Unit Test Answers

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

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

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

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?

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

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

Consider this animal cell.Which organelles are labeled G?

Which organelle breaks down sugar molecules that supply energy to 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?

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

Which best defines homeostasis?

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?

Which organelle makes the proteins that are needed by the 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?

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?

What is the basic unit of structure and function of all living organisms?

Which best describes the difference between osmosis and diffusion?

Consider this animal cell.Which organelle is labeled I?

Consider this plant cell.Which organelle is labeled A?

Herbicides are being used to kill weeds in a nearby field. The plants absorb the herbicides from the soil. Which organelle in the plant will most likely store the absorbed herbicide waste?

Which statement about the cell membrane is true?

Consider this animal cell.Which organelle is labeled A?

Which organelle captures the energy from sunlight and converts it to chemical energy, and in which cells could it be found?

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

Consider this plant cell.Which organelle is labeled G?