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- 1. Multiple Choice
A photograph of a virus is shown below.
The projections on the surface of this virus allow the virus to —move inside a host cellattach to a host cellcontrol a host cell’s DNAsignal other viruses to infect a host cell - 2. Multiple ChoiceSurtsey is an island located south of Iceland. The island was formed by a volcanic eruption and first appeared in 1963. The table below contains descriptions of changes in the population and diversity of species on Surtsey
Which of these lists the descriptions in the correct order of ecological succession on Surtsey?I, II, IV, IIIIII, I, II, IVIV, III, I, IIII, IV, I, III - 3. Multiple ChoiceHaving a standard taxonomic system benefits the scientific community by allowing scientists from all over the world to do which of the following?Have a common system for the classification of locations containing fossilsUse a similar system to classify the impact of removing species from ecosystemsHave a common understanding in the classification of organismsUnderstand how other scientists classify predator–prey relationships
- 4. Multiple ChoiceThe technique known as chromosome painting is the result of scientific research. Scientists use chromosome painting to mark the locations of genes on human chromosomes with fluorescent tags. It is also possible to apply this technique to the chromosomes of many different species. Chromosome painting allows for which of the following?A comparison of the genomes of different speciesThe sequencing of proteins from many speciesAn increase in mutations in many speciesThe extraction of amino acids from different species
- 5. Multiple ChoiceWhich of these statements best explains the process of energy conversion that takes place in the mitochondria?Energy is required for carbon dioxide molecules to form six-carbon sugar molecules.Water molecules and radiant energy are necessary for anaerobic respiration to take place.Oxygen molecules release energy in the form of heat during combustion reactions.The energy in the bonds of glucose molecules is transferred to the phosphate bonds in ATP.
- 6. Multiple ChoiceEnzymes are proteins that help increase the rate of chemical reactions inside cells. These proteins are composed of many simpler molecules called amino acids. Which of the following suggests that the shape of an enzyme determines the enzyme’s function?Enzymes are specific to a substrate.Enzymes can operate in a wide range of conditions.Enzymes are activated by neighboring molecules.Enzymes can be found in all life-forms.
- 7. Multiple ChoiceA section of a nucleic acid is shown below.
The process represented in the diagram produces a molecule that is complementary to the template strand of DNA. What type of molecule is produced?New DNApolypeptidemessenger RNAcarbohydrate - 8. Multiple ChoiceIf several pea plants with the genotype T TYy are crossed with pea plants with the genotype Ttyy, what percentage of the offspring will be expected to have the T TYy allele combination?25%40%50%75%
- 9. Multiple ChoiceWhich of the following correctly describes how a diagram of cellular respiration would differ from a diagram of photosynthesis?The cellular-respiration diagram would show electromagnetic waves as the final product.The cellular-respiration diagram would show glucose as the main source of energy.The cellular-respiration diagram would show energy stored in large protein molecules.The cellular-respiration diagram would show water as the main source of chemical energy.
- 10. Multiple ChoiceWhich of the following are missing from the food web shown above?producersdecomposersomnivorespredators
- 11. Multiple ChoiceThe concept of gene flow is demonstrated when a cow is driven off from its herd, joins another herd, and reproduces. When the cow contributes to the gene pool of the new herd, which of these most likely increases?Natural selectiongenetic variationenvironmental fitnessreproductive mutations
- 12. Multiple ChoiceA photomicrograph of onion root tip cells during mitosis is shown below.
Which phase of mitosis is occurring in the cell indicated by the arrow?prophasemetaphaseanaphasetelophase - 13. Multiple ChoiceA model of a DNA molecule is shown below.
The arrow indicates —the bond between adjacent phosphate and deoxyribose moleculesthe junction of introns and exons in the sense strand of DNAthe hydrogen bond between complementary nucleotidesthe junction of a codon and a DNA triplet - 14. Multiple ChoiceA student collected the animal shown below on a field trip. The student used a dichotomous key and a microscope to classify the animal.
How should this animal be classified?ArthropodaAnnelidaMolluscaPlatyhelminthes - 15. Multiple ChoiceA codon chart is shown below.
Which of these changes to the DNA triplet 3’ GCT 5’ will affect the protein produced?GTTTCTTCCGCA - 16. Multiple ChoiceZoogeographic regions are characterized by the presence of specific groups of animals. These regions are determined by the taxonomic or phylogenetic relationships of animals. The map shows the zoogeographic regions proposed by the naturalist Alfred Russel Wallace in 1876.
The similarities of organisms in which two areas numbered above provide the best evidence for common ancestry between the organisms in both locations?1 and 23 and 45 and 67 and 8 - 17. Multiple ChoiceArthropods are joint-legged animals. Spiders, crabs, pill bugs, centipedes, and millipedes are examples of the many types of arthropods. Which of these arthropods are most closely related?Arthropods of the same familyArthropods of the same classArthropods of the same genusArthropods of the same species
- 18. Multiple ChoiceWhich of these best represents a fatty-acid molecule?FGHJ
- 19. Multiple ChoiceThe graph shows the basic changes in a forest community after a disturbance occurred.
The information shown in the graph suggests that the changes in the forest community were caused by —tree-leaf replacement after a stormsuccession after a firerepeated habitat destructiondecreased species diversity - 20. Multiple ChoiceCold sores are caused by the herpes simplex virus type 1. A company that wants to develop antiviral drugs would ask a research immunologist to study —the mechanism used by the virus to infect cellshow closely related the virus is to cold virusesthe metabolism of the virusmeiosis in the virus
- 21. Multiple ChoiceThe limbs of several organisms are shown in the illustrations below. Scientists sometimes compare the limbs of these organisms to look for evidence of common ancestry
These limbs provide evidence of common ancestry because they —have the same basic structureperform the same functionare the same sizeare parts of mammals - 22. Multiple ChoiceA mutation that occurs in the gametes of an organism will most likely be transferred to which of the following?The siblings of the organismThe offspring of the organismThe other organisms living nearbyThe mating partner of the organism
- 23. Multiple ChoiceThe diagram shows taxonomic groups and a major distinguishing characteristic of all but two of them.
Which characteristics will be used to complete the chart?motile/nonmotileautotrophic/heterotrophicnonphotosynthetic/photosyntheticno nucleus/ nucleus - Answer choicesTagsAnswer choicesTags