Characteristics of Life — Unit test Answers

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

What prohibits lipids from being a readily available energy source?

Which term identifies a light-absorbing pigment?

Sheela wants to demonstrate the importance of photosynthesis to plants and the other living organisms that eat plants. She models the process of photosynthesis that is specifically involved in the production of sugars.Which process in the light-independent reactions of photosynthesis is she modeling?

Chloroplasts have a complex internal structure, as shown in the model below.In which location is glucose formed?

A lab experiment to determine the rate of ATP production and its use in plants is conducted. In the lab, twenty circles cut from plant leaves are placed in a container of water with a light source, which allows photosynthesis to occur. When the rate of ATP production exceeds the ATP use, oxygen is given off by the plant cells, causing the leaf circles to float. Using the graph of data from this experiment, at which point was the light source most likely removed?

Which of the following can combine in a cell to convert a lower-energy molecule into a higher-energy molecule?

What do all cellular activities in living organisms use as a source of energy?

How does adenosine triphosphate (ATP) become adenosine diphosphate (ADP)?

Which statement correctly explains whether more ATP is found in muscle cells or bone cells?

Which is the final electron acceptor in the electron transport chain of cellular respiration?