leak channels are channel proteins in the membrane which allows the movement of molecules or ions down the concentration gradient this process does not require energy, so the answer is c) 0 watts.
U-61.6 mV Question 9 How much power must the typical cell in the human body use...
Many cells in the human body maintain an electric potential difference across their cellular membranes, typically through the use ion-specific pumps and channels that generate an excess of negative charges on the inside of the cellular membrane and an excess of positive charges on the outside. Let us estimate the total energy stored in the human body by this type of charge separation. Part a Different cells can have vastly different cell sizes; but as an approximation, let us assume...
How much power, in watts, does a human being consume? We can calculate a very rough estimate if we assume that all of the energy needed to power a human body ultimately turns into heat that is lost by radiative cooling. Let's assume that we're talking about a person with a body temperature of 37°C, sitting in a room that is at 25°C. We'll also assume that the human and their surroundings are perfect blackbodies (i.e. objects that have a...
Question 9 Not yet answered Points out of 2.00 P Flag question How much real power is produced in a circuit by 50 amps at 100 volts with a power factor of 80%? Select one: a. 4000 watts b. 4000 volt-amps c. 5000 volt-amps O d. 4000 farads e. 5000 watts
1.) A human cell in G2 has 6.0 x 109 bp of DNA. About how much DNA will that cell have in Prophase? A. 3.0 x 10^9 bp B. 1.2 x 10^10 bp C. 1.5 x 10^9 bp D. 6.0 x 10^9 bp . 2.) A fruit fly cell in G1 has 1.2 x 108 bp of DNA. How much DNA will that cell have in G2? A 2.4 x 10^8 B 1.2 x 10^9 C 1.2 x 10^8 D...
Question 9 2 pts How many sex chromosomes are found in a human sperm cell? 02 04 1 0 0
Assuming a typical efficiency for energy use by the body, how many slices of pizza must you eat to walk for 3.0h at a speed of 5.0 km/h? Assume that your mass is 68 kg,metabolic power of 68 kg individual walking at 5 km/h is 380 W , and the energy content of slice of pizza is 1260 kJ. Number of Slices of pizza=---------
Use the References to access important values if needed for this question. metal potassium crystallizes in a body centered cubic unit cell. When X-rays with ž. - 1.937 A are used, the second-order Bragg reflection from a set of parallel planes in a(n) potassium crystal is observed at an angle 0-21.32°. If the spacing between these planes corresponds to the unit cell length (d-a), calculate the edge length of the potassium unit cell. Submit Answer Retry Entire Group 9 more...
QUESTIONS Question-3: Draw "speed vs. torque" curve using data in Table-1. The completed graph represents the speed vs. torque characteristics of a typical DC shunt-wound motor. Terax Question-4: Calculate the speed regulation (full load - 12 lbf.in) using the equation: 2-143) 143 (no load Regulation (full load speed) Speed regulation- % Part-II - Motor Efficiency Calculation: Set the dynamometer control knob at its full CW position (to provide the maximum starting load for the shunt-wound motor). Turn on the power...
Question 9 1 pts How much work must we do on an electron to move it from point A, which is at a potential of +50V, to point B, which is at a potential of -50 V, along the semicircular path shown in the figure? Assume the system is isolated from outside forces. (e-1.60 × 10-19 C) +50V -50V O 1.6 1.60x 10-17 -1.60x 10-17 O-1.6J This cannot be determined because we do not know the distance traveled
9.) (8 pts.) Use the following /2 cell information to answer the question below: Cu(s) | Cul(s) | Kl(aq) (0.075 M)||| The potential (E) for this 12 cell may be calculated using the Nernst equation and the following 12 reaction and standard potential: Cul(s) + e 5 Cu(s) + I'(aq) E° = -0.185 V Show that an equivalent potential (E) can be calculated for this 12 cell using the following 12 reaction and the Ksp value for Culs). You must...