Which Feature Characterizes Myoglobin

question 17

Multiple Choice

Which feature characterizes myoglobin?

• A) It is present in low concentrations in diving mammals.
• B) It facilitates diffusion of O₂ in muscle cells.
• C) It can bind two O₂ molecules.
• D) It is unable to hold an O₂ reserve.
• E) It has a lower affinity for O₂ than does hemoglobin.

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Definitions:

Formula Box

A field in spreadsheet applications where you enter or edit calculations or functions to be applied to cell data.

Insertion Point

The cursor's location in a document or field where new text or data will be entered.

Vertical Line

A straight line that runs up and down, perpendicular to a horizontal line.

Blinking

A rapid opening and closing of the eyelids or a flickering of light, or to describe text or an object that appears and disappears on a computer screen to attract attention.