Which statements accurately describe channel proteins? Select all that apply.

They work like a tunnel that allows certain substances to pass through the membrane.
They are best suited for the transport of smaller substances like ions.
They can transport molecules in either direction, depending on the concentration.
They use the energy in ATP to move substances from one side of the membrane to the other.

Students commonly confuse saccharomyces cerevisiae and staphylococcus aureus when viewed on a microscope slide how could you microscopically differentiate

4. multiple crosses were made between true-breeding lines of black and yellow labrador retrievers. all the f1 progeny were black. when these progeny were intercrossed, they produced an f2 consisting of 91 black, 39 yellow and 30 chocolate. a. propose an explanation for the inheritance of coat color in labradors. b. propose a biochemical pathway for coat color determination and indicate how the relevant genes control coat coloration.

Under capitalism, the allocation of goods and services is determined by consumers. the government. businesses. free market forces.