Compared to its surroundings, the concentration of solutes is low inside a cell. so, the cell is respect to its surroundings. a particular solute in this cell uses energy for its transport from the cell to its surroundings. this type of transport is called

The correct answer for the fill in the blanks are 1) Hypotonic 2) Active transport.

A cell is considered to be hypotonic with respect to its surroundings if it possesses low concentration of solute inside as compared to its surrounding. In other words, if a cell has higher solvent ( water) concentration inside as compared to outside, then it is called hypotonic.

As the concentration of solute is low inside the cell, the cell would require energy for the transport of a particular solute from inside to outside the cell ( against the concentration). This is a type of active transport.

the answer is:

carbon dioxide