Unit Test — Unit test Answers

Which refers to the maintenance of a stable internal environment despite changing external conditions?

Which best describes stem cells?

Which structure will form when a primitive cell engulfs an aerobic bacterium?

Which organelles are not found in plant cells?

Which organelle can be compared to a security guard who decides whom may enter a building and whom may not?

Which level of organization falls directly after the tissue level when listed in order from least to most complex?

Which organ systems work together to help the body shiver in order to maintain homeostasis?

Which is a function of the cell membrane?

An animal cell (left) and a plant cell (right) are shown.Which organelle, labeled X in the diagram, is found in both plant and animal cells?

The data in the graph are the result of a paramecium being placed in a hypertonic salt solution.Based on the data in the graph, which would most likely happen if the paramecium were placed in distilled water?

A patient is in need of hydration. Which type of solution are the patient’s cells most likely in?

According to the endosymbiotic theory, which cellular process was involved in the evolution of mitochondria and chloroplasts?

Shannon is making a Venn diagram to organize the characteristics of cell walls and cell membranes. Which pair of characteristics both belong in the two areas of the Venn diagram that do not intersect?

The table lists some organelles and functions. Only one pair is correctly matched.Functions of OrganellesOrganelleFunctionNucleusDirects cell activityEndoplasmic reticulumBreaks down sugar molecules to supply energyGolgi apparatusSupports and protects organelles in the cellLysosomeProduces proteins for the cellWhich organelle in the table is correctly matched with its function?

The body obtains sugar from food. Which system most directly affects blood sugar levels?