The Green Human Project

Our purposol for the green human project.

Enzyme lab

Works of Enzymes

Introduction/Purpose-
      The purpose of this lab is to see the rate of enzymes and how they react with different temperatures and pH. balances in the tummy.

Materials-
         Peroxide
         pH. balance solution
        controlled temperature locations(ice, warm water, and room temperature)
        Yeast
        testing tubes
        the measuring thing that connects to the mac

Data-
There are graphs

45 drops had the greatest reaction. This is because the more drops you put in (which the drops are  representing enzymes)  lowers the amount of energy that is required for the reactants to react. 

This graph shows that when being at a warm temperature it had more of an effect. This graph is showing that as temperature rises activity of enzymes increase. This is because in warm temperatures enzymes have more an effective collision with substrate. 

This graph shows that a lower pH. balance has a greater effect. This is happened because we were experimenting on the effects that would happen in the tummy and in the tummy a lower pH. balance reacts better.

Analyzing Data/Conclusion-
      I learned that rate of reaction is higher with more enzymes  present because the energy is being reduced for the reactants to react therefore making it more effective with more enzymes. I also learned that as temperature rises the activity of an enzyme increases.The lower pH. balance has a grater effect in the tummy because it binds better with its substrate than a higher pH. balance.
  

Photosynthesis

Photosynthesis Lab

Purpose-
     To see the effects of photosynthesis and how photosynthesis works.


Materials-

• A lot of water
• aquarium snail or snails
• bromothymol
• elodea
• aquarium plant or plants
• beaker

Method-
    During this lab you will fill up half the beaker with water. After doing so put some bromothymol blue as much as to get the water to one solid color. You will repeat this but one time you will add a snail, anther time a plant and after that elodea with a snail and elodea with a plant.Wait about 15 min. for each result. Record your observations. After doing that find a dark corner to put the beaker with the bromotymol blue, snail, elodea and leave there for 3 hours. Then record your results. And clean everything up dispose of materials properly if needed.

Results/Data-

• Water + bromothymol blue = blue green  This happened because carbon dioxide in water produces carbonic acid.
• Water +  bromothymol blue+ snail = yellow  This happened because BTB is a blue-green liquid which changes to yellow color in acid and back to blue-green when returned to a neutral pH. So its pH. is abnormal. 
• Water + bromothymol blue+ plant = blue green in light This happened because BTB is a blue-green liquid when it is at its neutral pH and it is.

Water + bromothymol blue + snail + elodea = blue green in light and yellow when left in dark for 3 hours. This happened because carbon dioxide plus water yields sugar and oxygen when chlorophyll and sunlight are present and so there wasn't no sunlight which made it due this effect.

Conclusion-

    We see the way the effects of photosynthesis and how photosynthesis works in this lab by seeing how it absorbs sunlight with the light from the room and the plant or snail moving around is air and the water with BTB is the inside of the plant. When you set the beaker in the dark acid is created (turns yellow) because the plant need sunlight for photosynthesis and without it the plant is dead.