# AP Biology John D. O’Bryant School of Mathematics and Science - PowerPoint PPT Presentation

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AP Biology John D. O’Bryant School of Mathematics and Science. September 19, 2012. Agenda. Do Now (Quiz) Case Study: “A Can of Bull: Do Energy Drinks Really Provide a Source of Energy?” Video: “Inner Life of the Cell” Microanatomy of the Cell. Do Now (Quiz).

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AP Biology John D. O’Bryant School of Mathematics and Science

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## AP BiologyJohn D. O’Bryant School of Mathematics and Science

September 19, 2012

### Agenda

• Do Now (Quiz)

• Case Study: “A Can of Bull: Do Energy Drinks Really Provide a Source of Energy?”

• Video: “Inner Life of the Cell”

• Microanatomy of the Cell

### Do Now (Quiz)

• 1. The structural level of a protein least affected by a disruption in hydrogen bonding is the

• A) primary level

• B) secondary level

• C) tertiary level

• D) quaternary level

### Do Now (Quiz)

• 2. Which of the following is a difference between DNA and RNA?

• A) RNA is double-stranded; DNA is single-stranded

• B) DNA is found in the nucleus; RNA is never found in the nucleus

• C) In DNA, adenine pairs with guanine; in RNA, adenine pairs with thymine

• D) DNA contains thymine; RNA contains uracil

• E) DNA consists of five different nucleotides; RNA consists of four different nucleotides

### Do Now (Quiz)

• 3. In the double helix structure of nucleic acids, cytosine hydrogen bonds to

• A) deoxyribose

• B) ribose

• D) thymine

• E) guanine

### Do Now (Quiz)

• 4. A double-stranded DNA molecule contains a total of 120 purines and 120 pyrimidines. This DNA molecule could be comprised of

• A) 120 adenine and 120 uracil molecules

• B) 120 thymine and 120 adenine molecules

• C) 120 cytosine and 120 thymine molecules

• D) 240 adenine and 240 cytosine molecules

• E) 240 guanine and 240 thymine molecules

### Do Now (Quiz)

• 5. The globular protein transthyretin results from the aggregation of four polypeptide subunits. Each of the subunits is a polypeptide chain with an alphe helix region. Which structure(s) must the transthyretin protein have?

• A) primary structure

• B) primary and secondary structure

• C) primary, secondary, and tertiary structure

• D) primary, secondary, tertiary, and quaternary structure

• E) primary, secondary, tertiary, quaternary, and alpha structure