Answer:
Observe the graphic for the answer
Explanation:
1.- The first channel from left to right is the pump that exports protons, as you can observe, there are plenty of protons in the outside part, so the cell need to balance the quantity, that is the reason to be of a pump.
2.- The channel in the middle is the responsible for moving calcium, the same as the protons, from the outside part to the inside of the cell.
3.- The lactose carrier, that is the last channel, since the lactose is a carbohydrate that is quite big, needs a protein as a carrier to move it from the outside part to the inside, actually, some carriers can modify it shape as we can observe in the drawing to get inside some substances.
Hope this info is useful.
Answer:
I think the awnser is D. Hope it helps
Answer:
1. b
2. b
3. Solute is the solid which dissolves in the solvent while the solvent is the liquid in which the solute dissolves.
The ends of the actin filaments are anchored to the Z-line or disk.
The sarcomere is the primary functional unit of muscle fiber. It is flanked by a Z-band on each end with adjoining I-bands. The Z-band or disk is a dense fibrous structure composed of actin, α-actinin as well as other proteins.
Thin filaments or actin filaments are anchored at one end at the Z-band. Titin is connected to both the Z-band and the M-line. Thick filaments are attached in the middle of the sarcomere at the M-line.
An intermediary filament protein forms a meshwork from one Z-disk to the next across the myofibril. These networks are joined by actin through the protein dystrophin to the sarcolemma.
To learn more about sarcomere here
brainly.com/question/14005497
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Answer:
4
Explanation:
because the ocean dont produce any thing to the earth's biosphere.