CAMPBELL BIOLOGY EXAM 1 CORRECT 100%

CAMPBELL BIOLOGY EXAM 1
CORRECT 100%

Scientific method: - ANSWER1) Observation
2) Question
3) Hypothesis
4) Design an experiment
5) Prediction
6) Do experiment/collect data
7) Analyze data

What 4 elements make up 96% of living matter? - ANSWERCarbon, hydrogen,
oxygen, nitrogen

Atomic Number - ANSWERNumber of protons in the nucleus

Acid - ANSWERAny substance that increases the H+ concentration of a solution

Base - ANSWERAny substance that reduces the H+ concentration of a solution

Acid pH: - ANSWERpH<7

Base pH: - ANSWERpH>7

4 classes of Macromolecules: - ANSWERCarbohydrates, Lipids, Proteins, Nucleic
Acids



Mass Number - ANSWERSum of protons and neutrons

Isotopes - ANSWERDifferent number of neutrons

Radioactive isotope - ANSWERdecay spontaneously, giving off energy

Valence Electrons - ANSWERfound in outermost shell (valence shell)

Covalent Bond - ANSWERshared electrons

Ionic bond - ANSWERstrip electrons from their bonding partners

Hydrogen bond - ANSWERBond two hydrogen

Solution - ANSWERliquid that is completely homogenous mixture of substances

Solvent - ANSWERDissolving agent in a solution