylor Hill Lab 6: Enzymes Purpose: The purpose of this lab is to test for enzyme activity, look at enzyme specificity, and how temperature affects enzyme activity. Hypothesis: I believe that the room temperature activity will produce the most activity. Materials: 3% hydrogen peroxide, a household blender, potatoes (3 medium size ...

    Read More
  • Lab 6

    ...Course Name and Number: CIS 333 LAB#6 Instructor Name: Professor West Lab Due Date: 19 May 2013 1. What is the difference between a risk analysis (RA) and a business impact analysis (BIA)? Risk analysis is often identifying the potential threats and the associated vulnerabilities to the organizations .Risk analysis doesn’t view the organi...

    Read More
  • Lab 6

    ...PRACTICAL 6: OSMOREGULATION AND EXCRETION Introduction Many animals need to control the water content of their body because the concentration of their body fluids is different to that of their environment. The process by which the amount of water and concentration of soluble ions in the body are regulated is called osmoregulation. In m...

    Read More
  • Lab 6

    ...Business Continuity Planning Lab #6. A risk assessment is a process to identify potential hazards and analyze what could happen if a hazard occurs. A business impact analysis (BIA) is the process for determining the potential impacts resulting from the interruption of time sensitive or critical business processes. A business continuity pla...

    Read More
  • Diffusion, Dialysis & Osmosis Lab

    ...Introduction In Diffusion, Dialysis & Osmosis lab, we discovered that we were going to observe and understand the conditions under which diffusion, dialysis, and osmosis occur. Then we constructed models of diffusion, dialysis, and osmosis. We predicted that the direction of change would be from the membrane to the beaker. We understood how t...

    Read More

Discover the Best Free Essays on StudyMode

Conquer writer's block once and for all.

High Quality Essays

Our library contains thousands of carefully selected free research papers and essays.

Popular Topics

No matter the topic you're researching, chances are we have it covered.