- The region of an enzyme to which a substrate binds is called the __________ site.A.substrateB.activeC.enzymaticD.conformationalE.denatured
- A proposed explanation for an observation is a/ an
- Which one of the following is true?A.An enzyme's function depends on its three-dimensional shape.B.Enzymes work generally on a broad range of substrates.C.Enzymes are used up in chemical reactions.D.Enzymes emerge changed from the reactions they catalyze.E.An enzyme binds to its substrate at the enzyme's substrate site.
- __________ is a phenolic compound found in plant cells.A.AmylaseB.BenzoquinoneC.CatecholD.ATPE.Chlorophyll
- Enzymes are usually __________.A.fatsB.steroidsC.monosaccharidesD.proteinsE.phospholipids
- Hypothesis testing must always involve experimentation (T/F)
- Science requires that hypothesis be testable and
- _____takes place when a molecule that is structurally similar to the substrate for a particular reaction completes for a position at the active site on the enzyme
- According to the induced fit hypothesis of enzyme catalysis, which of the following is correct?A.The binding of the substrate depends on the shape of the active site.B.Some enzymes change their structure when activators bind to the enzyme.C.A competitive inhibitor can outcompete the substrate for the active site.D.The binding of the substrate changes the shape of the enzyme's active site.E.The active site creates a microenvironment ideal for the reaction.
- Enzymes increase the rate of a reaction by __________.A.increasing the temperature of the substratesB.contributing electrons to the reactionC.contributing water to the reactionD.decreasing activation energyE.changing the pH of the substrates
- Conducting research without a preconceived hypothesis is calledA.discovery-based science.B.the scientific method.C.hypothesis testing.D.a control experiment.E.none of the above.
- Which of the following are multi-cellular, possess a cell wall, and are non-photosynthetic? a. Archaea b. Bacteria c. Plants d. Animals e. Fungus
- A researcher predicts that chemical X will make plants grow taller, and designs an experiment to test the prediction. This prediction can be classified as a/an __________. a. Observation b. Dependent variable c. Independent variable d. Hypothesis e. Theory
- The forelimbs of humans, dolphins and bats have different functions but all have a similar structural makeup. The forelimbs of these animals are examples of __________. a. Evolutionary structures b. Analogous structures c. Homologous structures d. Vestigial structures
- Which of the following would be an example of horizontal evolution? a. Genes being passed from mother to fetus b. Bacteria acquiring resistant genes from the environment c. Fitter individuals passing on their genes to offspring d. All of the above are vertical
- Which of the following is in the correct order? a. Domain, Kingdom, Phylum, Class, Order, Family, Genus, Species b. Species, Phylum, Kingdom, Order, Class, Family, Genus, Domain c. Genus, Species, Family, Phylum, Order, Domain, Kingdom, Class d. Domain, Kingdom, Order, Phylum, Class Family, Genus, Species
- All of the populations of different species living in one area would be categorized as a/an __________. a. Genus b. Ecosystem c. Community d. Genome e. Biosphere
- The genes for GFP do not glow, but if these genes are inserted into a cell the cell glows under UV light. How does this occur? a. Gene products can glow. b. The cell expresses the genes. c. The genes are incorporated into the genome. d. GFP is made by the cell. e. All of the above
- A bird on a cold night shivers to maintain its body temperature. What property of life does this example represent? a. Sensitivity b. Homeostasis c. Order of complexity d. Cellular organization e. Evolutionary adaptation
- Viruses are not considered living organisms because __________. a. They are composed of proteins and nucleic acids b. They cannot reproduce without a host cell c. They are not capable of changing over time d. Viruses are considered very basic living organisms