Unit 1 Review: Nature of Science, Chemistry of Life & Macromolecules
Quiz by Catherine Tate
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26 questions
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- Q1Which of the following best describes the scientific method?A collection of facts about the natural world.A systematic approach to asking and answering questions about the natural world.A belief system based on faith in scientific knowledge.A set of rules that scientists must follow.30s
- Q2What is the purpose of a control group in a scientific experiment?To collect subjective data.To provide a baseline for comparison and to minimize the effects of confounding variables.To introduce a new variable and observe its effects.To manipulate the independent variable.30s
- Q3Which of the following is a fundamental characteristic of a scientific theory?It is a guess or speculation without any evidence.It is based on substantial evidence and explains a wide range of phenomena.It is based on personal opinions or beliefs without any empirical support.It is a statement of fact that has been proven beyond doubt.30s
- Q4What is the difference between a hypothesis and a theory in scientific research?A hypothesis is an opinion, while a theory is a collection of facts.A hypothesis is a well-substantiated explanation for a wide range of phenomena based on extensive evidence, while a theory is a testable explanation for a specific observation.A hypothesis is a testable explanation for a specific observation, while a theory is a well-substantiated explanation for a wide range of phenomena based on extensive evidence.A hypothesis is a proven fact, while a theory is a speculative guess.30s
- Q5What is the purpose of a hypothesis in scientific research?To propose a testable explanation for a specific observation or phenomenon.To collect qualitative data.To manipulate the dependent variable.To prove a theory with empirical evidence.30s
- Q6Which variable is intentionally manipulated or changed by the researcher in a scientific experiment?Random variableIndependent variableControl variableDependent variable30s
- Q7Which variable is measured or observed in a scientific experiment?Dependent variableControl variableRandom variableIndependent variable30s
- Q8In a controlled experiment, which variable remains constant or unchanged?Random variableDependent variableIndependent variableControl variable30s
- Q9Which variable is the factor that is considered to have a causal effect on the dependent variable in a scientific experiment?Control variableIndependent variableRandom variableDependent variable30s
- Q10Which of the following is an example of qualitative data?The height of participants in a basketball game.The description of a person's emotions during a therapy session.The number of hours spent studying for an exam.The temperature recorded at different times of the day.30s
- Q11Which of the following is an example of quantitative data?The reasons behind customer satisfaction.The opinions of individuals about a new product.The number of cars sold in a month.The description of a painting's colors and textures.30s
- Q12Which of the following is NOT a macromolecule found in living organisms?ProteinNucleic acidLipidChlorophyll30s
- Q13Which of the following is the smallest unit of life?CellOrganelleTissueOrganismMuscle30s
- Q14Which of the following is a macromolecule?SaltProteinWaterOxygen30s
- Q15Which macromolecule is the main source of energy for living organisms?CarbohydratesNucleic acidsProteinsLipids30s