Complete all three parts of this worksheet.
Part I: Atomic Structure – Fill in the missing information on atomic structure and organic compounds.
Location in an Atom
Large Biological Molecule
Atoms it Contains
Function(s) in Living Organisms
C, H, and O
Source of energy
C, H, and O
Glycerol and fatty acids
Cushion and insulate organs; builds cell membranes
C, H, O, N, and S
Helps chemical reactions, provides support and structure, provides transport within bodies and provides movement of body Nucleic acids
C, H, O, N, and P
Stores and transmits genetic information
Part II: Characteristics of Living Organisms – Seven characteristics distinguish an object or thing from an actual living organism. All seven characteristics must be present simultaneously for something to be considered living. Fill in the remaining characteristics in the following table.
Characteristics of a Living Organism
1. Order – exhibit complex but ordered organization.
2. Regulation- the environment outside of an organism can change but the organism is able to internally adjust to maintain or regulate appropriate levels for survival
3. Growth and development- the information provided by genetics which determines the growth and development patterns of an organism.
4. Energy utilization- the energy an organism takes in to use in preforming life activities.
5. Response to the environment- the response of a living organism to its environment.
6. Reproduction. Organisms reproduce their own kind.
7. Evolution. Reproduction underlies the capacity of populations to change (evolve) over time.
Part III: Write a 200- to 300-word explanation of how atoms make up organic compounds, which make up all living organisms, addressing all three domains.
According to Campbell Essential Biology with Physiology, (2010) how atoms make up organic compounds, which make up all living organisms, by addressing all three domains, are that atoms unite with carbon elements. For an example the elements could be hydrogen, oxygen, and nitrogen. These three elements bond with atoms, and create carbon and hydrogen atoms. Then the three elements then become a linked chain, the chain produces three domains that the body and all living organisms need to function. They are considered as large biological molecules. Carbohydrates, proteins, and nucleic acids are the three domains of the atom chain. The small molecules are what link the large biological molecules together.
Carbohydrates are created by carbon, oxygen, hydrogen linking together which form polysaccharides. The chain is called a polymer, which is a small molecule. Carbon, oxygen, hydrogen, and nitrogen unite and form amino acids. The Amino acids then produce proteins. Also when carbon, oxygen, hydrogen, and nitrogen unite combined with sugars it becomes nucleotide molecule. The nucleotide molecule then produces DNA and RNA. Carbon, oxygen, and hydrogen united together then form fatty acids. The fatty acids produce glycerol, and this is how lipids are formed. All three domains of that create an atom are living organisms that bond with each other to create organic compounds that produce the chains that release the carbohydrates, proteins, and nucleic acids. All three of these basic atoms are needed to grow food, and digest food that make up all living organisms including humans, animals, and natural gases.
Eric J. Simon, Jane B. Reece, and Jean L. Dickey. (2010). Campbell Essential Biology with Physiology,. Retrieved from Eric J. Simon, Jane B. Reece, and Jean L. Dickey, SCI/230 website.