Which of the following statements concerning membrane transport across the plasma membrane is true?
A. All molecules are moved across by active transport.
B. Water cannot move through the membrane.
C. Lipid-soluble substances pass through the membrane by dissolving in the lipid bilayer.
D. Generally, cations pass through the membrane more easily than anions.
E. Polar molecules are transported more easily than nonpolar molecules.
C
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If a blood cell is placed in a hypotonic solution:
a. water will enter the cell b. water will leave the cell c. it will crenate d. both B and C above
The order of the small intestinal segments from proximal (oral) to distal (aboral) is:
A) duodenum, ileum, cecum B) duodenum, ilium, jejunum C) duodenum, jejunum, ileum D) duodenum, ilium, colon E) duodenum, jejunum, ilium
What is the final stage in the healing of a bone fracture?
bone remodeling formation of a hematoma formation of a fibrocartilaginous callus formation of a bony callus
Which inspiratory muscles contract so we can inspire air?
A) rectus abdominis; external obliques B) diaphragm; external intercostals C) trapezius; latissimus dorsi D) diaphragm; external obliques