If an animal cell suddenly lost the ability to produce gtp, what might happen to its signaling system? a.)it would not be able to activate and inactivate the g protein on the cytoplasmic side of the plasma membrane. b.)it would be able to carry out reception and transduction but would not be able to respond to a signal. c.)it would use atp instead of gtp to activate and inactivate the g protein on the cytoplasmic side of the plasma membrane. d.)it would employ a transduction pathway directly from an external messenger.

Sally and sue were investigating the topic of friction in science. they used a small car and a ramp as seen in the picture to test what they were learning. they knew that they slipped easily on waxed floors but not on carpet, so they decided to change the material on the surface of the ramp to see what happened. they planned to use glass, carpet, aluminum foil, and sandpaper and run the car down the ramp over each surface. what would be the best research question to guide the girls' experiment? a) does the amount of surface area affect the friction on the moving car? b) will the car travel fastest on the glass surface? c) how does the angle of the ramp affect the speed of the car? d)do rougher surfaces tend to create more friction than smooth surfaces?

One of the purposes of transcription is to produce a sequence of bases that

Why do leaves change color in the fall? green pigments break down and no longer mask the color of chlorophyll. chlorophyll breaks down and no longer masks the colors of other pigments. red- and yellow-colored pigments grow and mask green-colored chlorophyll. green-colored chlorophyll breaks down and turns red and yellow.