18 Questions
Which type of proteins have a compact, globular (rounded) shape and are water soluble?
Globular proteins
Which proteins function as localized oxygen reserves for times of intense respiration?
Myoglobin and Hemoglobin
What is the complex organic ring structure in prosthetic group of Myoglobin and Hemoglobin?
Protoporphyrin
In the heme of Myoglobin and Hemoglobin, the iron atom is in which state?
Ferrous (Fe2+)
Where is the heme positioned within Myoglobin and Hemoglobin?
Within a hydrophobic pocket of the apoprotein
What is the primary function of Collagen?
Provides structural support to tissues
Which protein transports gases through the blood?
Hemoglobin
What triggers a change in conformation from the T state to the R state in hemoglobin?
Binding of oxygen
Which type of protein is characterized by being insoluble in water and adapted for structural functions?
Fibrous protein
What is the most abundant protein in mammals?
Collagen
Which disease is caused by a lack of vitamin C required for the formation of hydroxyproline?
Scurvy
Which protein is associated with the globular domains containing a site where ATP is hydrolyzed?
Actin
What is the function of collagen type IV?
Support and filtration
In which type of tissue is collagen type III found?
Smooth muscle, uterus, arteries, liver, spleen, lung, kidney
Which protein contains 2 heavy chains and 2 light chains?
Myosin
What do fibrous proteins primarily provide to structures?
Strength
What triggers the change in conformation of hemoglobin from T state to R state?
Binding of oxygen
What does collagen fibers have that increases in number with age?
Cross-links
Explore the structure-function relationship in specific proteins, including globular proteins like Hemoglobin and Myoglobin, as well as fibrous proteins like Collagen, Myosin, and Actin fibers. Understand the characteristics of globular proteins, their compact shape, water solubility, and diverse biological functions such as enzymes, transport proteins, and immunoglobulins.
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