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The partial pressure gradient for oxygen (in the body)is much steeper than that for carbon dioxide.Explain how equal amounts of these two gases can be exchanged (in a given time interval)in the lungs and at the tissues.
Nucleus
The central part of an atom containing protons and neutrons, or a membrane-enclosed organelle found in eukaryotic cells that contains the genetic material.
Chromosomes
Thread-like structures located inside the nucleus of animal and plant cells, made of protein and a single molecule of deoxyribonucleic acid (DNA).
Cell
The smallest structural and functional unit of an organism, typically microscopic and consisting of cytoplasm and a nucleus enclosed in a membrane.
44 Chromosomes
An atypical number of chromosomes in humans, which usually have 46. This condition can lead to certain genetic disorders or syndromes.
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