UNIT 2: ECOLOGICAL BIOCHEMISTRY
2B: BIOCHEMISTRY part 1
Roadmap for the year:
Unit 1: Interconnectedness of Life
Unit 2: Ecological Biochemistry
 2A- Basic Chemistry
 2B- Biochemistry
 2C- Chemistry of Ecology
 2D- Human Impact
Unit 3: Cellular Biology: Structure Leads to Function
Unit 4: DNA Structure and Cellular Reproduction
Unit 5: Gene Expression and Inheritance
Unit 6: Evolution and Classification of Living Things
Unit 7: Biotechnology, Human Biology, and Disease
Themes for the year:
How does this unit contribute to
your understanding of the following
themes?
 Life on Earth has various Levels
of Organization
 The Structure of Living Things
leads to their Function
The Big Picture for Unit 2…
Living organisms are made of molecules that react with each other in predictable ways.
There are four main groups of biological molecules that make up the structure of living
things and control their functioning. The existence of life on Earth depends on interactions
among organisms and between organisms and their environment. Matter cycles through
ecosystems with a constant input of energy
 What is the relationship between chemistry and biology?
 What role do biological molecules play in sustaining and controlling life?
 How do enzymes control the rate of reactions?
 What are some of the roles of the organisms in ecosystems?
 How does an organism’s structure enable it to survive in its environment?
 Why do you find similar groups of organisms in similar environments around the
Earth?
 Why is the cycling of matter important to life on earth?
 What factors affect population size and how does the size of a population size affect its
environment?
 How do human activities shape local and global ecology?
Suggested Resources…
Homework Assignments
Classwork Assignments
Laboratory Activities
Note Packet
Textbook: Chapter 2.3
Directions: Below are check lists of things you should know and things you should be
able to do by the end of the unit. Use this tool to help you prepare for the unit assessment.
By the conclusion of this unit, you should
know the following:
By the conclusion of this unit, you
should be able to do the following:
1. Molecules are only considered to be
organic if they contain both Carbon and
Hydrogen; all other molecules are
considered to be inorganic.
2. There are 4 main elements in the molecules
that make up the bulk of living organisms
(HONC)
3. There are 4 major classes of biological
molecules (carbohydrates, lipids, proteins
and nucleic acids), most of which are
nutritionally supplied, that have specific
structures relating to their function.
4. Many organic compounds are polymers
composed of monomers.
5. Indicators can be used to identify the
presence of the 4 major categories of
organic compounds in food mixtures.
6. Biological molecules form through
dehydration synthesis and break down
through hydrolysis.
7. The functions of organic molecules are
dependent upon their form (structure). If
this form is lost or disrupted, the function
of the molecule will likely change.
1. Differentiate between organic and
inorganic compounds
2. Name and describe the structure and
functions and nutritional sources of
carbohydrates, lipids, proteins and
nucleic acids, including their
monomer and polymer units.
3. Identify various components of
organic compounds using chemical
indicator solutions.
4. Describe the reactions (dehydration
synthesis and hydrolysis) that are
used to build and breakdown the
four major classes of organic
molecules (carbohydrates, lipids,
proteins, nucleic acids).
5. Distinguish between saturated and
unsaturated fatty acids.
6. Describe carbohydrate and lipid
molecules that can be used by
organisms for energy.
7. Discuss the role of water in
dehydration synthesis and
hydrolysis reactions.
BIOCHEMISTRY part 1 KEY TERMS
Words found in the textbook:
1.
Carbohydrates
2.
Lipids
3.
Proteins
4.
Nucleic acids
5.
Monomer
6.
Polymer
7.
Monosaccharides
8.
Deoxyribonucleic Acid (DNA)
9.
Ribonucleic Acid (RNA)
10.
Nucleotides
11.
Adenosine triphosphate (ATP)
12.
Amino Acid
13.
Polypeptide
Words NOT found in the textbook:
14.
Inorganic
15.
Organic
16.
Hydrolysis
17.
Dehydration synthesis
18.
Glucose, galactose
fructose, ribose
19.
Dimer
20.
Sucrose
21.
Lactose
22.
Disaccharides
23.
Simple Sugars
24.
Polysaccharides
25.
Cellulose
26.
Starch
27.
Glycogen
28.
Glucose
29.
Fats
30.
Oils
31.
Phospholipids
32.
Triglycerides
33.
Steroids
34.
Unsaturated fatty acids
35.
Saturated fatty acids
36.
Hydroxyl / carboxyl groups