ATP releases energy when ________.

  1. sunlight strikes it

  2. a phosphate is removed

  3. a ribose is added

  4. deoxyribose is added

  5. adenine is removed

Answer:

B

ATP stores energy that can be used in a coupled biological reaction that requires energy. To do this ATP loses the last phosphate group converting the molecule to ADP & P.

Resolving power is

  1. the depth of the specimen clearly in focus.

  2. the optimum power to most clearly view the entire specimen.

  3. the ability to make an object larger.

  4. the focusing mechanism used to bring objects clearly into view.

  5. the ability to tell two points apart as separate points.

Answer:

E

Resolving power is a feature of microscopes that identifies the level available to distinguish separate structures while viewing.

When a cell is in a solution where the concentration of solute is the same in the cell as in the solution, the solution is called ________.

  1. hypertonic

  2. saturated

  3. isotonic

  4. osmotonic

  5. hypotonic

Answer:

C

In isotonic solutions cells neither gain nor lose net water since the concentration of solutes (and therefore water) is the same in the cell as is in the solution.

Mitochondria are found in

  1. plant cells.

  2. both plant cells and animal cells.

  3. neither plant or animal cells.

  4. animal cells only.

  5. animal cells and bacterial cells only.

Answer:

B

Mitochondria are found in both plant and animal cells and used to carry out the work of producing cellular ATP.

Reactions that tend to go on their own, releasing energy, are called

  1. exergonic

  2. productive

  3. catalytic

  4. endergonic

Answer:

A

1