Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
18 Cards in this Set
- Front
- Back
Proteins are?
|
An organic compound made of one or more polypeptide chains of amino acids (enzymes, gelatin, collagen, hemoglobin) Functions: structural components of cells, organic catalysts, antibodies, hormones
|
|
What is Activation Energy?
|
It initiates chemical reactions
|
|
Proteins vary widely?
|
In structure
|
|
The structure of a protein can be analyzed at four levels that form a hierarchy
|
The amino acid sequence, substructures called α-helices and β-pleated sheets, interactions between amino acids that dictate a protein's overall shape, and combinations of individual proteins that make up larger, multiunit molecules
|
|
In cells, most proteins are
|
enzymes that function as catalysts
|
|
Chemical reactions occur much faster when they are
|
catalyzed by enzymes
|
|
During enzyme catalysis
|
the reactants bind to an enzyme's active site in a specific way
|
|
Catalyze means?
|
speed up chemical reactons
|
|
A protein that functions as a catalyst is called?
|
an Enzyme
|
|
what does the protein Hemoglobin do?
|
Hemoglobin carries oxygen from your lungs to cells throughout the body.
|
|
what does Carbonic Anhydrase do?
|
Carbonic Anhydrase is a protein, which is found in red blood cells, that carries carbon dioxide from cells back to the lungs.
|
|
functions of Proteins are?
|
Defense, Movement, Catalysis, Signaling, Structure, and Transport
|
|
Antibodies and complement proteins' role
|
Defense--destruction of disease-causing viruses and bacteria
|
|
Contractile proteins and motor proteins' role
|
Movement
|
|
Hormones proteins' role
|
Act as signals that help coordinate the activities of many cells
|
|
Receptor proteins' role
|
receive chemical signals from outside cell and initiate response
|
|
Transport proteins' role
|
move substances across cell membrane and throughout body
|
|
Structural proteins' role
|
provide support for cells and tissues; form structures such as hair, feathers, cocoons, and spider webs
|