Answer:
B. decreases salivation and increases blood pressure
Explanation:
The sympathetic nervous system is part of the autonomous nervous system which controls involuntary responses of the body such as salivation and blood pressure.
The sympathetic nervous system is majorly responsible for body actions that are produced when threat is perceived. It generates responses referred to as the “fight or flight” response. Examples of such responses include, increased breathing, increased high blood pressure, dilation, decreased salivation, etc.
Activation of the sympathetic nervous system would result in rise in the blood pressure as can be witnessed by someone whose body has perceived a threat or reacting to a stressful situation.
The control of salivary production by the sympathetic nervous system leads to the release of noradrenaline which acts on certain receptors that results in decrease in the production of saliva. This is evident in a person that is facing a threat also.
The ways the carbon in animal waste reach the atmosphere is : B. Decomposition, Fossil fuel formation, and fossil fuel emissions
Both Decomposition and fossil fuel formation will release organic carbon to the atmosphere while the fossil fuel emission will release carbon dioxide
hope this helps
Answer:
el acetil-CoA necesario para la síntesis de colesterol puede provenir de la vía glucolítica
Explanation:
El colesterol es fundamental para la formación de las membranas celulares, actuando como mediador del grado de fluidez en las membranas; además, esta molécula actúa como precursor de hormonas esteroideas y ácidos biliares. La sintesís de colesterol empieza con la condensación de acetil-CoA y acetacetil-CoA:
Acetil-CoA + Acetacetil-CoA + H2O >>> 3-hidroxi-3-metil-glutaril-CoA
Ahora bien, el acetil-CoA para este proceso puede ser producido por la degradación hasta piruvato del excedente de glúcidos mediante de la vía glucolítica. Este reacción se produce dentro de la mitocondria, donde el piruvato produce acetil-CoA.
