Top answers

Why is the left ventricle thicker than the right ventricle?

The right ventricle only pumps blood to the lungs, which are very near the heart. The left ventricle needs to pump blood to the eintire body, so the greater distance requires higher pressure to make sure the...
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Answered by Marie S. • Biology tutor
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Describe the process of photosynthesis and name three factors that may limit the rate of photosynthesis.

The overall equation for photosynthesis: Light energy Carbon dioxide + water -----> oxygen + glucose During the process of photosynthesis, carbon dioxide from the air and water from the soil is converted ...
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Answered by Amy G. • Biology tutor
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Explain what is meant by the term phenotype?

Expression of a genotype due to interaction with the environment
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Answered by Laura P. • Biology tutor
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How do the different organelles in a eukaryotic cell work together to produce a hormone such as insulin?

Hormones are proteins. Each specific protein is made up of a specific sequence of amino acids. DNA in the nucleus codes for the specific sequence. This DNA is transcribed into mRNA which leaves the nucleus t...
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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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