The Function of Proteins

What is a protein: 

• A polymer composed of many sugars.
• A polymer composed of many amino acids. 
• A polymer composed of fatty acids. 
• A polymer composed of nucleotides. 

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Enyzmes are a very important type of protein used to

• Build bones in skeleton
• Send hormonal signals throughout body
• Speed up chemical reactions
• Photosynthesize glucose in plants

Which of the following is NOT a function of proteins

• Assist in blood clotting
• Fight infections and diseases
• Assist in the processing of glucose
• None of the above

What happens when an enzyme is placed outside it's normal environment?

• It functions normally

• It functions better

• It's function ceases

Which statement about enzymes is FALSE?

• They are made from amino acids

• They can be used multiple times

• They lower the energy needed for reactions

• A single enzyme has many different functions

All proteins

• have a unique structure that determines their unique function.

• are exactly the same in function but different in structure.

• are exactly the same in structure but different in function.

• are enzymes.

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The order of amino acids determines the ______ and ultimately the function of a protein.

• shape

• color

• flavor

• texture

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Lactase

• Is the enzyme that processes the sugar lactose

• Is the enzyme that processes the sugar fructose

• Is a protein that processes the sugar lactose

• Is a protein that repairs tissues in our bodies

Chaperone proteins

• make sure other proteins have the correct shape

• break down sugars that we eat

• allow muscles to contract

• allow muscles to relax

What might happen if a lactase enzyme had the wrong shape?

• It would completely stop working

• It might still be able to work but not as well

• There might not be a spot for lactose to bond

• Nothing, proteins are adaptable and it would still be able to function

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