Bio: Module 1 Review

What's the BEST definition of the study of biology?

• finding scientific solutions to human problems

• learning about the interactions and functions of living organisms

• studying the health of living creatures

• studying the creatures of land and sea

What is NOT the main focus of Biology

• interactions & functions of living organisms

• understanding how liviing things work

• the history of life on Earth

• studying evolution & how living things change

Fruit flies are commonly used in genetic investigations that focus on traits passed from parents to offspring over several generations. What can you infer is the reason fruit flies are the most commonly used organism for this type of investigation?

• Scientists prefer to study what has previously been studied.

• Society does not have ethical issues with lab-kept fruit flies.

• Many more generations can be studied using short-lived organisms.

• It's easy and cheap to get fruit flies

Scientific theories are based on strong evidence but they can change over time. What is the BEST reason that scientific theories can change?

• New theories require changes to the scientific process, so the theory changes as a result.

• Scientists are often incorrect in their initial hypotheses, so the theory changes.

• Theories are hypotheses that have gained support and change as the hypothesis changes.

• Scientists argue, re-examine, and consider new explanations to new data.

What must happen for scientific theories to be accepted as valid?

• A hypothesis must be upgraded with supporting experimental evidence.

• Biological manufacturers must conduct clinical trials.

• Scientific evidence must be reported, verified, and accepted by the scientific community.

• Companies have to pay the researchers.

What must happen for scientific theories to be accepted as valid?

• A hypothesis must be upgraded with supporting experimental evidence.

• Scientific evidence must be reported, verified, and accepted by the scientific community.

• Biological manufacturers must conduct clinical trials.

• It must be published on Google

Which answer correctly summarizes the essential elements of a scientific theory?

• Never become laws; based on strong scientific support; may change based on evidence

• Describe the natural world; based on many observations and data; do not explain why

• Eventually become laws; based on many tests and reviews; usually do not change

• Predict and describe; based on observation and logic; formulated before experimentation

Which of the following correctly completes the following equation:

Nitrogenous base + sugar + phosphate group =

• nucleotide

• amino acid

• enzyme

• antibody

Which of the following correctly describes the image to the left?

• Nucleotide

• Amino Acid

• Diseased Cell

• Protein Molecule

Glucose and fructose are monosaccharides that have the same chemical formula, C₆H₁₂O₆. However, they do not chemically react the same. Which of the following generalizations can explain this?

• The atoms of monosaccharides are arranged differently, and the different shape gives each monosaccharide unique properties.

• Monosaccharides have different properties, but the disaccharides they form when combined with other molecules will have the same properties.

• Monosaccharides serve different cellular functions, and they are only involved in reactions in which they are needed.

• The atoms of monosaccharides are arranged similarly, but the monomers from which they are formed have different properties.