Which statement is false about a globular protein that performs its biological function as a single independent polypeptide chain?
A) Its tertiary structure is likely stabilized by the interactions of amino acid side chains in non-neighboring regions of the polypeptide chain.
B) It could contain α-helices that are stabilized by hydrogen bonding.
C) It likely has extensive quaternary structure to maintain its globular shape.
D) Non-covalent forces are the primary source of stability for the secondary and tertiary structure.

Coquina, a type of limestone, forms from shell fragments that settle on the ocean floor. what type of rock is coquina?

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?

Which of these transport mechanisms moves glucose from the blood into a cell? active transport diffusion facilitated diffusion osmosis