Discussion 2: Chemistry Review

Discussion 2:

Chemistry Review

Name one person you are close to whom you'd like to be more like, and why

Think/Pair/Share

Agenda

• Attendance

• Figure Review

• Exit Ticket

Figure 2-15 Molecular Biology of the Cell (© Garland Science 2008)

Draw

Circle the strongest type of bond.

Fill in the Blanks

Figure 2-15 Molecular Biology of the Cell (© Garland Science 2008)

Multiple Choice

What is so special about the elements highlighted in yellow?

• There atomic numbers are even.

• They are alkali earth metals

• They are commonly found in biological organisms

• They are unreactive Noble Gases

Figure 2-4 Molecular Biology of the Cell (© Garland Science 2008)

Most common elements in living things:

• Carbon

• Nitrogen

• Oxygen

• Hydrogen

Open Ended

Describe in your own words, what is happening in this image?

Open Ended

What is happening in this image?

Name two elements that could be involved.

Figure 2-5 Molecular Biology of the Cell (© Garland Science 2008)

Phospholipid structure

Structure allows the formation of a lipid bilayer

Multiple Choice

Which part of this molecule hates water?

• The polar group

• The fatty acid tail

Phospholipid structure

Structure allows the formation of a lipid bilayer

Formative Assessment

• On the phospholipid molecule in the Figure label each

numbered line with a correct term selected from the list
below.

A phosphate
B nonpolar head group
C glycerol
D polar head group
E saturated fatty acid
F acetic acid
G sugar
H hydrophobic region
I hydrophilic region
J unsaturated fatty acid

Formative Assessment

• On the phospholipid molecule in the Figure label each

numbered line with a correct term selected from the list
below.

A phosphate
B nonpolar head group
C glycerol
D polar head group
E saturated fatty acid
F acetic acid
G sugar
H hydrophobic region
I hydrophilic region
J unsaturated fatty acid

1—D;
2—A;
3—C;
4—J;
5—I;
6—H;
7—E

Figure 2-19 Molecular Biology of the Cell (© Garland Science 2008)

Multiple Choice

What type of bond is produced during a condensation reaction?

• Hydrogen bond

• Ionic bond

• Peptide bond

• Covalent bond

Figure 2-6 Molecular Biology of the Cell (© Garland Science 2008)

Multiple Choice

Why do elements in the same vertical column, (like Mg,and Ca)have similar chemical properties?

• They have the same number of electrons.

• They need to gain or lose the same number of electrons to have a full outer shell.

• Their atomic numbers are only one number different.

• That is what is required for most biological reactions.

Figure 2-10 Molecular Biology of the Cell (© Garland Science 2008)

Open Ended

Why are there partial charges labeled on the water molecule in the top half but not the oxygen molecule down below?

Figure 2-14 Molecular Biology of the Cell (© Garland Science 2008)

1.

Carbohydrate

2.

Lipid

3.

Monomer of a protein

4.

Monosaccharide

5.

Disaccharide

6.

Polysaccharide

7.

Polypeptide

8.

Saturated fatty acid

9.

Unsaturated fatty acid

10.

Triglyceride

11.

Phospholipid

12.

Steroid

13.

Amino acid

Identify each of the
molecules as one or more
of the following:

Answers:

How many did you get right?

What are your plans to learn the ones you did not get correct?

How are you planning to study for the midterm?

What are the areas of weakness you will focus on?

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