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What is the first thing a student should do if an accident happens during a science experiment?
What is the first thing a student should do if an accident happens during a science experiment?
Which device is used to determine the volume of a liquid?
Which device is used to determine the volume of a liquid?
Which is a primary function of a vacuole in a cell?
Which is a primary function of a vacuole in a cell?
What determines the function of a specialized cell?
What determines the function of a specialized cell?
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This diagram shows a red blood cell in a beaker that contains a solution with a higher salt concentration than that inside the red blood cell. What will happen to the red blood cell in this environment?
This diagram shows a red blood cell in a beaker that contains a solution with a higher salt concentration than that inside the red blood cell. What will happen to the red blood cell in this environment?
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During which phase of the cell cycle does most cell growth occur?
During which phase of the cell cycle does most cell growth occur?
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This diagram represents a closed terrarium exposed to sunlight. What must happen for the carbon cycle to continue in this terrarium?
This diagram represents a closed terrarium exposed to sunlight. What must happen for the carbon cycle to continue in this terrarium?
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In nature, which type of behavior causes animals to produce aggressive displays and sounds?
In nature, which type of behavior causes animals to produce aggressive displays and sounds?
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What will most likely occur if the population of the world continues to increase at predicted rates?
What will most likely occur if the population of the world continues to increase at predicted rates?
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What will most likely happen if a nonnative species is introduced into a stable ecosystem?
What will most likely happen if a nonnative species is introduced into a stable ecosystem?
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Why must DNA replication have to occur before a cell can divide by mitosis?
Why must DNA replication have to occur before a cell can divide by mitosis?
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A section of DNA has these bases: TAG CAG TAC. Which mRNA sequence is produced from this DNA section?
A section of DNA has these bases: TAG CAG TAC. Which mRNA sequence is produced from this DNA section?
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Which process can occur in both mitosis and meiosis?
Which process can occur in both mitosis and meiosis?
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How do some chemicals increase the risk of a person getting cancer?
How do some chemicals increase the risk of a person getting cancer?
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What is the difference between the DNA of a dog and the DNA of a fly?
What is the difference between the DNA of a dog and the DNA of a fly?
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Which would be a desirable trait scientists may want to create in a transgenic plant?
Which would be a desirable trait scientists may want to create in a transgenic plant?
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Which substance do biochemists often search for in fossils to help better understand the evolutionary relationships of the organism that formed the fossil?
Which substance do biochemists often search for in fossils to help better understand the evolutionary relationships of the organism that formed the fossil?
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Scientists believe that the polar bear in Alaska and the brown bear in Russia evolved from a common ancestor. Which would be responsible for this evolutionary change?
Scientists believe that the polar bear in Alaska and the brown bear in Russia evolved from a common ancestor. Which would be responsible for this evolutionary change?
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What is the basis for the earliest classification system of organisms?
What is the basis for the earliest classification system of organisms?
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Waxes create a waterproof layer on the outside of some living organisms. To which group of organic molecules do waxes belong?
Waxes create a waterproof layer on the outside of some living organisms. To which group of organic molecules do waxes belong?
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Which best summarizes the role of DNA in the production of proteins?
Which best summarizes the role of DNA in the production of proteins?
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A student noticed that the freshwater plant, Elodea, produced bubbles when placed in direct light. What could the student most likely conclude?
A student noticed that the freshwater plant, Elodea, produced bubbles when placed in direct light. What could the student most likely conclude?
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Plant cells are able to produce their own food. This process happens in which structure?
Plant cells are able to produce their own food. This process happens in which structure?
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These diagrams show a variety of cells from the same organism. How can cells from the same organism have such different shapes and functions?
These diagrams show a variety of cells from the same organism. How can cells from the same organism have such different shapes and functions?
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Which statement best explains how sweating during exercise maintains homeostasis?
Which statement best explains how sweating during exercise maintains homeostasis?
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The chemical colchicine disrupts cell division. Which cell process would most likely stop if colchicine were added to a culture of human liver cells?
The chemical colchicine disrupts cell division. Which cell process would most likely stop if colchicine were added to a culture of human liver cells?
