Biology 3/26

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. 

Tags

NGSS.HS-LS1-6

What is a peptide bond?

• Bond that holds two amino acids together.
• A bond that holds hydrogen and oxygen molecules together.
• A bond that holds the phosphate group of one nucleotide and a sugar of a neighboring nucleotide.
• A bond that is formed by the sharing of electrons.

Tags

NGSS.HS-LS1-6

How many different amino acids are there?

• 15
• 20
• 25
• 30

Tags

NGSS.HS-LS1-6

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

This is one job proteins do NOT have in the body

• storing genetic information
• structure
• speed up chemical reactions
• transport things through cell membrane

What is the monomer of proteins?

• amino acids
• polypeptides
• nucleotides
• monosaccharides

Tags

NGSS.HS-LS1-6

Which macromolecule is this?

• carbohydrate
• lipid
• protein
• nucleic acid

Tags

NGSS.HS-LS1-6

While speaking to a colleague, a scientist makes the following statement: "I propose that Bald Eagle eggs in northern Maine will have thinner shells than those from birds in southern Alaska due to increased levels of pesticides in the water." This statement is a

• theory
• law
• conclusion
• hypothesis

Which statement correctly identifies the difference between laws and theories?

• Laws are a statement of fact, while theories are a statement of opinion.
• Laws explain why phenomena exist, while theories explain how.
• Laws are a prediction of phenomena, while theories are an explanation.
• Laws describe phenomena, while theories explain why phenomena exist.

The structure of proteins can be changed by environmental factors such as temperature or pH.

• True
• False