Iris: Definition & Function Video


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What is the iris of the human eye?

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1. From the least amount of pigment to the most, what is the order of eye colors determined by the quantity of pigments.

2. What is the purpose of the iris?

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About This Quiz & Worksheet

This quiz/worksheet hybrid will examine your awareness of what the iris is, its purpose, related technology, and eye pigmentation.

Quiz & Worksheet Goals

More specifically, this quiz will assess your knowledge of:

  • Dependence of iris recognition technology
  • The iris' characteristics
  • The iris' purpose
  • Eye colors, determined by amount of pigment

Skills Practiced

  • Information recall - access the knowledge you've gained regarding the eye's components
  • Reading comprehension - ensure that you draw the most important information from the related lesson on the function of the iris
  • Critical thinking - apply relevant concepts to examine information about the uniqueness of the eyes

Additional Learning

Want to learn more about the iris? Take a look at the associated lesson titled Iris: Definition & Function. It will cover things like:

  • The makeup of the iris
  • How it works
  • Its unique qualities
  • The role pigmentation plays