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Which statement best explains why animals are considered heterotrophic?
Which statement best explains why animals are considered heterotrophic?
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In some ecosystems, wolves have been eliminated due to their threats to humans. How can the reintroduction of wolves benefit the ecosystem?
In some ecosystems, wolves have been eliminated due to their threats to humans. How can the reintroduction of wolves benefit the ecosystem?
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What will most likely be the result as humans move into new areas, forests are clear cut and housing developments are built?
What will most likely be the result as humans move into new areas, forests are clear cut and housing developments are built?
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What activity most contributes to the depletion of the ozone layer?
What activity most contributes to the depletion of the ozone layer?
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Which effect could a mutation in mRNA have on the production of proteins?
Which effect could a mutation in mRNA have on the production of proteins?
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What carries the instructions for making amino acids in a protein?
What carries the instructions for making amino acids in a protein?
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How are mitosis and meiosis similar?
How are mitosis and meiosis similar?
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Genetically identical plants will produce either pink flowers or blue flowers, depending on the type of soil in which they are planted. What is most likely the explanation for the differences in flower color?
Genetically identical plants will produce either pink flowers or blue flowers, depending on the type of soil in which they are planted. What is most likely the explanation for the differences in flower color?
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This diagram shows DNA fingerprints for a child and for four adults. Which adult is most likely a parent of the child?
This diagram shows DNA fingerprints for a child and for four adults. Which adult is most likely a parent of the child?
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Which transgenic organism has been used to clean up oil spills?
Which transgenic organism has been used to clean up oil spills?
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An antibiotic which was effective 20 years ago against a specific type of bacterial infection no longer works against the same kind of infection today. Which best explains why the antibiotic is no longer as effective as it was 20 years ago?
An antibiotic which was effective 20 years ago against a specific type of bacterial infection no longer works against the same kind of infection today. Which best explains why the antibiotic is no longer as effective as it was 20 years ago?
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An insecticide kills most of the ants on a plant. Over time, it is determined that the insecticide is not as effective for killing ants. Which statement best explains this observation?
An insecticide kills most of the ants on a plant. Over time, it is determined that the insecticide is not as effective for killing ants. Which statement best explains this observation?
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Multicellular eukaryotic autotrophs belong to which kingdom?
Multicellular eukaryotic autotrophs belong to which kingdom?
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Salivary amylase is an enzyme in humans that breaks down starches. What substance would humans have difficulty digesting without this enzyme?
Salivary amylase is an enzyme in humans that breaks down starches. What substance would humans have difficulty digesting without this enzyme?
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Which best explains why the rate of a biochemical reaction decreases at high temperatures?
Which best explains why the rate of a biochemical reaction decreases at high temperatures?
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A contractile vacuole helps protists eliminate excess liquid. This is a “pumping” process which reduces pressure inside the cell and prevents the cell from bursting. What is most likely the source of energy for this process?
A contractile vacuole helps protists eliminate excess liquid. This is a “pumping” process which reduces pressure inside the cell and prevents the cell from bursting. What is most likely the source of energy for this process?
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What do both prokaryotic and eukaryotic cells contain?
What do both prokaryotic and eukaryotic cells contain?
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Which of these cells in the human body is specialized to transport oxygen throughout the body?
Which of these cells in the human body is specialized to transport oxygen throughout the body?
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What would most likely be produced when a cell with eight chromosomes undergoes mitosis?
What would most likely be produced when a cell with eight chromosomes undergoes mitosis?
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This diagram shows a Paramecium, a unicellular protist. When a chemical is added to the pond water in which the Paramecium lives, the Paramecium stops moving. Which structure is most likely affected?
This diagram shows a Paramecium, a unicellular protist. When a chemical is added to the pond water in which the Paramecium lives, the Paramecium stops moving. Which structure is most likely affected?
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Which adaptation do ferns, gymnosperms, and angiosperms have that mosses do not have?
Which adaptation do ferns, gymnosperms, and angiosperms have that mosses do not have?
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Which graph best illustrates the growth of a population introduced into an environment with limited resources?
Which graph best illustrates the growth of a population introduced into an environment with limited resources?
