Unit Test Answers

Which best describes the cell theory?

A magnifying glass is an example of which type of microscope?

Which organelle breaks down sugar molecules that supply energy to the cell?

Which organelle makes the proteins that are needed by the cell?

The endosymbiotic theory provides an explanation for the origin of chloroplasts. Which trait of chloroplasts supports this explanation?

In the study of cancer, researchers have used different types of cells, different environmental conditions, and different experimental designs. But, all researchers have arrived at the same conclusion. What does this say about the conclusion?

The role of the cell membrane is most like the job of which person?

A scientist discovers a cell that has chloroplasts, cytoplasm, DNA, and a cell membrane. Which statement best describes how the cell could be classified?

A poison placed on the tips of darts by natives of the Amazon rainforest paralyzes prey such as small mammals. Which of the prey's cells are most likely affected by the poison?

How would the contractile vacuole of a freshwater amoeba respond if the organism was placed in seawater?

Which structure is found in the cytoplasm of a prokaryotic cell, but is not found in the cytoplasm of a eukaryotic cell?

The table lists some organelles and functions. Only one pair is correctly matched.Functions of OrganellesOrganelleFunctionChloroplastStores water and waste materialsCell wallSupports cell membrane, maintains cell shape, and protects cellCell membraneBreaks down waste materials and debrisVacuoleProduces proteins for the cellWhich organelle in the table is correctly matched with its function?

Consider this animal cell.Which organelles are labeled G?

Which specialized cell type would be found lining the trachea, the part of the body that brings air to the lungs?

Which specialized cells are responsible for transmitting messages throughout the body?

The data in the table were recorded during an investigation in which a paramecium was placed in a hypertonic salt solution. If this data is shown in a bar graph, which description accurately represents the bars?

Who first recognized the cell as the universal unit of life?

Which statement is one component of the cell theory?

Which best defines homeostasis?

How is mitochondrial DNA (mtDNA) typing used in forensic science?

Which series lists the stages of development in the gestational process in order, from beginning to end?

Consider this plant cell.Which organelle is labeled E?

How does the contractile vacuole in a single-celled organism function to maintain homeostasis?

Which organelle packages and distributes proteins that are received from the endoplasmic reticulum?

The data in the graph are the result of a paramecium being placed in a hypertonic salt solution.What change would most improve the usefulness of the graph?