Cell Transport Proteins and Functions Quiz

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What is the primary function of catalytic proteins?

Control enzymatic action by turning enzymes on and off

Which protein provides immunological protection for mammalian young?

Casein

Where are defense proteins often found in the cell?

Embedded in the exterior surface of cell membranes

Which protein maintains acid-base balance within body fluids?

<p>Hemoglobin</p> Signup and view all the answers

What is the main function of transport proteins in the cell?

<p>Help molecules enter and exit the cell</p> Signup and view all the answers

In which part of the circulatory system can fluid-balance proteins like albumin and globulin be found?

<p>Blood capillary beds</p> Signup and view all the answers

Which type of protein is best known for their catalytic role in almost every chemical reaction in the body?

<p>Defense proteins</p> Signup and view all the answers

Which proteins are central to the functioning of the body's immune system?

<p>Structural proteins</p> Signup and view all the answers

Which proteins are necessary for all forms of movement and are found in muscles as filament-like structures?

<p>Structural proteins</p> Signup and view all the answers

Which type of protein is responsible for binding small biomolecules like oxygen and transporting them to different parts of the body?

<p>Messenger proteins</p> Signup and view all the answers

Which category of proteins confers stiffness and rigidity, with collagen being a common example?

<p>Transport proteins</p> Signup and view all the answers

Transmembrane proteins span a cell membrane and assist in controlling the movement of small molecules and ions. Which category do they belong to?

<p>Catalytic proteins</p> Signup and view all the answers

Which type of proteins are oxytocin and vasopressin?

<p>Transport proteins</p> Signup and view all the answers

In terms of biochemically important small peptides, which category do enkephalins belong to?

<p>Defense proteins</p> Signup and view all the answers

What is the primary function of oxytocin and vasopressin?

<p>Regulating fluid balance</p> Signup and view all the answers

Which of the following is true about the number of isomeric peptides as the peptide chain length increases?

<p>The number increases rapidly</p> Signup and view all the answers

What role do enkephalins play in the body?

<p>Assisting in pain reduction</p> Signup and view all the answers

What are the two best-known enkephalins?

<p>Met-enkephalin and Leu-enkephalin</p> Signup and view all the answers

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