Physics, 10.10.2019 04:10 brooklyn4932

Which statement about a signal transduction pathway is true?
a. a signal transduction pathway provides a means for a signal molecule to pass through the cell membrane and initiate a chain of events inside the cell.
b. a signal transduction pathway is nonspecific, which allows the cell to use the same pathway for many different environmental signals.
c. a signal transduction pathway allows a cell to change its external environment to make it more suitable for its needs.
d. a signal transduction pathway allows a single signal molecule to initiate a chain of events that amplify the signal at many steps inside the cell.

Answers: 1

Show answers

Another question on Physics

Physics, 21.06.2019 14:20

Two friends are having a conversation. anna says a satellite in orbit is in freefall because the satellite keeps falling toward earth. tom says a satellite in orbit is not in freefall because the acceleration due to gravity is not 9.80 m/2 . who do you agree with and why?

Answers: 1

Answer

Physics, 22.06.2019 03:50

Three different objects, all with different masses, are initially at rest at the bottom of a set of steps. each step is of uniform height . the mass of each object is a multiple of the base mass : object 1 has mass 4..00m , object 2 has mass 1..96m , and object 3 has mass . when the objects are at the bottom of the steps, define the total gravitational potential energy of the three-object system to be zero. if the objects are then relocated as shown, what is the new total potential energy of the system? each answer requires the numerical coefficient to an algebraic expression. each algebraic expression is given using some combination of the variables , , and , where is the acceleration due to gravity. enter only the numerical coefficient. (example: if the answer is 1..23mgd , just enter 1.23)

Answers: 3

Answer

Physics, 22.06.2019 05:00

Unpolarized light falls on two polarizer sheets whose transmission axes are at right angles. a third polarizer is placed between the first two so that its axis makes a 52-degree angle with the axis of the first polarizer. a) what fraction of the incident light intensity is transmitted through the first polaroid? b) what fraction of the incident light intensity is transmitted through the second polaroid? c) what is the angle of polarization of the light that enters the third polaroid? d) what fraction of the incident light intensity is transmitted through the third polaroid. e) what happens if the middle polaroid is removed?

Answers: 3

Answer

Physics, 22.06.2019 11:30

Considering only the earth's rotation, determine how much later the asteroid would have had to arrive to put the explosion above helsinki at longitude 25˚ e? this would have obliterated the city.

Answers: 1

Answer

You know the right answer?

Which statement about a signal transduction pathway is true?
a. a signal transduction pathwa...

Questions