Atomic structure — components?
Protons, neutrons, electrons
Scientific method steps
Observation, hypothesis, experimentation, analysis, conclusion.
Chemical bonds — types?
Ionic, covalent, hydrogen bonds
SI units for mass and length
Meter (m) and kilogram (kg).
Water properties — key feature?
High specific heat and cohesion
Atomic number — definition?
Number of protons; defines the element.
Ionic vs covalent bonds — difference?
Ionic: transfer electrons; covalent: share electrons.
Water's high specific heat — importance?
Buffers temperature changes.
pH scale — acids, bases, neutral
Acids <7, neutral=7, bases >7.
Organic molecules — examples?
Carbohydrates, lipids, proteins, nucleic acids.
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1. What is the primary purpose of the scientific method in biological research?
2. What is the primary role of hydrogen bonds in biological molecules?
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