Biology 12

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Author:
alz_gal
ID:
122798
Filename:
Biology 12
Updated:
2011-12-11 18:02:57
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Biology 12 Final
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Description:
Things to know for the final exam
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  1. The movement of water across a selectively permeable membrane is called:
    A. osmosis
    B. active transport
    C. filtration
    D. facilitated transport
    A. osmosis
    (this multiple choice question has been scrambled)
  2. The plasma membrane consists of:
    A. mostly proteins
    B. entirely of phospholipids
    C. phospholipids, proteins, and carbohydrates
    D. carbohydrates and lipids
    C. phospolipids, proteins, and carbohydrates
    (this multiple choice question has been scrambled)
  3. Which of the following is necessary for diffusion to occur?
    A. a hypertonic solution
    B. cellular energy
    C. a concentration gradient
    D. a selectively permeable membrane
    C. a concentration gradient
    (this multiple choice question has been scrambled)
  4. Which structure permits the entry and exit of dissolved materials in an animal cell?
    A. lysosome
    B. chromosome
    C. cell wall
    D. cell membrane
    D. cell membrane
    (this multiple choice question has been scrambled)
  5. Which of the following is a monomer of the mosaic component of the cell membrane?
    A. amino acid
    B. glycerol
    C. nucleotide
    D. phospholipids
    A. amino acid
    (this multiple choice question has been scrambled)
  6. In a solution, the particles which are dissolved are the
    A. solvent
    B. mixture
    C. solute
    D. solution
    C. solute
    (this multiple choice question has been scrambled)
  7. Which of the following is not found in the lymphatic system?
    A. arteries
    B. veins
    C. nodes
    D. capillaries
    A. arteries
    (this multiple choice question has been scrambled)
  8. The most muscular chamber of the heart is the
    A. right ventricle
    B. left ventricle
    C. left atrium
    D.right atrium
    B. left ventricle
    (this multiple choice question has been scrambled)
  9. Rapid production of lymphocytes in the lymph nodes would indicate the presence of
    A. hypotension
    B. an infection
    C. capillary fluid exchange
    D. hypertension
    B. an infection
    (this multiple choice question has been scrambled)
  10. In the fetus, the function of the oval opening is to
    A. take blood to the lungs
    B. return blood from the placenta to the heart
    C. ensure adequate blood flow to the brain
    D. direct some of the blood away from the lungs
    D. direct some of the blood away from the lungs
    (this multiple choice question has been scrambled)
  11. Blood leaves the right ventricle via the
    A. inferior vena cava
    B. pulmonary trunk
    C. aorta
    D. coronary arteries
    B. pulmonary trunk
    (this multiple choice question has been scrambled)
  12. Hypertension would be indicated by a blood pressure reading of
    A. 120/80
    B. 100/80
    C. 129/90
    D. 160/120
    D. 160/120
    (this multiple choice question has been scrambled)
  13. A blood vessel that transports blood out of a capillary bed is a(n)
    A. vein
    B. venule
    C. artery
    D. arteriole
    B. venule
    (this multiple choice question has been scrambled)
  14. The 'lub' heart sound is due to the
    A. closing of the semilunar valves
    B. closing of the atrioventricular valves
    C. outward rush of blood to the heart
    D. contraction of the aortic muscle tissue
    B. closing of the atrioventricular valves
    (this multiple choice question has been scrambled)
  15. Blood travelling from the intestines to the liver is traveling in the
    A. hepatic portal vein
    B. renal vein
    C. coronary vessels
    D. pulmonary vein
    A. hepatic portal vein
    (this multiple choice question has been scrambled)
  16. Why is it advantageous to have blood move slowly in the capillaries?
    A. it creates a greater osmotic pressure for cells
    B. it maintains the high pressure in the capillaries
    C. it provides time for substances to be exchanged
    D. it will not cause damage to the valves
    C. it provides time for substances to be exchanged
    (this multiple choice question has been scrambled)
  17. Accumulation of cholesterol beneath the inner linings of arteries is called
    A. hypertension
    B. stroke
    C. thrombus
    D. atherosclerosis
    D. atherosclerosis
    (this multiple choice question has been scrambled)
  18. The pacemaker of the heart is the
    A. Purkinje fibers
    B. apex
    C. AV node
    D. SA node
    D. SA node
    (this multiple choice question has been scrambled)
  19. ___________ is (are) a condition in which there are irregular dilations (stretching) of superficial veins
    A. atherosclerosis
    B. varicose veins
    C. arterial plaque
    D. hypotension
    B. vericose veins
    (this multiple choice question has been scrambled)
  20. Systole occurs when the
    A. semilunar valves open and close
    B. heart tissue is contracting
    C. aortic valves open and close
    D. heart tissue is relaxing
    B. heart tissue is contracting
    (this multiple choice question has been scrambled)

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