Photosynthesis and respiration

Photosynthesis is when plants take sunlight and go through a chemical reaction that makes sugar for them. the equation for photosynthesis is 6CO2 + 6H2O + Energy ® C6H12O6 + 6O2 and respiration is the reverse of photosynthesis. The equation is C6H12O6 + 6O2 ® 6CO2 + 6H2O + Energy. It's when sugar is broken down into water, carbon dioxide, and energy. The result of photosynthesis is sugar and oxygen. Humans breathe in the oxygen made by plants through photosynthesis and go through respiration. They Take the oxygen and adds carbon from their body and make carbon Dioxide, which makes the entire cycle start all over again. Photosynthesis is making energy and sugar from carbon dioxide, and respiration is the process of removing carbon dioxide by taking in oxygen.

Pku blog post

A Metabolic disorder is a genetic disease that results from when an enzyme in your body isn't functioning properly. Phenylketonuria is a recessive disease which means that to have it, the person must have inherited 2 copies of the defective gene. Phenylketonuria is a genetic disease that results from having a defective PAH Gene. If your PAH gene doesn't work right, you build up to much phenylalanine, which poisons the neurons in your brain. The symptoms are a smaller than normal head, lighter than normal skin, or lighter than normal hair. Most people realize they have it right after birth. If not treated, it can cause mental retardation, and can be tracked back to one single gene that is not sufficiently working on chromosome 12. Only 1 in about every 10,000 people have this genetic disorder.

Poison article

A danger kind of poison is the kind that effects you once you've been bitten by the black widow spider. When you're first bitten by the black widow spider, you feel something that's like a pin prick. Sometime within the next hour, the poison starts to spread from the bite area through out the rest of the body, and you start to feel a dull kind of pain. You start to suffer from many different side effects such as:

-Anxiety
-Difficulty breathing
-Headache
-High blood pressure
-Muscle weakness
-Nausea
-seizures

The venom works by immobilizing the muscles in your body. They use it so that their prey can't get away. The venom paralyzes the nervous system and and that's how it hurts people so badly. When the poison enters the body it targets the acetylcholine receptors, potassium channels and calcium channels.


http://www.calpoison.org/public/spiders.html

Photosynthesis Lab

Materials:
Bromoythmol Blue
aquarium snail
Water
Elodea
Aquarium Plant
container

Procedure:
1. Fill a container with 500 milliliters of bromothymol blue (BTB)

2. Mix 500 milliliters of water into the BTB

3. Now put an aquarium snail into the BTB

4. Add elodea to the water, let sit for 1 hour in a well lit room, and then notice the color of the BTB.

5. Remove the snail and replace it with an aquarium plant.

6. Let sit for 1 hour in a well lit room, then place it in a dark room with no light for 3 hours. Notice the color of the BTB.

Observations:
-Adding water to bromothymol blue is a blue-green.
Because CO2 mixed with water makes carbonic acid, and mixed with bromothymol blue, it changes to a blue-green color, because the acid mixes with the neutral Bromothymol blue, to change the pH to a lower number.

-If you add an aquarium snail to the blue-green water, the water turns yellow.
The acid from the snail changes the Ph to a lower number, and the blue-green liquid changes yellow when reacting with an acid.

-If you add water and elodea and an aquarium plant to bromothymol blue, it looks blue green in light
Green plants photosynthesis in light and always respire, therefore the aquarium plant takes in the carbon dioxide keeping closer to a neutral pH level.

-If you add water, elodea, and an aquarium snail to bromothymol blue, it looks blue green in light, but yellow in the dark.
Carbon dioxide and water produces sugar and oxygen when chlorophyll and sunlight are present, and when Bromothymol blue reacts with an acid it turns yellow, and changes back to blue green when it gets back to a normal pH Level.

Conclusion:
So after we experimented, we discovered that acidic substances change bromothymol blue yellow by changing the pH level and if the pH level is returned to a neutral number, then the color changes back to a blue green shade. We have discovered that plants photosynthesis in light, and constantly respire. Also, that carbon dioxide mixed with water, produces a carbonic acid.

Biochemistry