Question

cell physiology
each of the cells internal parts is designed to perform a specific function for the cell. as mentioned earlier, most cells have the ability to metabolize (use nutrients to build new cell material, break down substances, and make atp), digest foods, dispose of wastes, reproduce, grow, move, and respond to a stimulus (irritability). we consider most of these (1.) in detail in later chapters. (for example, we cover metabolism in chapter 14, and the ability to react to a stimulus in chapter 7). in this chapter, we consider only the functions of (2.) transport (the means by which substances get through plasma membranes), protein synthesis, and cell reproduction (cell division). membrane transport the fluid environment on both sides of the plasma membrane is an example of a solution. it is important that you really understand solutions before we dive into an explanation of membrane transport. in the most basic sense, a solution is a (3.) mixture of two or more components. examples include the air we breathe (a mixture of gases), seawater (a mixture of water and salts), and rubbing alcohol (a mixture of water and alcohol). the substance present in the largest amount in a (4.) is called the solvent (or dissolving medium). water is the bodys chief solvent. components or substances present in smaller amounts are called solutes. the solutes in a solution are so tiny that the (5.) cannot be seen with the naked eye and do not settle out.

1 molecules 2 functions 3 membrane 4 homogeneous 5. solution

1 solution 2 molecules 3 functions 4 membrane 5 homogeneous

1 homogeneous 2 solution 3 molecules 4 functions 5 membrane

1 functions 2 membrane 3 homogeneous 4 solution 5 molecules

1 membrane 2 homogeneous 3 solution 4 molecules 5 functions

Explanation:

1. We will consider the functions like metabolism, irritability etc. in detail later, so "functions" fits (1).
2. The text is talking about the means by which substances get through plasma membranes which is "membrane" transport, so "membrane" for (2).
3. A solution is a homogeneous mixture of two or more components, so "homogeneous" for (3).
4. In a solution, the substance in the largest amount is the solvent in a "solution", so "solution" for (4).
5. Solutes in a solution are so tiny that the "molecules" cannot be seen with the naked - eye and do not settle out, so "molecules" for (5).

Answer:

1. functions
2. membrane
3. homogeneous
4. solution
5. molecules