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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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Describe what happens to fish protein in the human stomach.

Digestion takes place in the stomach. Aside from physical digestion due to churning of the stomach muscle, chemical digestion is also important whereby hydrochloric acid produced by the stomach of pH 2, as w...
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Answered by Panos L. • Biology tutor
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Respiration and photosynthesis-what are the similarities and differences?

Respiration in both animals and plants Photosynthesis only in plants Will explain further in interview
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Answered by Abuzar A. • Biology tutor
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What are receptors?

Receptors are a group of specialised cells that are used by the body to detect different stimuli (changes in the environment). Receptors are most common in sensory organs like the eyes, ears and the skin. Ad...
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Answered by Kirsty S. • Biology tutor
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