Top answers

Why is gas exchange in the lungs efficient?

Alveoli have a large surface area, allowing more oxygen and carbon dioxide molecules to diffuse across at one time.
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Answered by Christina P. • Biology tutor
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What is the equation for respiration?

glucose + oxygen = carbon dioxide + water
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Answered by Christina P. • Biology tutor
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What are rate limiting factors for Photosynthesis?

Photosynthesis is the process in which energy in the form of sunlight is used to convert water and carbon dioxide into glucose. The factors that limit the rate are carbon dioxide concentration, temperature, ...
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Answered by Megan M. • Biology tutor
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Describe the role of a neuron

A neuron, or a nerve cell takes up, processes and transmits information using electrical and chemical signals and is a basic component of the nervous system. Information is gathered through a process known a...
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Answered by Marie J. • Biology tutor
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Describe the process of oxidative phosphorylation and explain the role of oxygen as the final electron acceptor

NADH and FADH are oxidised to release electrons. The electrons are passed through a series of specialised proteins complexes embedded into the inner membrane. As the electrons are transferred to the next com...
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Answered by Tamsin R. • Biology tutor
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