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Which will most likely result in a negative growth rate in the human population of a country?
Which will most likely result in a negative growth rate in the human population of a country?
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Why are many farmers encouraged to plant different types of crops on the same land throughout the year?
Why are many farmers encouraged to plant different types of crops on the same land throughout the year?
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During translation, what does the tRNA deliver to the ribosomes?
During translation, what does the tRNA deliver to the ribosomes?
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Which will most likely cause an increase in the frequency of genetic mutations in humans?
Which will most likely cause an increase in the frequency of genetic mutations in humans?
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Having freckles is dominant over not having freckles. If two individuals heterozygous for freckles have a child, what is the probability the child will have freckles?
Having freckles is dominant over not having freckles. If two individuals heterozygous for freckles have a child, what is the probability the child will have freckles?
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Identical twin girls are separated at birth and cared for by two different families. After twenty years, the twins have different heights and weights. What is most likely the cause of these differences?
Identical twin girls are separated at birth and cared for by two different families. After twenty years, the twins have different heights and weights. What is most likely the cause of these differences?
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What is the function of a restriction enzyme?
What is the function of a restriction enzyme?
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Some marine worms and mollusks go through similar larval stages during development. Which can be inferred about their relationship?
Some marine worms and mollusks go through similar larval stages during development. Which can be inferred about their relationship?
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Which statement best describes natural selection?
Which statement best describes natural selection?
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Some scientists claim recent evidence suggests birds should be reclassified to share more taxonomic groups with dinosaurs. What type of evidence would provide the best support for this claim?
Some scientists claim recent evidence suggests birds should be reclassified to share more taxonomic groups with dinosaurs. What type of evidence would provide the best support for this claim?
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This is a dichotomous key for selected arthropods. This diagram shows a caddis fly. To which order does the caddis fly belong?
This is a dichotomous key for selected arthropods. This diagram shows a caddis fly. To which order does the caddis fly belong?
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Which molecules are joined together to make proteins?
Which molecules are joined together to make proteins?
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Which word equation best represents the process of cellular respiration?
Which word equation best represents the process of cellular respiration?
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Study Notes
Biology Released Items - Sample Questions
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Safety in Experiments: The first action a student should take if an accident occurs during a science experiment is to report to the teacher.
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Measuring Liquid Volume: A graduated cylinder is used to determine the volume of a liquid.
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Vacuole Function: A vacuole's primary function in a cell is storage.
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Specialized Cell Function: The function of a specialized cell is determined by the active genes in the cell.
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Red Blood Cell Environment: A red blood cell in a solution with a higher salt concentration than inside the cell will shrink due to the loss of water molecules.
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Cell Cycle Phase: Most cell growth occurs during the interphase phase of the cell cycle.
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Terrarium Carbon Cycle: For the carbon cycle to continue in a terrarium, all organisms must continue to exchange gases.
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Aggressive Animal Behavior: Territoriality is the type of behavior that causes animals to produce aggressive displays and sounds.
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Population Growth and Biodiversity: An increasing human population will most likely lead to a more rapid depletion of natural resources.
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DNA Replication and Mitosis: DNA replication must occur before a cell can divide by mitosis to maintain the same number of chromosomes in the daughter cells as in the parent cell.
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mRNA Sequence from DNA: If a section of DNA is TAG CAG TAC, the corresponding mRNA sequence is AUC GUC AUG.
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Mitosis and Meiosis: Independent assortment is a process that can occur in both mitosis and meiosis.
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Cancer and Chemicals: Chemicals can increase the risk of cancer by causing cell mutations.
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Dog and Fly DNA Differences: The difference between the DNA of a dog and a fly is the sequence of nucleotides.
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Desirable Trait for Transgenic Plant: Scientists may want to create a transgenic plant with the ability to resist insects.
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Fossil Evidence and Biochemists: Biochemists often search for DNA in fossils to understand evolutionary relationships.
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Evolutionary Change: Geographic isolation is a factor that can be responsible for evolutionary change from a common ancestor such as the polar bear and brown bear.
