ipl-logo

Ap Biology Lab Report

974 Words4 Pages

ESS IA

PLANNING Introduction Water hyacinth (Eichhornia crassipes), is an aquatic plant native to Amazon Basin. Water hyacinth can rise above the surface of the water as much as 1 metre in height. Seeds of this plant can remain viable for more than 28 years. It infests rivers, dams, lakes and irrigation channels on every continent except Antarctica. I will check if light affects the rate of photosynthesis of the water hyacinth. The number of bubbles produced by the plant is the rate of photosynthesis of the plant.

Requirements: 1. 5 Lamps of 0W, 25W, 50W, 100W and 200 2. Test tube (Of 100 ml) 3. Water Jar (Of 700 ml) 4. Measurement Scale ( Up to 20 ft.) 5. …show more content…

I have used bulbs of 0 W, 25W, 50W, 100W and 200W. The bulb kept at two different distance is also independent variable.

Dependent Variables : Dependent Variable is water plant. I will count the bubbles produced by the plant. For that I will use light resource for which I will be using a bulb. Number of bubbles produced in the water hyacinth is dependent variable because it increases when distance is less and decreases when distance is kept more.

Control Variables: Control variables for this experiments are: Time: The light will be given to the plant for the time duration of 1 minute. It can be controlled by using stopwatch. It it is kept for more time it will produce more bubbles.

Temperature of water : Normal water will be used every time to control the temperature of water. If two different temperature of water will be used, we will not be able to get the exact result and cant relay on the result.

Quantity of water: To control this variable water was properly measured by measuring jar and then kept for the

Show More
Related

  • Bio 101 Lab Report

    602 Words  | 3 Pages

    First one is the independent variable which was Magnesium chloride (Mgcl2) that we would be changing. The dependent variable was the speed of the Paramecium and to see how Magnesium chloride will change it. We had two treatment levels they were our control group without Magnesium chloride and experimental group with Magnesium chloride. Our experiment was replicated twenty times. In our control group sample size, we added drop of Paramecium on 217 ml dryl’s solution.

    Read More

  • Daphnia Magna Lab Report

    247 Words  | 1 Pages

    The hypothesis for this experiment is that if daphnia are exposed to ethanol, aspirin,

    Read More

  • Tube B Biology Lab Report

    431 Words  | 2 Pages

    Especially since the experiment states that it was a healthy plant, whereas a yellowish, drooping malnourished plant would not be able to provide sufficient data. So for the time being it'll take in CO2 until it stops functioning without the sun. Tube C would also be yellow because there is no longer equilibrium once the plant runs out of initial energy from it's previous lit environment(before being used for the experiment). Tube D will not change because there is nothing with get the blue

    Read More

  • Hydrilla Research Paper

    345 Words  | 2 Pages

    A hydrilla grows a long steam that has many leaves on it as well as tiny white flowers on them which float above the water. They are an aquatic plant which means they live in water such as clean water, including lakes, ponds, rivers, streams, and marshes. Seen mostly in the Southeast of Florida and in their habitat they form dense mats of vegetation, can grow with little light, and more efficent in taking nutrients than other species. Florida faces many problems within their water bodies and waterways. The aquatic plants pollute 96% of the public lakes and rivers.

    Read More

  • Biology Quiz

    1328 Words  | 6 Pages

    a biology class wants to perform an experiment to investigate the effect of different colors of light of green, yellow, red and clear cellophane and plant three seeds in each one. What part do the three seeds experiment? A,Confounding variables B.Independent variables C.Control variables D.Dependent variables 40. Iodine directly helps which of the following glands to function properly?

    Read More

  • The Importance Of Water In The Shawsheen River Site

    636 Words  | 3 Pages

    The marshland itself harbors a wide array of ecosystem services. The water in the marshland at the Shawsheen River site has a pH of 5.5. It is slow moving with a speed of 36.88 meters/second. Where the water is moving faster there is more oxygen; whereas, where the water is moving slower, there is more Carbon Dioxide. This is a provisioning ecosystem because when the dam is removed, there will be less carbon dioxide because of the increased water velocity.

