Biology, 16.03.2020 18:53 haydencheramie
The intracellular calcium ion concentration of ventricular muscle cells averages 10-4 mmol/L during diastole. The calcium ion concentration in transverse tubules (T tubules) averages 2.5 mmol/L at rest. A protein transporter on the membrane of the T tubule exchanges sodium for calcium. The transporter uses the transmembrane sodium gradient to fuel the exchange. Which of the following transport mechanisms best describes this type of transporter?A. facilitated diffusionB. primary acti*e transportC. secondary acti*e cotransportD. secondary acti*e countertransportE. simple diffusion
Answers: 3
Biology, 22.06.2019 11:20, maddiecrouch21
Drag each label to the correct location on the chart. match the function to the type of tissue
Answers: 2
Biology, 22.06.2019 14:10, Senica
Pls the table below shows the role of different substances during photosynthesis. substance role during photosynthesis glucose stores chemical energy water combines with glucose to form carbon dioxide chlorophyll traps sunlight which of the following statements would correct one of the roles listed in the table? glucose combines with carbon to form water. chlorophyll reacts with light to produce carbon dioxide. water combines with carbon dioxide during photosynthesis. chlorophyll stores chemical energy needed for photosynthesis.
Answers: 2
Biology, 22.06.2019 21:30, destinysmithds7790
Which of the following is true about the introduction of a non-native species to an environment? (a) they usually adapt quickly so they can have a positive affect on the environment. (b) they can disrupt the environment and cause much damage and devastation to native species. (c) they usually become predators in a food chain and to keep prey populations under control. (d) because the native species are better-adapted to the environment, the non-native species always end up dying out.
Answers: 1
The intracellular calcium ion concentration of ventricular muscle cells averages 10-4 mmol/L during...
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