Answer:
When hydrogen peroxide is added to a chicken liver sample exposed to lemon juice the chemical reaction will be slower and appear some bubbles within the first minute (option B).
Explanation:
The liver contains an enzyme called catalase, whose function is the degradation of hydrogen peroxide (H₂O₂), an intense reaction that produces gas and heat. <u>The activity of this enzyme must occur at an appropriate pH, so changes in pH can affect the activity of catalase</u>.
- Under normal conditions, when a liver sample is exposed to H₂O₂, bubbles and foam appear in the sample as a result of the catalase reaction.
- When the chicken liver sample is subjected to the acidic lemon juice, the reaction will occur, but more slowly.
This is because the activity of the catalase enzyme, present in the liver, continues to occur —although it decreases— and will form few bubbles over a longer period of time.
The other options are not correct because:
<em> A. At a lower pH, the reaction will not form many bubbles.
</em>
<em> C. Even if the reaction is minor, and produces very few enzymes, it will always occur.
</em>
<em> D. Although the catalase/H2O2 reaction produces heat, it is impossible for the liver to catch fire and cause evacuation from the school, even less so with a reaction whose speed has been slowed down.</em>
Answer:
ok :)
Explanation:
As we know, one parent has this medical condition gene, and the other does not. If both parents had it, it would most likely that all of their children will get it, but since one doesn't have it, the gene has a 50/50 chance on spreading to the offspring or not. It also has a lot to do with the grandparents as there was probably a 25% or 50% chance that the parent with sickle cell gene got it from their parents.
hope this helps hehe
<span>The limiting factor that keeps the birds from arriving too early in the taiga is the climate surrounding including the temperature and also the precipitation. The following limiting factors are natural occurrences and may have an effect or impact on their own health and lifestyle.</span>
Answer:
Explanation:
From the reaction ; aA + bB → cC + dD
1) Keq = equilibrium constant = [A]^a [B]^b / [C]^c [D]^d
where [A] = [B] = [C] = [D] are the concentrations of reactants A, B, C and D respectively.
2) What is the actual free energy change of the reaction above? ;
- ΔG is the differences between the sum of the free energies of the product and the reactant.
- Mathematically; ΔG = (cΔGC + dΔGD) - ( aΔGA + bΔGB)
- ΔG, in terms of reaction quotient ; ΔG = ΔG(standard) + RT lnQ
where R = gas constant and T = temperature.
3) What is the standard free energy change of the reaction above;
- ΔG(Reaction) = Summation ΔGf(products) - summation ΔGf(reactants)
- where summation ΔGf = standard free energy of formation