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Practice Test (Survey of Natural Sciences) Flashcards

7 cards from real DAT practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

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  1. Which organelle is the primary site of ATP production in eukaryotic cells?

    Answer: Mitochondria

    Mitochondria generate most cellular ATP through oxidative phosphorylation.

  2. In glycolysis, glucose is converted into two molecules of which compound?

    Answer: Pyruvate

    Glycolysis splits one glucose into two pyruvate molecules.

  3. What is the hybridization of the carbon atom in carbon dioxide (CO2)?

    Answer: sp

    CO2 is linear with two regions of electron density, giving sp hybridization.

  4. Which of the following is a strong acid?

    Answer: HCl

    Hydrochloric acid fully dissociates in water, making it a strong acid.

  5. During meiosis, genetic diversity is increased by crossing over during which phase?

    Answer: Prophase I

    Homologous chromosomes exchange segments during prophase I.

  6. Which subatomic particle determines the identity of a chemical element?

    Answer: Proton

    The number of protons (atomic number) defines the element.

  7. What type of bond holds the two strands of DNA together?

    Answer: Hydrogen bonds

    Complementary bases pair via hydrogen bonds between the strands.