GED Test Practice/Topics/Science Life

Science Life practice test: free GED Test Practice questions

Science Life covers 28 questions in the QuizCram bank (9% of all questions), ranking as the fifth biggest domain for the GED Test. Questions are written against the official Original multiple-choice practice questions written from the published GED content areas (GED Testing Service, GED Test Curriculum and Notional Learning, 2022). The real test format is Four subject tests (Language Arts, Math, Science, Social Studies) · each scored 100–200 · 145 to pass each. Try the 2 free sample questions below to test your understanding of these core rules.

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28 questions, the fifth biggest topic. The ring is its size next to the biggest.

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  1. Life science1 of 2

    Which cell structure releases most of the usable energy a cell needs by breaking down glucose?

    The answer

    Answer: C. Mitochondria carry out cellular respiration, the process that breaks down glucose in the presence of oxygen and captures the energy as ATP. That is why cells with high energy needs, such as muscle cells, contain many of them. Ribosomes build proteins, the cell wall gives plant cells structure, and the nucleus stores the genetic instructions.

    Source: GED Science — Life Science: cell structures

  2. Life science2 of 2

    In pea plants, tall (T) is dominant over short (t). If two heterozygous tall plants (Tt × Tt) are crossed, what percent of the offspring are expected to be short?

    The answer

    Answer: B. A Punnett square for Tt × Tt gives four equally likely combinations: TT, Tt, Tt and tt. Only tt plants show the recessive short trait, which is 1 out of 4, or 25%. The other 75% carry at least one T and are tall. The 50% answer is the share of offspring that are heterozygous, not short.

    Source: GED Science — Life Science: Punnett squares

Quick answers on Science Life

QuizCram covers 28 practice questions in the Science Life domain, mapped directly to the official examination blueprint.

The benchmark score is 70% (Four subject tests (Language Arts, Math, Science, Social Studies) · each scored 100–200 · 145 to pass each).

Yes. All questions on QuizCram are written against official handbooks and blueprint specifications with legal citations.