Pancreas
It releases insulin to lower blood sugar and glucagon to raise blood sugar
Explanation:
<h3>this is my final answer hope it helps </h3>
<h3>Answer: Letter A</h3>
Let’s say John’s age is x. Jim’s age is y. And Dana’s age is z. Then the equation would be:
1.) x + y + z = 167.
We also know that John (x) is 3 years older that Jim (y), so we can make the equation:
2.) y + 3 = x
We know that Jim (y) is 4 years younger than half of Dana’s age (z), so we can make this equation:
3.) z/2 - 4 = y
Now we can combine these equations so that we only have one variable remaining.
The second and third equation can combine to create:
4.) (z/2 - 4) + 3 = x
Then combine the first, third, and fourth equations to have only z as a variable.
5.) ((z/2 - 4) + 3) + (z/2 - 4) + z = 167
Simplify the fifth equation by isolating the variable:
z = 86
Dana’s age is 86. Now plug this into the remaining equations.
86/2 - 4 = 39
Jim is 39. Plug this number into the second equation.
39 + 3 = 42.
John is 42.
FINAL ANSWER:
John = 42
Jim = 39
Dana = 86
they lower the activation energy of reaction
In the conversion of glucose to pyruvate, only one of the actual steps involve electron transfer.
Glycolysis involves a series of reactions which derive energy from glucose by splitting it into two three-carbon molecules i.e. pyruvates. It occurs in the cytoplasm and does not require oxygen.
The sixth step in this process involves electron transfer in which two half reactions occur simultaneously:-
- Glyceraldehyde-3-phosphate (one of the three-carbon sugars formed in the initial phase) is oxidized, and
- NAD+ is reduced to NADH and H+.
The overall reaction is exergonic i.e. energy releasing. The energy is used later to phosphorylate the molecule leading to the formation of 1,3-bisphosphoglycerate.
To learn more about Glycolysis here
brainly.com/question/14076989
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