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DCPIP is a blue colour when its oxidized and when it is reduced it turns into a colourless solution. DCPIP replaces NADPH the final electron acceptor in the light dependent reaction.
So basically, as the reaction continues, the more DCPIP is reduced and the absorbance decreases.
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Does the hill reaction involve cyclic or non-cyclic phosphorylation?
It involves cyclic phosphorylation because electrons are continously recycled. The electrons lost by cholorphyll molecules are gained by DCPIP and vice versa. Thus, the hill reaction only involves cyclic phosphorylation, unless the electrons are lost to the surrounding environment.
Which analogy can best be likened to the activation energy of a chemical reaction?
a hill over which the wagon is pushed. - novanet
Reaction where the products have lower energy than the reactants?
Chemical reaction where the energy content of the products is less than that of the reactants; heat is given out from the system. eg. http://en.wikipedia.org/wiki/Exothermic_reaction * Combustion reactions of fuels * Neutralization reactions such as direct reaction of acid and base * Adding concentrated acid to water * Adding water to anhydrous copper(II) sulfate * The Thermite reaction * Reactions taking place in a self-heating can based on lime and aluminum * The setting of cement and concrete * Many corrosion reactions such as oxidation of metals * Most polymerisation reactions * The Haber-Bosch process of ammonia production
Which has the highest activation energy?
If the activation energy of a reaction is high, then it requires a large amount of energy to initiate the reaction. The situation arising when a spontaneous reaction has a large activation energy is similar to rolling a ball over a hill. At first, energy must be expended to move the ball to the crest of the hill (or, in the case of a reaction, impart enough energy to the molecules so that their bonds can be sufficiently weakened). However, once the ball is at the top of the hill, it rolls down on its own. This is analogous to the reforming of chemical bonds, which releases energy. High activation energies are typical when a reaction involves molecules whose bonds are strong.
Is rolling a ball up a hill exothermic?
No, a ball sitting at the top of a hill has potential energy, but once that ball starts to roll down the hill it's potential energy is converted to kinetic energy, the energy of motion. I disagree 100% with this edit. If a ball is rolling down hill and is say half way down it still has potential energy ready to be converted to kinetic energy So the answer is YES
Does the hill reaction involve cyclic or non-cyclic phosphorylation?
It involves cyclic phosphorylation because electrons are continously recycled. The electrons lost by cholorphyll molecules are gained by DCPIP and vice versa. Thus, the hill reaction only involves cyclic phosphorylation, unless the electrons are lost to the surrounding environment.
What compounds steal electrons?
DCPIP acts as an electron acceptor of a Hill Reacton. In this way, it "steals" electrons.
What is the name of the process where the light is utilized to produce ATP?
Light reaction or Hill's reaction.
What was the reaction of the colonists to the battle of bunker hill?
they were upset because they were getting taxes
What effect does boiling have upon isolated chloroplast how does this effect the chloroplasts ability to perform the hill reaction?
Boiling the chloroplasts will break them. Thus they will not be able to do the Hill reaction, as they will not have an intact membrane upon which to build up a pH gradient.
What is the affect on the pace count if you are travelling down-hill?
Lengthens it
How does changing the incline of a hill affect the speed of a car?
Gravity.
What occur in a chemical reaction and why are chemical reaction important?
This is the energy needed to get us from our starting point to the top of the hill would be the activation enery
What are the two different reaction of photosynthesis and explain each reaction?
These two reactions are: 1. Light reaction or Hill Reaction- in which the photolysis of water takes place to form energy rich compounds like NADPH2 & ATP and O2 is liberated from water. 2. Dark reaction or Blackman reaction- in which the CO2 is assimilated to form carbohydrates by utilizing the energy from the compounds of Hill reaction. It can also be called photosynthesis in the light-dependent stage and light-independent stage (dark stage).
Does the weight on a skateboard affect how far it will go from the top of the hill?
yes
How does gravity affect erosion?
water flows down hill because of gravity
Hill is known for working out reactions taking place during the what of photosynthesis?
light reactions I hope this helped ^^
