Cumulative Exam — Cumulative exam Answers

Which is an example of a lipid?

Which substance is a compound?

Which conversion is the result of aerobic cellular respiration?

What is the next step in the process after a substrate enters the active site of an enzyme?

Which element is most important for adding strength to hair, feathers, and outer skin?

During which stage of cellular respiration is glucose broken down into two molecules of pyruvic acid?

Two animals that can be found at the Grand Canyon include the Abert’s and Kaibab squirrels. The Abert’s squirrel is found at the south rim of the canyon and in a few surrounding states. The Kaibab squirrel, however, can only be found at the canyon’s north rim, mainly on the Kaibab Plateau. The Kaibab squirrel is not found anywhere else in the world. Scientists believe that the squirrels are actually closely related and have developed separately as a result of geographic isolation. It is possible that the squirrels were separated by plateau erosion that separated the forests and isolated the Kaibab population. Some scientists are studying if the squirrels are now two separate species or if the Kaibab squirrel is simply a subspecies of the Abert’s squirrel. Separate species are unable to reproduce with each other. Which evidence would be used to support the claim that the squirrels are two separate species?

Drinking too much water during exercise can cause a condition in which the concentration of sodium in the blood is lower than normal. What immediate response would the blood cells have in this condition?

The vertebrae are the irregularly shaped bones that make up the spine. To which skeletal system do the vertebrae belong?

Which organisms are prokaryotes?

How does the cell wall protect a plant cell?

Which factor can decrease the rate of a chemical reaction?

Which best describes what happens to ATP during photosynthesis?

Katie wants to make ball-and-stick models of the four macromolecules. She has colored balls for each of the elements in these molecules, including the following. red: hydrogen black: carbon purple: oxygen green: nitrogenIn which macromolecule will she use the black, red, and purple balls in a ratio of 1:2:1?

What is the purpose of controlling the environment when testing a hypothesis?

Look at the picture below.What macromolecules make up most of the structure that is shown?

Some theories are developed from repeated testing of a single hypothesis. Cell theory, germ theory, and the theory of evolution all have developed from the testing of multiple related hypotheses. Which statement best explains why some theories develop this way?

Which organisms in the chart can produce ATP by photosynthesis?OrganismCells contain chloroplastsAlgaeXAmoebas Mushrooms Oak treesXBermuda grassX

Unlike the methods of early scientists, how did Sir Francis Bacon believe basic laws of science should be determined?

If a factory represents a cell, which organelle is most similar to the packaging and shipping department of the factory?