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 secrethog,zj0iiy 75f.d6 zpes melatonin?

A. Pineal

B. Pituitary

C. Hypothalamus

D. Adrenal

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2#

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2. Which of the following are w wn i,+tvf;ba 8((vetfunctions of the cerebellum?
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 followykgo n) 6-32aqzkeek,ing the release of epinephrine (adrenalin)? e )nzqe,ako2-gkk3 y6
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 voluntary stimulation of skeletalt wwn/* i-5 e ahc/gfv:i8af)z ,-frz(gtgom3 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 ar g iftb5gt;w:h2:qg nzy7 q19ptb6 p.drows show the direction of the nerve impulses. :p;b d7pq1 6. qg29:ibwfg5hzy nt ttg
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 +4hzdm m*r,ppthe brain

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9#

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7. Discuss the voluntary and involuntary roles of the nervous syste 909bd ll/jhzp1(nyvpx6o7ae;db : gem in the movement of food into, through ao;p 9a1jz7hlgd0(:b/xebn l6 9pdyev nd out of the intestines.

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10#

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8. A rise in blood pH, caused b1b9ca5xp+dadf5 up /1 ,ktd etaslf:4 y an increase in carbon dioxide concentration, will cause an increase in ba+ddpb5ukstpe/ dlx:1,4 f9t a5 cfa 1reathing rate and tidal 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 anso g2y, 7vi:kcd ethene (ethylene) production.

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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 develo7h4mtcdz e 0u arqkc83 59)wf dcjr-5m5qbbj )pment 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 deveq xe/)vxvby+l dx3 ,-slopment

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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 ox k+/ s0odq mvjxtyf4,5ysal 70y7.htf a stem.

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