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ACT Science Prep: Biology, Chemistry, and Physics - Key Concepts and Definitions, Exams of Biology

A concise overview of key concepts and definitions relevant to the act science section, covering biology, chemistry, and physics. It includes definitions of terms like gametes, genes, alleles, atp, and various scientific principles. The document serves as a quick reference guide for students preparing for the act science exam.

Typology: Exams

2024/2025

Available from 03/11/2025

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wallen-smith 🇺🇸

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ACT science prep (biology, chemistry, physics) | Actual
Questions and Answers 100% Correct| Latest Update
2025
Gametes ✔✔sex cells
Gene ✔✔Combination of alleles
Allele ✔✔Piece of a gene
ATP ✔✔energy
amino acids ✔✔proteins
Starch ✔✔Sugar
Endotherms ✔✔warm blooded
Ectotherms ✔✔cold blooded
Radiation ✔✔Energy transmitted without contact between objects (usually in rays, waves, or particles)
Convection ✔✔Energy transferred through fluids
Conduction ✔✔energy transferred by direct contact of two objects
Osmosis ✔✔Water moves to equalize concentration
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ACT science prep (biology, chemistry, physics) | Actual

Questions and Answers 100% Correct| Latest Update

Gametes ✔✔sex cells Gene ✔✔Combination of alleles Allele ✔✔Piece of a gene ATP ✔✔energy amino acids ✔✔proteins Starch ✔✔Sugar Endotherms ✔✔warm blooded Ectotherms ✔✔cold blooded Radiation ✔✔Energy transmitted without contact between objects (usually in rays, waves, or particles) Convection ✔✔Energy transferred through fluids Conduction ✔✔energy transferred by direct contact of two objects Osmosis ✔✔Water moves to equalize concentration

hypertonic solution ✔✔More concentrated solution hypotonic solution ✔✔Less concentrated solution isotonic solution ✔✔Two solutions with same concentration dominant allele ✔✔capital letter in Punnett square recessive allele ✔✔lowercase letter in Punnett square Heterozygous ✔✔Two different alleles (ex. Tt) Homozygous ✔✔two of the same alleles (ex. TT or tt) Vertebrates ✔✔have a backbone invertebrates ✔✔no backbone Freezing point of water ✔✔0 degrees Celsius and 32 degrees Fahrenheit boiling point of water ✔✔100 degrees Celsius and 212 degrees Fahrenheit Solubility ✔✔the ability of one substance to dissolve in another Acidic pH ✔✔less than 7 Basic pH ✔✔greater than 7

Charge ✔✔Difference in number of electrons conductor ✔✔Low resistance materials (easy flow of electrons) Insulators ✔✔high resistance materials (little or no flow of electrons)