J. Salazar Cell Exam

All living things share some characteristics. For example, all organisms -

• A. are made up of one or more cells.

• B. make their own food from sunlight.

• C. have a skeleton to provide support.

• D. emerge, at birth, from some type of egg.

2. Unlike prokaryotic cells, eukaryotic cells have their genetic material centrally located in a -

• A. chloroplast.

• B. vacuole.

• C. lysosome.

• D. nucleus.

3. The role of the mitochondrion is most similar to which of the following descriptions?

• A. A security guard monitoring the entrance and exit of visitors

• B. Steel and iron bars supporting the many levels of a skyscraper

• C. A generator supplying electricity to a hospital building

• D. The mailroom of a business that packages and sends materials

4. A cell was observed under a microscope. A cell wall, a nucleus, and cytoplasm were visible. Which statement is best supported by these observations? The cell is from -

• A. a plant because it contains cytoplasm.

• B. a plant because it contains a cell wall.

• C. an animal because it contains cytoplasm.

• D. an animal because it contains a cell wall.

5. Which material would best represent the cytoplasm in a plant cell model?

• A. A string

• B. A golf ball

• C. Clear jelly

• D. Green candy pieces

6. A scientist counts the number of cells in three separate Petri dishes. The data shown in the table best illustrates which part of the cell theory?

• A. All living things are made of cells.

• B. Cells are the basic unit of living things.

• C. Organisms can be unicellular or multicellular.

• D. All cells come from other cells.

7. In order to classify a cell as prokaryotic or eukaryotic, it must be determined if the cell -

• A. grows larger throughout its life.

• B. can move from place to place.

• C. is able to make copies of itself.

• D. has its genetic material in a nucleus.

8. Which statement about the cell theory is correct?

• A. New cells form from old cells that have died.

• B. Cell organelles are the smallest units of life.

• C. All cells have the same internal structures.

• D. All living things are made up of cells.

9. The cell theory was formulated only after the invention of the microscope. To which aspect of the cell theory did the

microscope first contribute?

• A. All organisms are composed of cells.

• B. All cells perform similar functions.

• C. New cells arise from pre-existing cells.

• D. Only plant cells contain a cell wall.

10. Why do both plant and animal cells contain mitochondria?

• A. Mitochondria are absorbed from the atmosphere by plants and animals.

• B. Animals eat plants and so they absorb the mitochondria inside their cell.

• C. Both plant and animal cells have vacuoles, which produce mitochondria.

• D. Both plant and animal cells need to utilize the energy that mitochondria produce.