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What is the name of the valve responsible for preventing blood flow from the left ventricle to the left atrium of the heart?

Mitral Valve The mitral valve is a large 'flap' between the two left chambers of the heart. When this is open, it allows oxygenated blood to fill the left ventricle of the heart from the atrium. When the hea...
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Answered by Ella H. • Biology tutor
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What are enzymes and what factors are they affected by?

Enzymes are proteins that catalyze nearly all reactions that go on in your body that would otherwise be too slow for survival. The substances or molecules that enzymes catalyze are called substrates , and th...
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Answered by Beatrice H. • Biology tutor
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c) What is the medical treatment of patients with kidney failure to remove urine and control levels of sodium and glucose in the blood?

Kidney dialysis
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Answered by Claire P. • Biology tutor
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How does the collecting duct aid in the control of the concentration of urine?

When the concentration of urine is low, the blood will reabsorb more water from the collecting duct. This is via the action of ADH increasing the permeability of the collecting duct walls (via aquaporins). (...
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Answered by Claire P. • Biology tutor
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Describe the function of the Bowmans's capsule

The Bowman’s capsule, part of the filtration unit that removes glucose, salt, water, amino acids and urea out of the blood into the nephron.
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Answered by Claire P. • Biology tutor
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