The model shows the active transport of potassium ions (K™) through the cell membrane and into a cell. Which condition requires this transport process to take place?

Answers:

There is no ATP available as an energy source for the cell.

There are no transport proteins available in the call membrane.

The concentration of potassium ions must be higher inside the cell than outside.

The concentration of potassium ions must be higher outside the cell than inside.

A3-year-old child with nephrotic syndrome has been receiving prednisone for 1 week. the nurse reviews the child's progress record and determines that the medication has been effective. what information supports this conclusion? select all that apply.

Cells tend to have a relatively small and uniform size. why aren’t cells larger?

The phylogenetic tree illustrates the relationship between humans and our closest living relatives. the tree was based on biochemical comparisons, including dna and amino acid sequences. according to the biomolecular data, we could infer that a) the four organisms do not have a common ancestor. b) humans are more closely related to chimps than any other apes. c) chimps are more closely related to gorillas than they are to humans. eliminate d) there is no evidence if any relationship between the four branches on the tree.