Unit Test Answers

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

Which best describes the cell theory?

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

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

Which best defines homeostasis?

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

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

Consider this animal cell.Which organelles are labeled D, and what is one feature that distinguishes them from the other labeled organelles?

A scientist is comparing the outer layer of an onion cell to the outer layer of a human skin cell. What is unique about the outer layer of the onion cell compared to the skin cell?

Consider this animal cell.Which organelles are labeled G?

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

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

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

Which statement is one component of the cell theory?

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

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

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?

Suppose that a patient is diagnosed with a new disease caused by the buildup of waste material in the body’s cells. Which organelle is most likely malfunctioning in the patient’s cells?

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?

Which homeostatic process requires energy to move particles across the plasma membrane?

Which statement about the cell membrane is true?

Consider this plant cell.Which organelle is labeled I?

Gina is studying a cell under a powerful microscope. The cell does not contain membrane-bound organelles.Which cell is Gina most likely studying?

Which is a part of the cell theory?

Which adaptation helps polar bears maintain a constant internal temperature (thermal homeostasis) in cold weather?