Name ______________________________ Lecture Activity #1

Define the following terms in your own words. Research the terms and then translate into language that a 5^th grader would understand. Use the bottom of the sheet if additional space is needed to answer any of the questions. Illegible and unreadable answers are graded as incorrect.

1. science - __________________________________________________________________________

2. technology - __________________________________________________________________________

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Complete the following sentences or answer the question.

#1

Define terms in your own words. Research the terms and then translate into language that a 5^th grader would understand. Use the bottom of the sheet if additional space is needed to answer any of the questions. It is expected that your answers will be complete and grammatically correct. Illegible and unreadable answers are graded as incorrect.

 1. All living things share a number of characteristics. Identify these

     characteristics and define and explain the characteristics of

     metabolism, homeostasis and reproduction. (2)

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 2. Why are viruses not considered living? (1)

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3. Identify the differences and similarities between eukaryotic and

     prokaryotic cells. Use the following as your guide. If a term refers to

     something found only in a prokaryotic cell, place the letter P after the

     term. If found only in eukaryotic cells, use the letter E. If found in    

     both use the letter B. (2)

       nucleic acids  _____                  cell membrane _____

       nucleus          _____                   organelles        _____

       mitochondria _____                   chloroplasts     _____

       bacteria         _____                    circular chromosome _____

       cytoplasm     _____                    human cells      _____

4. Match the following organelles with their functions. (1)

       ribosome          _____                           lysosome                 _____

       rough endoplasmic reticulum _____     mitochondria    _____

       smooth endoplamic reticulum _____    chloroplast              _____

       Golgi apparatus        _____                  cytoskeleton     _____

       a. asembles amino acids into proteins destined to go to the cell

            membrane or leave the cell

       b. converts organic molecules into usable cellular energy

       c. captures and converts energy from sunlight and uses it to build

            organic molecules

       d. helps provide the cell with a flexible shape

       e. receives, sorts, packages, and assembles products from the ER

       f. breaks down a variety of cellular debris and materials

       g. involved in lipid metabolism such as cholesterol production

       h. contains protein synthesis machinery

 5. Describe the functions of the cell membrane by distinguishing

     between passive and active transport mechanisms. (2)

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 6. Identify and provide information about the functions of the four types

     of proteins that are part of the membrane. (1)

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 7. Explain how membrane characteristics help the cell maintain its

     homeostasis. (1)

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#2