Phospholipid molecules will form aggregates called ________ when placed in water.
A. micelles
B. prostaglandins
C. ketone bodies
D. surfactants
Answer: A
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While walking barefoot on the beach, Joe stepped on a thorn that penetrated through the sole of his foot to the dermis. How many layers of epidermis did the thorn penetrate?
A) 1 B) 2 C) 3 D) 4 E) 5
________ is a condition where fatty deposits form in an arterial wall.
Fill in the blank(s) with the appropriate word(s).
Label area "B" on the cerebral cortex
A. visual cortex B. primary motor cortex C. primary somatic sensory cortex D. motor speech area (Broca area) E. sensory speech area (Wernicke area)
Which of the following is not true of elastic filaments?
A. They are composed of titin. B. They run through the core of thin filaments. C. They attach to Z discs. D. They prevent overstretching of muscle fibers. E. They help to stabilize thick filaments.