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Amino acids are linked together by…….

Which of the following is a function of proteins?  

In DNA, adenine always pairs with:

Water is less dense as a solid than as a liquid. That’s why ice floats.

Which of the following pH values correspond to the highest hydrogen ion concentration?

Which of the following is a storage polysaccharide:

The numbers listed represent the first, second, and third energy levels, respectively. On this basis, which of the following is an unstable or reactive atom?

This is the essay Question–it has 2 parts–A and B (allow 25-30 min). You CANNOT SKIP this Question and RETURN TO IT. Instructions for this portion of the test: You must answer Part A and Part B in essay format (2-3 paragraphs of 6-10 sentences) in approximately 25 minutes, and you must thoroughly address both Part A and B coherently.  You should write, then reread your work to proofread and make corrections and additions,. You should define all relevant terms, as this provides half of the credit for the essay. Note: All of the response must be written in full sentences at the college level and in an organized easy format–NO bulleted ideas, no lists, or fragmented thoughts. This is the minimum standard by which a response will be considered for credit. Part A: Discuss a negative feedback process of the body indicating all of the aspects (e.g., effector, control center, pathways, etc.). Make sure each term within the process is DEFINED and its role in the process explained. What is the ultimate result of all negative feedback responses? (approx. 5-6 sentences)   Part B: Discuss a positive feedback process of the body indicating all of the aspects (e.g., effector, control center, pathways, etc.). Make sure each term within the process is DEFINED and its role in the process explained. What is the ultimate result of all positive feedback responses? (approx. 5-6 sentences)

The lower the pH, the greater the number of hydrogen ions.

Which does NOT have anything to do with serous membranes?