Chemistry in Biology

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Friday Nov 21-week 15
Science of Life
TOPIC: Proteins & Nucleic Acids
 OBJ : 9-11
DO NOW: List the building blocks of Carbs and Lipids.
-Finish 6.4 Notes
-Concept Map
-Review
HANDOUTS to PICK-UP:
-Concept Map
-6.3/6.4 Review
ABSENT
AGENDA
EXT: Concept Map
DUE DATE: 11/24
DW: 6.3/6.4 Review
----------------------------------------------------------------------------------------------------------------
SEMINAR 2:
BEFORE/AFTER SCHOOL:
DW-
EXIT: Fill in your level of understanding AND What is the relationship
between macromolecules and polymers.
FRIDAY
Friday: ___11__/__21___
OBJECTIVE…#_9-11_____
TOPIC:
Proteins & Lipids
Daily Work Grade- Exit Activity from Block day
DW GRADE:
2 1 0
DO NOW
•Q: List the macromolecules of
Carbs and Lipids.
•A: monosaccharides/triglycerides
Missing
Work
Today’s Objectives
12---DESCRIBE the role of carbon in living organisms
13---IDENTIFY/ FAMILIARIZE yourself with the four major families of
biological macromolecules
14---COMPARE the function of each group of macromolecules
Vocabulary
-organic / inorganic
-macromolecule
-polymer
-carbohydrate
-lipid
-protein
-amino acid
-nucleic acid
-nucleotide
These should
be done by test
day!
Proteins
Chapter 6
Proteins
Chemistry in Biology
 A compound made of small carbon compounds
called amino acids
 Amino acids are small compounds that are
made of carbon, nitrogen, oxygen, hydrogen,
and sometimes sulfur.
Characteristics of Proteins
• Amino acids (monomers) are the basic
building blocks of polypeptides (polymers)
and polypeptides form proteins.
• Functions:
– structural components of cells
– catalyzing chemical reactions (enzymes)
– transporting substances within cells
– messenger molecules (hormones)
Chapter 6
Proteins
Chemistry in Biology
 Amino acids have a central carbon atom.
 One of the four carbon bonds is with hydrogen.
 The other three bonds are with an amino group
(–NH2), a carboxyl group (–COOH), and a
variable group (–R).
Chapter 6
Proteins
Chemistry in Biology
Chapter 6
Structures of Proteins
Chemistry in Biology
 The number and the order in which the amino
acids are joined define the protein’s primary
structure.
 After an amino acid chain is formed, it folds into a
unique three-dimensional shape, which is the
protein’s secondary structure, such as a helix or a
pleat.
Summary
• Write of brief, comprehensive summary (3-4
sentences) of your notes, focusing on the main ideas
and concepts.
• Be prepared to share you summary with your
classmates.
Chapter 6
Chemistry in Biology
Nucleic Acids
 Nucleic acids are complex macromolecules that store
and transmit genetic information.
 Nucleic acids are made of smaller repeating subunits
called nucleotides, composed of carbon, nitrogen,
oxygen, phosphorus, and hydrogen atoms.
Chapter 6
Chemistry in Biology
Building Blocks of Life
Summary
• Write of brief, comprehensive summary (3-4
sentences) of your notes, focusing on the main ideas
and concepts.
• Be prepared to share you summary with your
classmates.
Worksheet Correction
• Protein:
EXIT
FILL-IN: level of understanding of today’s objective

EXIT: What is the relationship between
macromolecules and polymers.
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