Gce Model Questions Vol1 2019 Biology Question 5

Practice essay / theory question 5 from the 2019 Gce Model Questions Vol1 Biology examination. This question covers Transport, Circulatory system, Respiratory system, Diffusion, Bulk flow .

Gce Model Questions Vol1 2019 Biology Essay / Theory

Topics: Transport Circulatory system Respiratory system Diffusion Bulk flow

Question 5 GCE_MODEL_QUESTIONS_VOL1 • 2019 • BIOLOGY • essay

Consider the processes involved in the transport of nutrients and gases in the human body.

Question Parts

( a )

Explain how oxygen is transported from the alveoli to the tissues, including the role of haemoglobin.

( b )

A drug is administered intravenously and must reach the brain. Outline the pathway it follows from the injection site to the brain, and discuss two factors that could limit its delivery.

( c )

Compare the mechanisms of bulk flow and diffusion in the circulatory system, giving one example of each and explaining why each is suited to its function.

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About This Question

This is Gce Model Questions Vol1 2019 Biology Question 5. It is one of the essay questions from the 2019 Gce Model Questions Vol1 Biology examination.

The question covers Transport, Circulatory system, Respiratory system, Diffusion, Bulk flow .

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