Answer:
An incubator.
Explanation:
Most enzymes work best at about 37 °C and start to denature around 40 °C.
Thus, the student should use a laboratory incubator, which is essentially an oven that can heat a biological sample to a set temperature.
This model shown below reaches a maximum temperature of 62° C, and its heat controller maintains temperatures within ± 0.5 °C°.
<span>Menopause has little impact on a woman's sexual interest and activity</span>
<span>Answer: Opening of Na+ and K+
Explanation:
Acetycholine binding opens Na+ and K+ ion channels in the receptors that allow simultaneous passage of Naâş into the muscle fiber and Kâş out of the muscle fiber. More Naâş ions enter than Kâş ions exit, which produces a local change in the membrane potential called the end plate potential.
Binding of acetycholine to receptor proteins opens Na+ and K+ channels resulting in jump in resting membrane potential(RMP) from -90mV to +75mV forming an end-plate potential (EPP).</span>
