Unit Test — Unit test Answers

To which substance does ferredoxin transfer an electron?

Which process connects glycolysis and the citric acid cycle?

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?

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 best defines homeostasis?

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?

Which speeds up the reaction between carbon dioxide and RuBP to restart the Calvin Cycle?

After Frida stops exercising, she continues to breathe heavily. What is most likely occurring in her body?

In what way are the light-dependent and light-independent reactions of photosynthesis similar?

Which organelle breaks down sugar molecules that supply energy to 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?

What role do nerve cells play in the human body?

Which type of cells are the least limited in differentiation?

Which statement best distinguishes an observation from an inference?

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

Which specific process in the light-dependent reactions produces oxygen and hydrogen ions?

Which is an example of how stem cells are currently being used?

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?

Stella wants to test the hypothesis “If carbon dioxide levels increase, the growth rate of sunflowers will increase.” She places five young sunflower plants into similar containers and sets up pumps that release different amounts of carbon dioxide into each container. She plans to measure the daily height of the plants for two weeks and graph the data. Which option would allow Stella to set up a control group for the experiment?