When Two Variables Move in Opposite Directions,the Curve Relating Them

question 4

Multiple Choice

When two variables move in opposite directions,the curve relating them is

• A)upward sloping,and we say the variables are positively related.
• B)upward sloping,and we say the variables are negatively related.
• C)downward sloping,and we say the variables are positively related.
• D)downward sloping,and we say the variables are negatively related.

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Definitions:

Lactate

A compound produced during anaerobic metabolism, often used by muscles as an energy source during intense exercise.

Actin Myofilament

Actin myofilaments are thin filaments composed of the protein actin and are essential components of the cytoskeleton and muscle contraction.

Myosin Myofilament

A type of protein filament in muscle cells responsible for muscle contraction, part of the thick filaments in myofibrils.

Sarcomere

The basic unit of a muscle's cross-striated myofibril, responsible for muscle contraction.