Bio 4

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dk7991
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85805
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Bio 4
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2011-05-14 16:37:39
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Bio 4
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  1. Vertebrates have

    A. radial symmetry and a true body cavity (coelomate)
    B. bilateral symmetry and a true body cavity (coelomate)
    C. bilateral symmetry and a solid body (acoelomate)
    D. radial symmetry and a solid body (acoelomate)
    E. none of the above
    B. bilateral symmetry and a true body cavity (coelomate)
    (this multiple choice question has been scrambled)
  2. During embryonic development Deuterostomes (like humans) show:

    A. spiral (determinate) cleavage and the blastopore becomes a mouth
    B. spiral (determinate) cleavage and the blastopore becomes an anus
    C. radial (indeterminate) cleavage and the blastopore becomes a mouth
    D. radial (indeterminate) cleavage and the blastopore becomes an anus
    D. radial (indeterminate) cleavage and the blastopore becomes an anus
    (this multiple choice question has been scrambled)
  3. During embryonic development in vertebrates muscles are derived from

    A. mesoderm
    B. endoderm
    C. ectoderm
    A. mesoderm
    (this multiple choice question has been scrambled)
  4. Which (if any) of the following is not considered an organ system?

    A. skeletal
    B. circulatory
    C. nervous
    D. urmary
    E. All of the above are considered to be organ systems
    E. All of the above are considered to be organ systems
  5. Which (if any) of the following is not a function of skin

    A. protect the tissues beneath
    B. connect groups of muscles
    C. provide sensory surfaces
    D. secrete substances
    E. all of the above are functions of skin
    B. connect groups of muscles
    (this multiple choice question has been scrambled)
  6. True or False:
    Epithelial (skin and lining) cells are very long lived and are replaced only after an injury to the tissue.

    A. True
    B. False
    B. False
  7. How does the human skeleton compare from the shark skeleton

    A. the shark is composed of cartilage the human is composed of bone
    B. the shark is composed of bone the human is composed of cartilage
    C. they are both composed mainly of cartilage
    D. they are both composed mainly of bone
    A. the shark is composed of cartilage the human is composed of bone
    (this multiple choice question has been scrambled)
  8. True or False:
    Bone is composed of dead mineralized collagen that is added to but not replaced during growth.

    A. True
    B. False
    B. False
  9. Most voluntary movement in a vertebrate body is accomplished by:

    A. Muscles pushing against tubes filled with fluid
    B. Muscles pulling bones to bring them closer together
    C. Muscles pushing against bones to force them apart
    D. Muscles pulsing in waves of contraction to change the shape of the organism
    B. Muscles pulling bones to bring them closer together
    (this multiple choice question has been scrambled)
  10. Which statement best reflects haw contraction of a muscle fiber is accomplished?

    A. calcium causes the actin fibers to contract
    B. calcium causes the myosin fibers to contract
    C. calcium and ATP cause both actin and myosin fibers to contract
    D. ATP powers a sliding of actin fibers past myosin
    D. ATP powers a sliding of actin fibers past myosin
    (this multiple choice question has been scrambled)
  11. How does the smooth muscle of blood vessels, stomach and intestine differ from skeletal
    muscle?

    A. Smooth muscle is involuntary, skeletal muscle is voluntary
    B. Smooth muscle is voluntary, skeletal muscle is involuntary
    C. skeletal muscle does not use calcium
    D. Only smooth muscle is controlled by nerve impulses
    A. Smooth muscle is involuntary, skeletal muscle is voluntary
    (this multiple choice question has been scrambled)
  12. What sort of a signal causes a skeletal muscle to contract?

    A. An adjacent nerve cell releases a chemical neurotransmitter
    B. An adjacent nerve cell releases an electrical signal
    C. An adjacent nerve cell releases calcium
    D. An adjacent nerve cell releases ATP
    A. An adjacent nerve cell releases a chemical neurotransmitter
    (this multiple choice question has been scrambled)
  13. How does the circulatory system of a human compare with that of an·insect?

    A. the human has a closed system, the insect is open
    B. both the human and the insect are closed
    C. the human has an open system, the insect is closed
    A. the human has a closed system, the insect is open
    (this multiple choice question has been scrambled)
  14. Which of the following systems does not exchange with the circulatory system in vertebrates?

    A. digestive system
    B. respiratory system
    C. excretory system
    D. cells and interstitial fluid
    E. all of the above exchange with the circulatory system
    E. all of the above exchange with the circulatory system
  15. Blood from the left ventricle goes:

    A. to the right ventricle
    B. to the aorta and the body
    C. to the left atrium
    D. to the right atrium
    E. to the pulmonary artery and the lung
    B. to the aorta and the body
    (this multiple choice question has been scrambled)
  16. The bulk of oxygen in the blood is carried

    A. bound to hemoglobin in the red blood cells
    B. dissolved in the plasma
    C. bound to hemoglobin in the plasma
    D. dissolved in the cytoplasm of the red blood cells
    A. bound to hemoglobin in the red blood cells
    (this multiple choice question has been scrambled)
  17. Compare the speed of liquid flow in capillaries and the aorta.

