BIO 100 Exam 1 ASU

If the diploid body cells in a dog contain contain 78 chromosomes each, how many chromosomes would a dog sperm cell contain? A. 37 B. 39 C. 76 D. 78

39

How do plants metabolize the sugars they produce by photosynthesis? A. By a special pathway unique to plants B. By cellular respiration C. They do not metabolize the sugars; the sugars directly provide the plants with energy. D. By reverse photosynthesis

By cellular respiration

Which of the following statements is false? A. Tissues exist within organs which exist within organ systems. B. Communities exist within populations which exist within ecosystems. C .Organelles exist within cells which exist within tissues. D. Communities exist within ecosystems which exist in the biosphere.

Communities exist within populations which exist within ecosystems.

Eagles and other top predators are most severely affected by biomagnification because they A. Consume prey in which pesticides are concentrated. B. Have rapid reproductive rates C. Are especially sensitive to chemicals. D. Have very long life spans

Consume prey in which pesticides are concentrated.

In hot, dry climates like Arizona, many of the plants have small leaves. This is an adaptation that A. Increases water absorption B. Increases light absorption C. Decreases water loss D. Decreases oxygen absorption

Decreases water loss

Photosynthesis would occurs lowest in a plant with green leaves if it is exposed to which color light for ten minutes? A. Blue light B. Violet light C. Yellow light D. Green light E. Orange light

Green light

What advantage do multicellular organisms have over single-celled organisms? A. Multicellular organisms use less energy. B. In multicellular organisms cells can be specialized to perform specific functions. C. Cells can be sacrificed for the good of the organisms as a whole. D. Both b and c E. Both a and b

In multicellular organisms cells can be specialized to perform specific functions. And Cells can be sacrificed for the good of the organisms as a whole.

In multicellular organisms, dead and damaged cells are replaced by A. Mitosis B. Binary fission C. Meiosis D. Fertilization E. Mutation

Mitosis

Which is the dependent variable? A. Recapture location B. Salmon's ability to smell C. Capture location D. Time out of the water

Recapture location

Which is the independent variable? A. Recapture location B. Salmon's ability to smell C. Capture location D. Time out of the water

Salmon's ability to smell

Which of the following is a prediction? A. Salmons use their sense of smell for navigation B. Salmons with their nose plugged should not be able to find their home stream C. Salmons with their nose plugged were not successful at finding their home stream D. Salmons' ability to smell E. Salmon ability to reach home stream

Salmons with their nose plugged should not be able to find their home stream

When designing an experiment to compare damage to kidneys in those who take analgesics to control groups, what is the dependent variable? A. Use of analgesics B. The manipulated variable C. The measurable damage D. The size of the study group

The measurable damage

Enzymes catalyze the many reactions in a cell. There are hundreds of different enzymes in a cell and each has a unique three-dimensional shape. Why do cells have so many different enzymes? A. Each enzyme molecule can only be used once. B. The shape of an enzyme's active site generally fits a specific substrate. C. The substrate molecules react with enzymes to create new enzymes. D. Enzymes are randomly produced. With thousands of different shapes—one is likely to work

The shape of an enzyme's active site generally fits a specific substrate.