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GED Cell Structure — practice questions

Explore 22 free Cell Structure questions in GED Science. Open each question or exercise to read its content, reference answers and available explanation.

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Cell Structure questions and exercises with answers

Showing questions 1–22 of 22.

The human body is compared to a brick wall. What plays the part of a single brick?Read the answer and worked solution →A living thing, whether it has one cell or many cells, is called what?Read the answer and worked solution →What is the most effective action anyone can take to prevent the spread of contagious illnesses?Read the answer and worked solution →A prokaryote is a simple, mostly single-celled organism that lacks which structure?Read the answer and worked solution →Which organelles are often called the "powerhouses" or "energy factories" of a cell?Read the answer and worked solution →According to the unified cell theory, where do new cells come from?Read the answer and worked solution →A photograph of cells taken through a microscope is called what?Read the answer and worked solution →A student wants to watch living organisms under magnification. Which instrument suits this best?Read the answer and worked solution →In place of a beam of light, what does an electron microscope send through the specimen area?Read the answer and worked solution →Which cellular structures carry out protein synthesis?Read the answer and worked solution →Which organelle serves as the "garbage disposal" of an animal cell?Read the answer and worked solution →In a plant cell, which organelle carries out photosynthesis?Read the answer and worked solution →What do bacteria use their flagella for?Read the answer and worked solution →The microbes living in the human gut provide which benefit?Read the answer and worked solution →Biting into raw celery produces a crunch. What are your teeth tearing to make that sound?Read the answer and worked solution →While looking through a light microscope, you slide the specimen to the left. Which way does the image appear to move?Read the answer and worked solution →Muscle cells need large amounts of energy to keep the body moving. Which organelle would you expect them to hold in very high concentration?Read the answer and worked solution →A houseplant goes unwatered for several days and wilts. Which structure has shrunk and left the cell walls unsupported?Read the answer and worked solution →Keratin, the protein that strengthens hair and nails, belongs to which group of cytoskeletal fibers?Read the answer and worked solution →One organelle sorts, tags, and packages proteins, then sends them off to their destinations. Which organelle is this?Read the answer and worked solution →Tap the parts that fitRead the answer and worked solution →Call each cell fact true or falseRead the answer and worked solution →

Worked practice questions

The human body is compared to a brick wall. What plays the part of a single brick?

  1. A cell
  2. A bone
  3. An organ
  4. A protein
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Correct answer: A. A cell

1. A brick wall is built from one repeating unit, the brick. 2. The body is likewise built from basic building blocks, and those blocks are cells. 3. Bones and organs are themselves made of many cells, so they are the wall, not the brick. _Source: OpenStax Biology (1st ed., CC BY 4.0), Ch 4 "Cell Structure", section 4.1 Studying Cells_

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A living thing, whether it has one cell or many cells, is called what?

  1. An organelle
  2. An organism
  3. A microbe
  4. An antibody
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Correct answer: B. An organism

1. Bacteria live as a single cell, while humans are made of many cells; both are alive. 2. Any living thing, one-celled or many-celled, is called an organism. 3. An organelle is a small part inside one cell, far below the level of a whole living thing. _Source: OpenStax Biology (1st ed., CC BY 4.0), Ch 4 "Cell Structure", section 4.1 Studying Cells_

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What is the most effective action anyone can take to prevent the spread of contagious illnesses?

  1. Taking antibiotics
  2. Wearing eyeglasses
  3. Washing the hands
  4. Avoiding raw fruit
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Correct answer: C. Washing the hands

1. Microbes are everywhere: on doorknobs, money, hands, and many other surfaces. 2. The most effective action anyone can take against contagious illness is washing his or her hands. 3. Touching your mouth, nose, or eyes with unwashed hands lets those microbes into the body. _Source: OpenStax Biology (1st ed., CC BY 4.0), Ch 4 "Cell Structure", section 4.2 Prokaryotic Cells_

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