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  2. MCAT — Full Content Review
  3. Biology: Cells, Organ Systems and Genetics
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MCAT — Full Content Review

Content review across all four MCAT sections: biology, biochemistry, general and organic chemistry, physics, psychology and sociology, plus CARS reasoning vocabulary. Breadth-first recall drilling for pre-med candidates.

Medicine
PShared by Priya Nair
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Biology: Cells, Organ Systems and Genetics

Organelles and their jobs, the cell cycle and meiosis, Mendelian and population genetics, and the physiology of the major organ systems.

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Content

57 total questions

MCQ: 15
Fill-in: 12
Flashcards: 22
Pair match: 8
Biology: Cells, Organ Systems and Genetics – Flashcards
Flashcards

Card #1

Which organelle is the site of oxidative phosphorylation?

Card #2

What is the function of the rough endoplasmic reticulum?

Card #3

During which phase of the cell cycle is DNA replicated?

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Biology: Cells, Organ Systems and Genetics – MCQ
Multiple Choice Questions
  1. 1. Which feature is found in prokaryotic but not eukaryotic cells?

    • A 70S ribosome
    • A nuclear envelope
    • Membrane-bound mitochondria
    • Linear chromosomes capped by telomeres
  2. 2. A cell is placed in a hypertonic solution. What happens?

    • Water leaves the cell and it shrinks
    • Water enters the cell and it swells
    • Solute diffuses inward until concentrations equalise, with no net water movement
    • Nothing, because the plasma membrane is impermeable to water
  3. 3. Crossing over between homologous chromosomes occurs during which stage?

    • Prophase I of meiosis
    • Metaphase II of meiosis
    • Anaphase of mitosis
    • S phase of interphase
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Biology: Cells, Organ Systems and Genetics – Fill-in-the-blank
Fill in the Blank
  1. 1. DNA replication occurs during ___ phase of the cell cycle.

    Answer:Salso: S phase, synthesis

    Hint: One letter

  2. 2. In a monohybrid cross between two heterozygotes, the expected genotypic ratio is 1:2:___.

    Answer:1also: one

    Hint: Complete the ratio

  3. 3. The enzyme that unwinds the DNA double helix at the replication fork is ___.

    Answer:helicasealso: DNA helicase

    Hint: It breaks the hydrogen bonds between base pairs

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Biology: Cells, Organ Systems and Genetics – Pair match
Pair Match
Lysosome↔Hydrolytic degradation of macromolecules at acidic pH
Golgi apparatus↔Modifies, sorts and packages proteins for shipping
Smooth endoplasmic reticulum↔Lipid and steroid synthesis; detoxification
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