Answer:
C. away from the area where it is more concentrated.
Explanation:
If a molecule is moving across a cell membrane w/o using the cell's energy, it is diffusion, which is defined as the movement of a substance from higher to lower concentration. Diffusion <em>never </em>requires energy, whether it is facilitated or not, as clustered molecules and/or atoms simply want to get the heck away from each other if in too high concentration in a single place. The type of molecular movement across a cell membrane that would require the cell's energy would be active transport, which often requires ATP or GTP and works against a concentration gradient.
Cheers.
Answer:
Los trigliceridos antes de ser disociados en moleculas energeticas necesitan ser absorvidos.
Para eso es importante aclarar que se absorbe nen elintestino en forma de quilomicron, por su caracteristica hidrofuga y son emulsionados por el jugo pancreatico y los jugos provenientes de la vesicula.
Una vez absorbido, este puede seguir diferentes rutas metabolicas de un cuerdo a la necesidad energetica de la persona.
En el caso que una persona obtiene energía de un acido graso o de su reserva adiposa es por que no hay mas reserva de glucogeno, es decir en ayunos prolongados, en personas con dificultad de asimulacion glucosidica como los diabeticos, personas con trastornos anorexicos recientes.
Explanation:
Las grasas contienen una gran aporte de ATP posterior a la adicion de CO2 y H20, en los procesos de beta oxidacion y el ciclo del acido citrico.
El metabolismo de estos se considera toxico en momentos prolongados ya que el producto de su metabolizacion son los cuerpos cetonicos. Los cuerpos cetonicos aumentan la cetoacidosis de la sangre y atraviezan la barrera hematoencefalica.
El ph por la cetoacidosis disminuye generando toxicidad tisular y del snc, hiperventilacion, hipercapnia, cansancio, aliento cetonico, fallo proteico de algunos complejos enzimaticos de nuestro organismo.
Ademas esimportante aclarar que el ser humano obtiene carbohidratos del glicerol y no de la porcion de acidos grasos.
Answer:
a. is converted to NAD+ by an enzyme called dehydrogenase
Explanation:
The electron transport chain of cellular respiration is the final step that oxidized NADH and FADH2. These reducing powers are formed during glycolysis and Kreb's cycle. Complex I of the electron transport chain present in the inner mitochondria membrane is NADH dehydrogenase. This protein complex accepts electrons from NADH and oxidizes it into NAD+. NADH dehydrogenase couples oxidation of NADH with the pumping of proton towards the intermembrane space.
Answer;
Decreased birthrate
If immigration and emigration numbers remain equal , decreased birthrate could cause a slowed growth rate.
Explanation;
All populations change in size with time . Change in population is dependent of various factors, namely; birthrates, death rates, immigration and emigration.
Therefore; change in population size would be given by the difference of the sum of birth rates and immigration and the sum of death rates and emigration. That is; Change in Population Size = (Births + Immigration) - (Deaths + Emigration). A decreased birth rate with emigration and immigration remaining constant would cause a slowed growth rate.
Answer:
The correct answer is D. The genes are coded to produce specific proteins, by the process of transcription and translation.
These proteins then, lead to the production of characteristic traits like eye color, hair color etc.
So genes indirectly control the traits
Explanation:
