14. The nucleus is built in the stomach 15. The cells bleed
Atoms in triglycerides could be used in the synthesis of DNA. Acetyl-CoA is the metabolic intermediate involved in Citric acid cycle pathway which functions as crossover points between triglycerides and DNA.
The Citric acid cycle also known as Krebs cycle or TCA cycle (tricarboxylic acid cycle) involves a series of enzyme-catalyzed reactions which occur in the mitochondrial matrix. In this pathway, acetyl-CoA is oxidized to form carbon dioxide and the coenzymes are reduced, which generate ATP in the electron transport chain.
Acetyl-CoA (acetyl coenzyme A) takes part in many biochemical reactions linked with protein, carbohydrate and lipid metabolism. Its main role is to deliver the acetyl group to the Citric acid cycle (Krebs cycle) to be oxidized for energy production.
To learn more about Acetyl-CoA here
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Answer:
The correct option is C: "Oxygen levels would be higher, but carbon dioxide levels would be the same".
Explanation:
The sealed aquarium is paced near a window which means they have access to sunlight, and hence, can photosynthesize. As the plants use up carbon dioxide during the day and give out oxygen during this process, they also respire during the night, a product of which is carbon dioxide. This is why the levels of carbon dioxide will remain the same and level of oxygen will rise because they are photosynthesizing for a longer period during the day than they are respiring during the night.
Hope that answers the question, have a great day!
Answer: Na+ channels are closed
Explanation:
The refractory period describes a period between the initiation of an action potential (where Na+ channels are active/open), and immediately after the action potential’s peak. In the absolute refractory period, action potentials cannot be generated, as Na+ channels are in an inactive or closed state, they usually take around one or two minutes.
After the absolute refractory period the relative refractory period (RRP) occurs. During the RRP, it is hard to send another action potential. Na+ channels are once again open, but the cell remains hyperpolarized- its membrane potential, remains negative. Recovery from inactivation is voltage and time-dependent; Action potentials would require an influx of more positively charged ions. These must be more than a specific threshold in order to have the cells send along more action potentials which helps with figuring out stimulus intensity.
