Question

question 9
blood transports carbon dioxide mainly as:
a hemoglobin
b carbon dioxide
c bicarbonate or carbonic acid
d glucose
e erythropoietin

question 10
what part of the brain is responsible for the control of respiration?
a cerebral cortex
b medulla
c cerebellum
d hypothalamus

Explanation:

Question 9: Blood transports most CO₂ as bicarbonate (via reaction with water to form carbonic acid, then dissociation) rather than bound to hemoglobin or dissolved.
Question 10: The medulla oblongata contains respiratory centers that regulate breathing rate and depth.

Answer:

Question 9: C. Bicarbonate or carbonic acid
Question 10: B. medulla