A research group has discovered an organism with cells that contain a previously undescribed organelle. They do some tests on th
e isolated organelle to see if it is involved in any major metabolic reactions. To do this, they incubate these organelles for a period of time and determine changes in the amount of various substances in the suspending solution. The results follow. Based on this analysis, which metabolic process do you conclude is taking place in this organelle?
Select one:
a. pyruvate oxidation
b. citric acid cycle
c. glycolysis
d. electron transport chain/oxidative phosphorylation
e. glycolysis and the citric acid cycle
2. A research group has discovered an organism with cells that contain a previously undescribed organelle. They do some tests on the isolated organelle to see if it is involved in any major metabolic reactions. To do this, they incubate these organelles for a period of time and determine changes in the amount of various substances in the suspending solution. The results follow.
Based on this analysis, which metabolic process do you conclude is taking place in this organelle?
Select one:
a. pyruvate oxidation
b. citric acid cycle
c. glycolysis
d. electron transport chain/oxidative phosphorylation
We know that the Citric acid cycle is also known as the TCA cycle (tricarboxylic acid cycle) or the Krebs cycle. This cycle occurs in Mitochondria in case of eukaryotes. In this cycle acetyl-CoA is oxidized which comes from carbohydrates, proteins and fats and energy is released in the form of ATP.
water is also used in this process. NAD+ gets reduced to NADPH. In this system carbon dioxide is produced as a waste byproduct. ATP is produced as the main product. ATP is also used as a source of energy.
<span>This theory is called punctuated equilibrium. In this theory it is explained that there are very long periods of no change at all to a species, yet there are also bursts of evolutionary change interspersed within the time period. The period of remaining the same throughout time (most of the time) is called stasis, and is present within this theory of punctuated equilibrium.</span>
Weathering causes the granite to break down into small particles - sand. The sand becomes buried and compacts into sandstone. If the sandstone continues to be buried and comes into close contact with high heat, such as magma, it can be turned into quartzite.
Lysosomes, because they are the organelles that secrete these hydrolytic enzymes and help break down old organelles, viral/bacterial invaders, and food particles.
