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Firstly, blood from the IVC (inferior vena cava), carrying deoxygenated blood from most of the body, after oxygen has been removed from the blood, diffused into the tissues and used for respiration, enter...
Smoking can cause carbon monoxide poisoning, meaning that carbon monoxide is carried in the blood via red blood cells instead of oxygen, leading to fatigue. Smoking can also cause lung cancer, as it conta...
De-oxygenated blood enters the right atrium from the Vena Cava, it then passes into the right ventricle due to gravity and the contraction of the walls of the right atrium. The walls of the right ventricl...
Nucleus - contains the DNA allowing it to control the cells activities. It is the site of transcription where DNA is made into RNA. Ribosomes - the site of protein synthe...
The (passive) movement of water from an area of high water potential to low water potential across a partially permeable membrane
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