SL/HL Topic C3.1 Integration of body systems - 无忧得胜-网上国际课程 (5edu.win)

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1#

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1. Which endocrine gland secretes melaton7ex1d6imqy,)id;im +rn7)dx 5i ajzlin?

A. Pineal

B. Pituitary

C. Hypothalamus

D. Adrenal

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2#

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2. Which of the following are functions of the cerebe1(y1fuv:adlk 8 cz9 opllum?
I. Coordination of skeletal muscle contraction.
II. Voluntary movement of the limbs.
III. Maintenance of balance.
IV. Perception of pain.

A. All of the above.

B. I and III only.

C. II and IV only.

D. I only

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3#

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3. Which of the following occur following the release of epv mmx/+ *lhw6uinephrine (adrenalin)/uvx hw+ lm6m*?
I. Increase in blood pressure.
II. Conversion of glucose to glycogen in muscle cells.
III. Decrease in blood circulation to the intestines.
IV. Dilation of the bronchioles.

A. All of the above.

B. II and III only.

C. I and IV only.

D. I, III and IV only

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4#

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4. Which area of the brain initiates volunt(5m+ fvmpa7k aary stimulation of skeletal muscle?

A. Cerebral hemispheres.

B. Corpus callosum.

C. Medulla.

D. Cerebrum.

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5#

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5. The diagram shows a spinal reflex arc. The red arrows show the d8i zw7bouu t6 fwk;y++irection of the nerve impulseswzu8 +y7o6w+tfk ; iub.
In the table below, give the labels of the numbered components of the reflex arc and outline their function.

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6#

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6. Outline the role of the following in the control of the heart rate.

I. Baroreceptors

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7#

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6. Outline the role of the following in the control of the heart rate.

II. Chemoreceptors

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8#

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6. Outline the role of the following in the control of the heart rate.

III. The medulla of the brain,;5onw2yix zgx8 k8rl*zsk/o

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9#

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第 3 题组 (共 2 题 2 分)

7. Discuss the voluntary and involuntary roles of the nervous system ik* -qk4h *hj pd15dmdqn the movement of food in-1jk q hqp4*hdd5k *dmto, through and out of the intestines.

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10#

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8. A rise in blood pH, caf.zejjca e5a8i r 4 -v9ad;e:sz5z6 viused by an increase in carbon dioxide concentration, will cause an increase in breathing rate and tidal daea9.;a4zeszj 5z vi6r 5:j fevci8-volume. This often occurs during exercise.

Outline how feedback control mechanisms restore the breathing rate and tidal volume to resting levels while resting after exercise.

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11#

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9. Plant growth is coordinated by various signalling chemicals. These chemicals cause growth responses which require a coordinated response. Outline how coordination is achieved in the following responses:

a. Fruit ripening and ethene (ethylene) productio 3vwmyipxe,-wxmjk 0v1205 hjn.

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12#

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9. Plant growth is coordinated by various signalling chemicals. These chemicals cause growth responses which require a coordinated response. Outline how coordination is achieved in the following responses:

b. Auxin secretion into the apoplast and developmen4 eggm1c;a*y,c srva2 t of plant cells.

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13#

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9. Plant growth is coordinated by various signalling chemicals. These chemicals cause growth responses which require a coordinated response. Outline how coordination is achieved in the following responses:

c. Shoot and root growth and d d 1b809j0)dz6 iv bxqbeik+osevelopment

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14#

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9. Plant growth is coordinated by various signalling chemicals. These chemicals cause growth responses which require a coordinated response. Outline how coordination is achieved in the following responses:

d. Auxin effluent pumps and the positive phototropic response of ap a.rfhgz,4.jqt ood+3(8bxk stem.

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