i am going to take a stab at this
They require energy to live
Answer: depolarization
Explanation:
On depolarization, the sodium gates in the neuron membrane closes after sodium ions flow inside, while potassium gates open causing potassium ions to flow out and reestablish the original resting potential of the membrane.
The rapid change in membrane potential from resting to action potential is DEPOLARIZATION
Answer:
ttcgg, and taagcc
Explanation:
A and T attach to each other, and C and G attach. those are the only ones they can attach to.
Hope this helps!
Answer: The calcium ion binds to troponin, and this slides the tropomyosin rods away from the binding sites.
Explanation:
Contraction and relaxation of muscle cells brings about movements of the body. The contractile myofilament called sarcomeres are bounded at each end by a dense stripe called the Z - line, to which the myosin fibres are attached, and lying in the middle of the sarcomere are the actin filaments, overlapping with the myosin.
When action potential spreads from the nerve along the sarcolemma (muscle cell membrane), it penetrates deep into the muscle cell through the sarcoplasm (cytoplasm of muscle cell), and releases CALCIUM from the intracellular stores.CALCIUM triggers the binding of myosin to the actin filament next to it forming CROSS BRIDGES.
For this to occur, ACTIN BINDING SITE has to be made available. TROPOMYOSIN is a protein that winds around the chains of the actin filament and covers the myosin-binding sites to prevent actin from binding to myosin. The first step in the process of contraction is for calcium ions to bind to troponin so that tropomyosin can slide away from the binding sites on the actin strands.
Hihi!
<span>In general the water should be kept around 100-105 degrees fahrenheit! You should only spend around 10 minutes in the bath at a time, long bathes and showers damage your skin and take out all the moisture in your skin as well!
I hope I helped!
-Loliarual</span>