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The Practice of Science
Cellular Biology
Molecular Biology
Organisms, Populations & Ecosystems
Miscellaneous
100
Which of the following is NOT a suitable question on which to base a scientific investigation into transpiration? a. How does wind affect transpiration in bean plant seedlings? b. Which has greater affect on transpiration in bean plant seedlings, humidity or light? c. What condition serves to increase the rate of transpiration in bean plant seedlings? d. Which is more beneficial to bean plant seedlings, photosynthesis or transpiration?
d. What is, "Which is more beneficial to bean plant seedlings, photosynthesis or transpiration?
100
The development of the cell theory was the result of which of the following? a. the work of a series of scientists over many years. b. the invention of the microscope c. the discovery that all plants are composed of cells d. Virchow's idea that cells must come from already existing cells.
What is, a. "the work of series of scientists over many years"
100
What is the name for the net movement of small, uncharged molecules from an area of higher concentration to an area of lower concentration? a. osmosis b. turgor pressure c. diffusion d. facilitated diffusion
What is, d. "diffusion"
100
Which of the following categories includes all the others? a. species b. community c. ecosystem d. population
What is, c. ecosystem
100
A student investigates the ability of yeast to metabolize two kinds of sugar, glucose and lactose. First, yeast and glucose are added to water. Then the released gas is captured and it volume recorded. Next, yeast and lactose are put through the same steps. For best results in this investigation, which variables should be held constant? a. the mass of yeast and the volume of gas b. the water temperature and the volume of gas c. the mass of yeast and the water temperature d. the mass of yeast and the mass of glucose and lactose
What is D. the mass of yeast and the mass of glucose and lactose.
200
When you look at the empirical evidence that relates to an experiment, what are you doing? a. reviewing the direct observations on the subject recorded by others. b. reviewing the various hypotheses on the subject c. predicting the results of the experiment d. planning the experiment so that the results will be meaningful.
What is, a. "reviewing the direct observations on the subject recorded by others."
200
Which of the following best describes a prokaryotic cell? a. small and simple b. large and complex c. mainly multicellular d. composed of distinct organelles
What is, a. "small and simple"
200
Which of the following is an important difference between active transport and passive transport? a. active transport requires proteins for energy b. active transport moves molecules down the concentration gradient. c. passive transport requires proteins for energy d. passive transport employs pumps or carriers to move substances.
What is, A. " active transport requires proteins for energy."
200
About what percentage of the energy available at one trophic level is converted into biomass at the next trophic level? a. 1% b. 10% c. 50% d. 98%
What is b. 10%
200
Which of the following statements is the best comparison of prokaryotes and eukaryotes? a. Prokaryotes are incapable of movement, while eukaryotes use flagella for movement. b. Prokaryotes have many internal membranes and compartments, while eukaryotes have a large central vacuole c. Prokaryotes have few specialized structures, while eukaryotes contain distinct organelles bound by a membrane. d. Prokaryotes have a pliable cell membrane, while eukaryotes have a rigid cell wall.
What is Prokaryotes have few specialized structures, while eukaryotes contain distinct organelles bound by a membrane.
300
A "line of best fit" is drawn on which kind of graph to emphasize a trend? a. bar graph b. scatterplot c. box and whisker plot d. histogram
What is, b. "Scatterplot."
300
In comparing prokaryotic and eukaryotic cells, which of the following is found in both? a. lysosomes b. ribosomes c. vacuoles d. mitochondria
What is, b. "ribosomes".
300
"Cellular eating" is another name for which of the following? a. exocytosis b. plasmolysis c. phagocytosis d. pinocytosis
What is, c. "phagocytosis"
300
What is the usual cause of a harmful increase in the nutrients in a freshwater lake? a. global warming b. runoff of fertilizers and sewage c. loss of biodiversity d. seasonal variations in rainfall
What is b. runoff of fertilizers and sewage.
300
Unlike passive cellular transport, active cellular transport requires energy to function. Which of the following is an example of active transport? a. osmosis b. exocytosis c. diffusion d. facilitated diffusion
What is b. exocytosis
400
The International System of Measurement is the standard of scientific work. What is it based upon? a. the United States Customary System of Weights & Measures b. the Metric System c. the British imperial system d. a combination of the United States system and the metric system
What is, b. "the metric system"
400
With regard to the form and function of cells, which of the following is true? a. All cells look the same, but they have very different functions. b. Cells have a variety of shapes, but they all perform the same functions. c. Cells with different functions have different forms. d. The form of a cell has nothing to do with its function.
What is, c. "the form of a cell has nothing to do with its function."
400
Which of the following best describes the process called endocytosis?
What is, C. "Substances outside the cell are moved into the cytoplasm via a vesicle."
400
Which of the following is NOT one of the ways that the carbon cycle adds CO2 to the air? a. cell respiration b. burning of fossil fuels c. photosynthesis d. decomposition of dead organisms
What is c. photosynthesis
400
The structure of a leaf maximizes which physiological process? a. absorption of water for cell respiration b. absorption of water for transpiration c. exchange of gases for photosynthesis d. manufacture of energy for cell reproduction.
What is C. exchange of gases for photosynthesis
500
Bonus
Bonus
500
Cellular respiration takes place in which part of the cell? a. nucleus b. peroxisomes c. Golgi apparatus d. mitochondria
What is, D. "mitochondria"
500
Which of the following is NOT an example of passive transport? a. diffusion b. facilitated diffusion c. osmosis d. endocytosis
What is, D. "endocytosis."
500
Why does a food chain generally have no more than five trophic levels? a. There is loss of energy at each trophic level. b. There is no way to determine the upper trophic levels. c. Many organisms have multiple food sources. d. The loss of biodiversity has limited the variety of organisms.
What is a. There is a loss of energy at each trophic level.
500
The structure of leaf maximizes which physiological process? a. absorption of water for cell respiration b. absorption of water for transpiration c. exchange of gases for photosynthesis d. manufacture of energy for cell reproduction
What is c. exchange of gases for photosynthesis