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Practice Quiz Key #1: The Cell

Practice Quiz Key #1: The Cell

Practice Quiz Key #1: The Cell

If you guys have questions just leave a comment, your comment will be kept private if preferred, and I will then post a public response to your question.

The Plasma Membrane

T or F

1.)   The plasma membrane is selectively permeable, meaning that it allows some substances to pass through and not others. True

2.)   Pumps that maintain concentration gradients utilize kinetic energy, and have no need for ATP. False

3.)   Ions are driven into and out of the cell by concentration gradients only, electrical gradients play no role in ion movement. False

Multiple Choice

4.)   Which ion plays the largest role in maintaining the resting membrane potential?

  1. Potassium
  2. Chloride
  3. Calcium
  4. Sodium

5.)   Which direction will water flow when a cell is placed in a hypertonic solution

  1. A net movement of water out of the cell
  2. A net movement of water into the cell
  3. An equal movement of water into and out of the cell
  4. None of the above

The Cytoplasm

Multiple Choice

6.)   Which of the following organelles contains its own DNA

  1. Rough ER
  2. Peroxisomes
  3. Mitochondrion
  4. All of the above

7.)   Which is a non-membranous organelle?

  1. Mitochondrion
  2. Rough ER
  3. Ribosome
  4. None of the above

8.)   Which cytoskeletal structure has the greatest diameter?

  1. Microfilament
  2. Intermediate Filament
  3. Microtubule
  4. All have equal diameters

9.)   Which of the following detoxifies alcohol and neutralizes free radicals?

  1. Lysosomes
  2. Smooth ER
  3. Peroxisomes
  4. Centrioles

10.) Which organelle might be highly developed in a cell that exports large amounts of proteins?

  1. Golgi Apparatus
  2. Lysosomes
  3. Centrosome
  4. Smooth Endoplasmic Reticulum

The Nucleus

11.) During which phase, might we expect that the nuclear membrane will be absent?

  1. Interphase
  2. Mitotic Phase
  3. Never

12.) Which event occurs within the nucleus?

  1. mRNA Transcription
  2. Translation
  3. Cellular digestion
  4. Production of plasma membrane

13.) Which structure(s) is responsible for producing ribosomes?

  1. Nuclear pores
  2. Nucleoli
  3. Chromatic
  4. Nucleosome

14.) What is the functional unit of DNA?

  1. Histone
  2. Nucleosome
  3. Chromosome
  4. None of the above

15.) In anaphase the sister chromatids have split and are now called _____________

  1. Chromosomes
  2. They are still Chromatids
  3. Centromeres
  4. Centrioles

16.) During which phase are the sister chromatids aligned along the cells equator?

  1. Prophase
  2. Anaphase
  3. Metaphase
  4. Telophase

17.) Which mitotic spindle structures are responsible for pushing the centrioles to the poles of the dividing cell?

  1. Kinetochore Microtubules
  2. Polar Microtubules
  3. Polar Microfilaments

One comment on “Practice Quiz Key #1: The Cell

  1. Pingback: The Cell, Tissues, Integumentary system, and Skeletal Tissues Study Guide | A & P Source

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This entry was posted on September 22, 2013 by in A & P Practice Quizes and tagged , , , , , , , .
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