    A. faster in capillaries because they are narrower
    B. slower in capillaries because they are narrower
    C. faster in capillaries because the total diameter
    of all the capillaries is greater than the diameter of the aorta
    D. slower in capillaries because the total diameter of all the capillaries is greater than the diameter of the aorta
    E. the same because the total volume of blood is constant
    D. slower in capillaries because the total diameter of all the capillaries is greater than the diameter of the aorta
  18. During countercurrent exchange in fish gills,
    where blood first enters the gills:

    A. Oxygen-rich blood encounters oxygen-poor water
    B. Oxygen-poor and oxygen-rich blood mix together with oxygen-rich water
    C. Oxygen-poor blood encounters oxygen-poor water
    D. Oxygen-rich blood encounters oxygen-rich water
    E. Oxygen-poor blood encounters oxygen·rich water
    C. Oxygen-poor blood encounters oxygen-poor water
    (this multiple choice question has been scrambled)
  19. The air sacks of the lung where gas exchange takes place are called:

    A. villi
    B. lacteal
    C. trachea
    D. cecum
    E. alveoli
    E. alveoli
    (this multiple choice question has been scrambled)
  20. Essential amino acids are

    A. those that the body synthesizes
    B. those the body uses most
    C. those the body can not synthesize
    D. those that are present in all body proteins
    E. those that are the most abundant in the body
    C. those the body can not synthesize
    (this multiple choice question has been scrambled)
  21. Given an equal serving weight

    A. carbohydrates have more calories than fats
    B. fats have more calories than carbohydrates
    C. Fats and carbohydrates have the same calorie
    content
    B. fats have more calories than carbohydrates
    (this multiple choice question has been scrambled)
  22. The digestion of starch begins:

    A. in the duodenum
    B. in the large intestine
    C. in the small intestine
    D. in the stomach
    E. in the mouth
    E. in the mouth
    (this multiple choice question has been scrambled)
  23. The pH of the stomach is:

    A. highly acidic
    B. Highly basic
    C. Neutral (ph about 7)
    A. highly acidic
    (this multiple choice question has been scrambled)
  24. How is glucose concentration in the blood regulated?

    A. When the concentration is high insulin causes
    glucose to be removed from blood
    B. When the concentration is low insulin causes
    glucose to be removed from blood
    C. When the concentration is high insulin causes
    glucose to be added to blood
    D. When the concentration is low insulin causes
    glucose to be added to blood
    A. When the concentration is high insulin causesglucose to be removed from blood
  25. What mechanisms are not used in the production of urine by the mammalian kidney?

    A. Pressure filtration
    B. reabsorption of water
    C. selective reabsorption of salts
    D. All the above are used in the production of urine
    D. All the above are used in the production of urine
  26. In most circumstances,how does the solute (salts
    and urea) concentration of mammalian urine in the
    bladder compare with that of blood entering
    the kidney?

    A. the solute concentration in the urine is higher
    B. the solute concentration in the urine is about the same as in the blood
    C. the solute concentration in the urine is lower
    A. the solute concentration in the urine is higher
    (this multiple choice question has been scrambled)
  27. Which of the following pathways is most common in the nervous system?

    A. sensory neuron - motor neuron - interneuron
    B. motor neuron - sensory neuron - interneuron
    C. motor neuron - interneuron - sensory neuron
    D. sensory neuron - interneuron - motor neuron
    E. interneuron - sensory neuron - motor neuron
    D. sensory neuron - interneuron - motor neuron
    (this multiple choice question has been scrambled)
  28. What is the correct path for the flow of the signal in a single neuron

    A. synaptic terminal (release neurotransmitter) dendriteaxon
    B. axonsynaptic terminal (release neurotransmitter) dendrite
    C. synaptic terminal (release neurotransmitter)
    axondendrite
    D. dendrite - synaptic terminal (release neurotransmitter) axon
    E. dendrite - axon - synaptic terminal (release neurotransmitter)
    E. dendrite - axon - synaptic terminal (release neurotransmitter)
  29. True or False: Nervous signals are carried along the axon by a wave of depolarization and between nerve cells by neurotransmitters

    A. True
    B. False
    A. True
  30. Autonomic functions like breathing and digestion are controlled by the

    A. medulla oblongata
    B. cerebral cortex
    C. cerebellum
    A. medulla oblongata
    (this multiple choice question has been scrambled)
  31. Which of the following is not true concerning steroid hormones?

    A. they are related to cholesterol in structure
    B. the receptors for them are within the target cell
    C. they are composed of amino acids and the receptors ore on the cell surface
    D. testosterone and estrogen are examples
    E. their ultimate purposeis to activate transcription of specific genes
    C. they are composed of amino acids and the receptors ore on the cell surface
    (this multiple choice question has been scrambled)
  32. Which (if any) of the following is not part of the human endocrine system?

    A. hypothalamus and pituitary
    B. Adrenal glands
    C. ovaries (in females)
    D. testes (in males)
    E. all of the above are part of the human endocrine system
    E. all of the above are part of the human endocrine system

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