Download Notes #8 PPT - Duplin County Schools

Wednesday
February 15, 2017
I can:
Agenda
Catalyst
1. How will you study more
effectively for the next Unit
Test?
2. What did you do best on with
the Unit 1 Test (what do you
think)? What do you need to
work more on for the EOC for
Ecology?
(10) Catalyst
(20) GN: Biomolecules
(15) Amoeba Sisters Video
Recap
(15) Biomolecule Puzzle
(20) IP: Macromolecules
(5) Exit Ticket

understand the structure of the
four classes of biomolecules
HW: IP: Macromolecules
Quiz corrections & Extra Credit (Friday)
Data Tracking
• Biology Master Tracker (Unit 1)
– Complete based on test and turn in
– Complete HONESTLY. This is for YOU to reflect on.
• Growth Chart *GOAL = 80%*
– Objectives:
• Pre-Benchmark
• Quiz 1 (Ecology)
• Test 1 (Ecology)
Most Missed Questions
•
•
•
•
•
•
•
•
2
8
14
15
27
39
42
43
Test Corrections / Retakes
• Must submit test corrections within one week
(due next Thursday, February 23)
• Tell me the correct answer and WHY it’s the
correct answer
• Schedule retest whenever you want (before
school, lunch and learn, after school, 1st
period)
• You keep higher score
Big Idea
By understanding the chemistry and molecules
that make up life, we have deeper insight into
how life functions.
What do these
Macromoleculesstructures
all have in
common?
carbohydrates
proteins
lipids
nucleic acids
Four groups of molecules make up the building blocks
of life. In general, they are called macromolecules (aka
organic molecules aka biomolecules).
Macromolecules
Macromolecules are formed by polymerization, in
which large polymers are built by joining small subunits
called monomers together.
monomers = subunits = building
blocks of molecules
polymers = monomers joined up by
polymerization
Carbohydrates
Carbohydrate Structure
• made up of C, H, and O
• polysaccharides are polymers made up of
monosaccharides, or simple sugars
Carbohydrate Function
• organisms’ main source of immediate energy
• structural purposes
Carbohydrates, cont.
• the tough fiber found in plants is made up of the carb
cellulose
• sugars end in –ose
• examples of simple sugars:
• complex sugars are called starches
Detecting Carbohydrates
Simple Sugars
• simple sugars turn orange in
the presence of Benedict’s
solution
no carbs
carbs present
Starches
• starches turn deep purple
in the presence of iodine, or
Lugol’s solution
Lipids
Lipid Structure
• made up of C, H, and O
• made up of glycerol and fatty acids
– long chains
Lipid Functions
• make up fats, oils, and waxes
• store energy, makes up the cell membrane,
and used in waterproof coverings
waxy cuticle of leaf = lipids to
repel water
walrus blubber = lipids to store energy
Detecting Lipids
brown paper bag
test
Proteins
Protein Structure
• made up of C, H, O, N
• amino acid subunits form long polypeptide chains
– over 20 different amino acids
an individual amino acid
Protein Function
• the most diverse macromolecules
• various roles:
– speed up reactions (enzymes)
– form muscles
– transport substances
– fight disease
Proteins, cont.
• hemoglobin is a protein that carries oxygen in
red blood cells
• insulin is a protein that regulates blood sugar
Protein Detection
Biuret’s solution turns
from blue to light purple
in the presence of protein
Nucleic Acids
Nucleic Acid Structure
• made up of C, H, O, N, and P
• subunits: nucleotides
– nucleotides are made up of a 5-carbon sugar, a phosphate
group, and a nitrogenous base
Nucleic Acid Function
• store and transmit hereditary information
Nucleic Acids, cont.
Two examples: deoxyribonucleic acid (DNA) and
ribonucleic acid (RNA)
Write on your board!
What are the four classes of biomolecules?
Write on your board!
Monomers join up to form a ___________.
Write on your board!
The monomer of carbohydrates are:
Write on your board!
The monomer of nucleic acids are:
Write on your board!
Fatty acids and glycerol make up __________
Write on your board!
Amino acids join up to form a __________
chain.
Write on your board!
What biomolecule makes up the cell
membrane?
Write on your board!
What biomolecule is found in a walrus’ blubber?
Write on your board!
Which biomolecules stores genetic information?
Write on your board!
This biomolecule is found in your muscles.
Write on your board!
This biomolecule is used by all cells for energy.