________ is the backup energy molecule that can be rapidly converted to ATP in active skeletal muscle.

A) Phosphocreatine
B) Glucose
C) Protein
D) Fatty acid


A) Phosphocreatine

Anatomy & Physiology

You might also like to view...

Which of the following statements about humoral immunity is false?

A. Humoral immunity is also called cell-mediated immunity. B. Humoral immunity begins when an APC in lymphoid tissue displays an epitope from its environment on an MHC protein. C. Plasma B cells produce specific antibodies. D. Humoral immunity involves B cells making antibodies.

Anatomy & Physiology

The vestibular bulbs serve to

A. secrete mucus into the uterus. B. constrict the vagina during intercourse. C. lubricate the cervical canal. D. lubricate the vagina. E. neutralize vaginal acidity.

Anatomy & Physiology

The lumen of the gastrointestinal tract is continuous with the external environment.

Answer the following statement true (T) or false (F)

Anatomy & Physiology

The articulations between adjacent vertebral bodies are which of the following types of joints?

A. pivot joints B. hinge joints C. symphysis joints D. none of the above

Anatomy & Physiology