    Read More

  • Ap Biology Research Paper

    1192 Words  | 5 Pages

    2a. If sunlight were to disappear almost completely, it would leave lasting effects on many organisms such as an earthworm, a shark, a maple tree, a saguaro cactus, or a teenager. While looking at an earth worm, the short term effects would be beginning to see more of the species during the day. Earthworms are nocturnal, so they live beneath the surface when it is daylight and come out once the sun goes down. Because of this in the long run, the earthworm species would eventually become overpopulated; they would be above the surface more, so they would have more time to reproduce.

    Read More

  • Water Hyacinth Research Paper

    596 Words  | 3 Pages

    Water hyacinth is a plant species native to South America that has been introduced to some parts of the western United States, and has not ceased to wreak havoc since. The recent droughts in California have not seemed to help the situation, and the aquatic plant is a relentless pest that refuses to yield to any attempts at extermination. The state of California has spent millions of dollars in an effort to eradicate the invasive species, however water hyacinth shows no signs of leaving any time soon. Water hyacinth is a plant that is non-native to California, however it has been appearing in many of Northern California’s freshwater lakes and ponds. The plant floats on the surface of the water, and has thick, fibrous roots below the surface.

    Read More

  • Alka Seltzer's Effect On Chemical Reaction Processes

    669 Words  | 3 Pages

    The topic that the scientist has researched is the reaction rate of different particle sizes. In the experiment, the scientist will discover how the particle size of Alka Seltzer affects the rate of chemical reaction with water. The independent variable in the experiment is the particle size of the Alka Seltzer, while the dependent variable is the rate of reaction, or the volume of Carbon dioxide. The volume of carbon dioxide will be measured in ml. Also, a few of the constants in the experiment will be the amount of water, and amount of tablets.

    Read More

  • Floating Leaf Photosynthesis Lab Report

    219 Words  | 1 Pages

    In this experiment, the sodium bicarbonate increases the rate of photosynthesis. Which trial resulted in all the leaf disks floating the fastest? Explain why you think this happened? Lettuce.

    Read More

  • Spinach Leaf Photosynthesis Lab Report

    1169 Words  | 5 Pages

    Hypothesis: If four lights (UV Light, LED Light, Infrared Light, and Blue Light) are used to perform photosynthesis on a spinach leaf, then the spinach will respond most to the blue light and perform a more efficient photosynthetic process.

    Read More

  • Ap Biology Research Paper

    1818 Words  | 8 Pages

    1) Plants have evolved many ways in which they can survive well on land. a) Identify three changes that had to occur for plants to move from a life mostly in water to a life on land. Three changes that had to occur for the plants to move from aquatic to terrestrial life are the following: Body support: In water, the plants are buoyant and the effect of gravity on them is minimal. The reason of developing rigid stem is to support the plants in a way that it can grow higher above the land.

    Read More

  • Slime Mold Research Paper

    230 Words  | 1 Pages

    I would like to do an experiment seeing how Physarum Polycephalum reacts to different lighting because while reading a passage about slime molds, I was informed that slime molds (especially Physarum) have been known to react to different lights. Because of this, I

    Read More

  • Biological Membranes Lab Report

    1621 Words  | 7 Pages

    Methanol, has a molecule containing CH3OH it being the smallest, ethanol having more carbons and hydrogens than Methanol comes second, CH3CH2OH, and propanol, CH3CH2CH2OH, is the largest of the three molecules. Aim: The aim of this experiment is to see the effects of different alcohols and concentrations on the biological membrane of the beetroot. Research Question: How do different alcohols and concentrations affect the biological membrane of a beetroot? Hypothesis: As the alcohols increase in toxicity and concentration, the damaging and breaking down of the membrane will increase leading to more red pigment being released into the solution causing the absorption of the solute to increase.

    Read More

  • Effect Of Light Intensity On The Rate Of Transpiration

    1950 Words  | 8 Pages

    Research Question: How does the presence of light impact the rate of transpiration in plants? Aim: The aim of this experiment was to investigate how the presence of light affects the rate of transpiration in plants. Hypothesis: As light intensity increases, the rate of transpiration (water uptake) in a plant increases.

    Read More

More about Ap Biology Lab Report

Open Document