Haiku Tuesday: The Open Road

 

Sun sears vinyl seats
as the horizon dances,
the mirage beckons.

The backseat cooler
leaks our precious blue ice-melt.
Next gas ninety miles.

Roadside attractions
other-worldly aliens,
dinosaurs loom tall.

The map wrong folded
crackles and flaps, resisting
my seventh attempt.

Five hundred and one
miles done, cassette tape broken
silent hundreds to come.


14 thoughts on “Haiku Tuesday: The Open Road

  1. Just a random observation. The five haikus could conceivably be placed in any order, and I thought it was cool how changing it around subtly changes the story of the whole. 5-1-3-2-4 was my favorite.

    Liked by 1 person

      1. Yeah, that does make for a fairly ominous ending. Or:

        Pop! I hear clicking!
        Could be a nail in the tread.
        We have no spare tire.

        I smell anti-freeze
        steam is billowing upward
        radiator

        Can’t put the top up.
        The sun is baking my face.
        Who took my Chapstick?

        But I digress.

        Liked by 2 people

        1. The currently accepted biochemical model for hemoglobin cooperativity is the concerted model, also known as the MWC model (named after its authors, Monod, Wyman, and Changeux).

          According to this model, hemoglobin is a tetramer composed of two α subunits and two β subunits. Each subunit can exist in either a relaxed (R) or a tense (T) conformation. When oxygen binds to one subunit, it induces a conformational change that stabilizes the relaxed conformation in all four subunits, making it easier for oxygen to bind to the remaining subunits. Similarly, when oxygen is released from one subunit, it induces a conformational change that stabilizes the tense conformation in all four subunits, making it easier for oxygen to be released from the remaining subunits.

          This model explains why hemoglobin has a sigmoidal oxygen binding curve, where at low oxygen concentrations, hemoglobin has a low affinity for oxygen, but as the oxygen concentration increases, the affinity of hemoglobin for oxygen increases dramatically. This allows hemoglobin to efficiently transport oxygen from the lungs to the tissues where it is needed.

          Liked by 1 person

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