Sean Munroe
2/11/15
Period 8
Fueled for life Article Questions
1. Liver cells need so much ATP due to the high amount of
reactions that occur all the time. In liver cells, over 600
separate reactions occur routinely. ATP is needed to produce energy
from food; the energy produced by ATP is used to perform these
reactions.
2. The main advantage of having organelles is that these
organelles perform one specific function. In the example of
Mitochondria, this organelle is a small package of enzymes usually
found within the matrix of the organelle or the ruffles that it
has. Its function is to convert food to energy(ATP).
3. An oxidation reduction reaction is driven by an input of
energy. Molecules are reduced when the number of electrons they
contain is increased by the addition of hydrogen or loss of oxygen.
It can be summarized as X(positive) + Electron X. An example of a
reduction process is the formation of large complex molecules from
small ones.
4. The three steps in aerobic respiration is glycolysis, krebs
cycle, and the electron transport system. In glycolysis, glucose
breaks down into 2 molecules of pyruvic acid. In krebs cycle, the
pyruvic acid is broken down into CO2 in the mitochondria. In the
electron transport system, electrons are transferred from the
hydrogen molecules to complete and mass produce ATP.
5. The term food for thought at the end of the article is a pun
that refers to the statements prior to it explaining that the brain
uses most of our daily energy.
