Explain how carbon dioxide is transported in the blood. What will be an ideal response?
Concepts to Consider: Approximately 10% of CO2 dissolved in plasma; 30% combines
with hemoglobin, forming carbaminohemoglobin; 60% transported in plasma as bicarbonate
ions. CO2 combines with water to form carbonic acid by the enzyme carbonic anhydrase.
Carbonic acid dissociates and forms hydrogen ions and bicarbonate ions.
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Which statement is true?
a. A cell placed in an isotonic solution will swell. b. A cell placed in a hypotonic solution will swell. c. A cell placed in a hypotonic solution will shrink. d. A cell placed in a hypertonic solution will remain the same size. e. A cell placed in a hypertonic solution will swell.
Which part of the brain interacts intimately with the limbic system?
a. Broca's area b. the prefrontal cortex c. the cerebellum d. the cingulate gyrus e. the medulla oblongata
The study of the spatial arrangement of elements in communities and ecosystems is known as
A. community ecology. B. ecosystem ecology. C. landscape ecology. D. population ecology. E. global ecology.
The role of water in photosynthesis is to
A) maintain turgor pressure. B) provide H2. C) provide oxygen. D) provide electrons.