Rules• 3 color cards= 3 Teams• Team work + Individual Performance• Highest scoring Team =Bonus marks to each team member• In a team, each member will have one number, and the

question can be asked to anyone ( Number will be called out) if the student answers- team will get a plus point and so does the student. If a student fails, it will effect the students class performance!

• If the question is not answered by the team, it will be passed on to the another team.

• Buzzer Round- questions to all team at a time, whoever buzzes first, the marks will be bonus for that team

All The Best

Quiz

1- Chemical and Molecular Foundations

March 13, 2014

Chapter 1 & 2

• Life Begins with cells

• Chemical Foundations

1.In what way are all cells alike?

A. They are round in shape. B. They are about a tenth of a millimeter in diameter. C. They store their genetic instructions in DNA. D. They require oxygen to live.

2.How long ago is it estimated that the common ancestor for all of life existed?

A. Between 350 and 380 thousand years ago

B. Between 3.5 and 3.8 million years ago

C. Between 3.5 and 3.8 billion years ago

3.Genetic change followed by selection are the fundamentals of what process?

A. Genetic drift

B. Evolution

C. Reproduction

D. DNA duplication

4.Which statement is NOT true about the differences between liver cells and kidney cells from the same animal?A. The different cells express different genes.

B. The different cells have different DNA.

C. The different cells have different roles in the body.

5. What is the cell theory?

A. All cells are formed by the division of preexisting cells.

B. All cells have genetic material that they pass on to daughter cells.

C. All cells require a continual input of energy to sustain life.

6.What do eucaryotic cells have that procaryotes lack?

• A. A nucleus and other internal organelles

• B. A cell wall

• C. A means of generating their own energy

7. How much does a mole of carbon atoms (having an atomic weight of 12) weigh?

• A. 6 x 1023 g

• B. 12 g

• C. 24 g

Chapter 3.

Proteins

1.How many different amino acids are used in making proteins?

A. 12

B. 20

C. 32

2.Which parts of amino acids are involved in peptide bonds?

A. The carboxyl group on one amino acid and the side chain on the other

B. The carboxyl group on both amino acids

C. The amino group on one amino acid and the carboxyl group on the other

D. The amino group on both amino acids

3. Which part of an amino acid gives it its unique properties?

• A. The amino group

B. The carboxyl group

C. The side chain

4.In a folded protein, the nonpolar (hydrophobic) amino acids tend to be:• A. tucked away inside the protein.

B. exposed on the outside of the protein.

C. distributed randomly throughout the protein.

5. What provides the information necessary to specify the three-dimensional shape of a protein?

A. The protein's peptide bonds

B. The protein's interactions with other polypeptides

C. The protein's amino acid sequence

D. The protein's interaction with molecular chaperones

6. The biological activity of a protein is determined by its:

A. peptide bonds.

B. amino acid sequence.

C. ability to form α helices.

D. ability to form β sheets.

7. A protein can be unfolded by a process called:

A. renaturation.

B. denaturation.

C. oxidation.

D. reduction.

8.Which hydrogen bonds have been found to stabilize a polypeptide's folded shape?

A. Hydrogen bonds between side chain atoms

B. Hydrogen bonds between backbone atoms

C. Hydrogen bonds between backbone atoms and side chain atoms

D. All of the above

E. A and B, but not C

9.What does the term protein domain refer to? Bonus question

• A. A region in the cell where a protein can be found B. A segment of a protein that can fold independently into its own compact, three-dimensional structure C. The functional activity of a protein D. The region on a protein that determines how it folds into a three dimensional structure.

10. Why are α helices and β sheets common folding patterns in polypeptides?• A. The unique amino acid sequences that generate

these folding patterns are common in polypeptides.

B. Molecular chaperones tend to fold polypeptides in these common folding patterns.

C. Amino acid side chains are not involved in forming the hydrogen bonds, allowing many different sequences to adopt these folding patterns.

Finding Literature/Information/Data

• Source of your data Collection – References

• Explain what you understood in your words and not copy- paste ( Avoid Plagiarism)

• *Plagiarism- the practice of taking someone else's work or ideas and passing them off as one's own. Simple words- Copying

Words• Protein Structure

• Sickle Cell Disease

• Chaperones

• Evolution

• Mitochondria

• Motif

Answers 1 & 2

1. C2. C3. B4. B5. A6. A

Answers Proteins

1. B2. C3. C4. A5. C6. B7. B8. D9. B10. C