Answer:
1. El corazón se localiza en el mediastino, que es el espacio comprendido entre ambos pulmones. 2. El miocardio es la capa funcional del corazón, puesto que su contracción impulsa la sangre hacia los pulmones y los demás tejidos. 3. Internamente el corazón presenta 4 cavidades: 2 cavidades superiores llamadas auriculasy dos cavidades inferiores conocidas como ventriculos . 4. Entre la aurícula y ventrículo del mismo lado se encuentran las válvulas auriculoventriculares. En el lado derecho tenemos la válvula tricuspide, mientras que en el lado izquierdo se encuentra la válvula mitral . 5. El ciclo cardiaco comprende dos fases, una de contracción o sistole y una de relajación llamada diastole.
Explanation:
El corazon es un organo con un tejido muscular liso especializado donde estas celulas musculares presentan uniones desmosomales de amplia conexion para la diseminacion rapida de señales, es asi como se producen contracciones ritmicas, autonomas y de manera simultanea.
El corazon a su vez presenta su auto irrigacion propia por medio de las arterias coronarias que se encargan de mantener el miocardo en buen estado de vitalidad.
Answer:
in the field you know how to swim and dive, have appropriate diving equipment, and appropriate diving certifications. as in the lab I wore my apron, latex gloves, and safety glasses. I'm if this is wrong I used google
Answer:
The correct answer will be option-D.
Explanation:
During the electron transport chain, an electrochemical gradient is established due to the movement of electrons.
The high number of protons gets accumulated in the intermembrane space of the mitochondria whereas less number of protons present in the matrix.
The protons are pushed from the outer membrane to matrix through ATP synthase where the movement of ATP causes synthase to spin and bind ADP and Pi to produce ATP.
Thus, option-D is the correct answer.
SF6 AND XeF4 are the species that will have an expanded octet structure.
Sulfur hexafluoride (SF6) has an octet geometry where one sulfur atom is surrounded by 6 fluoride atoms. Xenon Tetrafluoride (XeF4) is a square planar compound and an octahedral because of the presence of lone pairs of electrons.
The choices can be found elsewhere and as follows:
a. membranes lower the activation energy of biochemical reactions.
<span>b. reactants are within close proximity to each other. </span>
<span>c. membrane-bounded organelles act as catalysts for biochemical reactions. </span>
<span>d. reactants move faster within membrane-bounded organelles. </span>
<span>e. reactants are less likely to encounter each other within membrane-bounded organelles. </span>
The correct answer is option C. Membrane bounded organelles facilitate faster chemical reactions because it <span>act as catalysts for biochemical </span>reactions. Hope this answers the question.
