Define biochemistry correct answers The branch of science that studies the chemical reactions
that occur in living organisms.
Define homeostasis correct answers A stable optimal internal environment to preserve life. The
maintenance of these optimal stable internal conditions is achieved through biochemical
reactions
What is needed for homeostasis? correct answers 1. Energy
2. Chemical building blocks
Homeostasis is maintained by using building blocks and energy derived from which nutrients?
correct answers 1. Protein
2. Carbohydrates
3. Lipids
Catabolic reactions correct answers breaking larger molecules into smaller ones
What are the characteristics of catabolic pathways? correct answers -Degradative
-Oxidative
-Energy-releasing
Anabolic reactions correct answers Synthesizing larger molecules from smaller ones
What are the characteristics of anabolic pathways? correct answers -Constructive
-Reductive
-Energy-requiring
, What are the three domains of living organisms? correct answers Bacteria, Archaea, Eukarya
Prokaryotes consist of correct answers Bacteria and Archaea
Prokaryote genome correct answers Circular chromosome
Prokaryote or eukaryote: membrane-bound nucleus correct answers Eukaryotes
Eukaryote genome correct answers Linear chromosome
Prokaryote or eukaryote: membrane-bound organelles correct answers Eukaryotes
Metabolism is comprised of two competing processes. Name these. correct answers 1.
Catabolism
2. Anabolism
Name three waste products of metabolism correct answers 1. CO2
2. H2O
3. NH4+
What are the characteristics of bacteria? correct answers Unicellular, no membrane-bound
organelles, (including no nucleus) so therefore are prokaryotes, circular genome in the nucleoid.
Transcription factors and translational machinery dissimilar to archea and eukarya
What are the characteristics of archea? correct answers Unicellular, no membrane-bound
organelles, (including no nucleus) so therefore are prokaryotes, circular genome, often live in
extreme environments like high temperature, high sulfur, high pressure, high salt. Transcription
factors and translational machinery dissimilar to bacteria but similar to eukarya