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Basis of Organism Classification: The basis for the earliest classification system of organisms is evolutionary relationships.
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Waterproof Layer in Organisms: Wax is a lipid that creates the waterproof layer on the outside of some living organisms.
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DNA Role in Protein Production: DNA acts as the instructions to make proteins and it does not move or transport amino acids.
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Bubble Production by Elodea: Bubbles produced by an Elodea plant in direct light indicate the production of oxygen as a result of photosynthesis.
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Plant Food Production Process: Plant cells produce their own food through the process of photosynthesis in the chloroplasts.
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Cell Differentiation: During cell differentiation, different types of cells produce different proteins, which leads to cell specialization.
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Homeostasis During Exercise: Sweating during exercise regulates body temperature, maintaining homeostasis.
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Cell Division Disruption: Colchicine, which disrupts cell division, most likely stops mitosis.
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Animal Heterotrophy: Animals are considered heterotrophic because they obtain nutrients by consuming other organisms or their products, not through photosynthesis.
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Wolf Reintroduction Benefit: Reintroducing wolves to an ecosystem can eliminate weak animals, reducing competition for resources.
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Depletion of Ozone Layer: Release of CFCs is the primary activity that contributes to ozone layer depletion.
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Mutation Effect on Protein: A mutation in mRNA can lead to a different protein identity (different amino acid sequence).
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T-RNA Function: tRNA carries amino acids to the ribosomes to assemble new proteins.
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Flower Color Gene Explanation: Differences in flower color in genetically identical plants are most likely caused by a codominant flower-color gene.
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Parent-Child DNA Correlation: DNA fingerprinting comparisons indicate which adult is most likely a parent of the child.
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Antibiotic Effectiveness Loss: The loss of antibiotic effectiveness is primarily due to the survival and reproduction of resistant bacteria at a greater rate than nonresistant bacteria.
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Insecticide Effectiveness Decrease: The insecticide's decreased effectiveness is likely due to the surviving ants being genetically different from those that died.
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Eukaryotic Autotrophs: Multicellular eukaryotic autotrophs belong to the kingdom Plantae.
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Saliva Enzyme Substance: Humans would likely have trouble digesting carbohydrates without the enzyme amylase.
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Temperature Effect on Biochemical Reactions: At high temperatures, the shape of the enzyme changes, likely because of the loss of hydrogen bonds, impacting reaction rates.
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Cellular Energy Source in Protists: Contractile vacuoles likely use ATP as the energy source for the pumping process.
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Prokaryotic and Eukaryotic Cell Similarities: Prokaryotic and eukaryotic cells both contain cytoplasm.
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Oxygen Transport Cell: Red blood cells transport oxygen throughout the human body.
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Chromosome Number After Mitosis: A cell with eight chromosomes that undergoes mitosis will produce two daughter cells, each with eight chromosomes.
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Paramecium Structure: If a chemical causes a Paramecium to stop moving, structure 2 (cilia) is the most likely target as it's responsible for movement.
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Plant Adaptation: Ferns, gymnosperms, and angiosperms possess vascular tissue, which mosses do not.
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Population Growth Graph: Graph C shows the growth pattern of a population introduced into an environment with limited resources.
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Negative Population Growth: A negative population growth occurs when the death rate is higher than the birth rate.
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Crop Variety Planting: Planting different types of crops on the same land can prevent insects and disease.
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T-RNA and Proteins: tRNA brings specific amino acids to the ribosomes for protein synthesis.
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Genetic Mutation Frequency Increase: Increased exposure to X-rays is most likely to increase genetic mutation frequencies in humans.
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Freckles Inheritance: Two heterozygous parents with freckles have 75% chance of having a child with freckles.
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Twin Differences: The different dietary and physical activity patterns in identical twins may cause them to develop different heights and weights.
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Restriction Enzyme Function: Restriction enzymes cut DNA at specific nucleotide sequences.
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Description
This quiz contains sample questions focusing on key concepts in biology, including safety in experiments, the function of vacuoles, and the cell cycle phases. Test your knowledge on how organisms interact within ecosystems and the behavior of specialized cells. Perfect for reviewing core biology topics before exams.
