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Describe and explain the main function of the proximal convoluted tubule in filtration/absorption.

The proximal convoluted tubule is used for selective re-absorption of glucose, water, peptides and other nutrients from the tubule fluid back into the blood. The cells lining this tubule are ciliated, to ens...
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Answered by Holly R. • Biology tutor
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Name an appropriate reducing agent to convert ethanal to ethanol

NaBH4
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Answered by Louis W. • Chemistry tutor
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What is the function of the mitochondria in cells?

The mitochondria is where energy in the form of ATP is produced from glucose
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Answered by Louis W. • Biology tutor
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What are two protein filaments that interact in the sarcomere to cause muscular contraction?

Actin and myosin filaments. Myosin heads bind to actin filaments, and the hydrolysis of ATP causes them to change shape and pull the actin filaments along horizontally.
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Answered by Louis W. • Biology tutor
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What is a gene?

A section of DNA in a chromosome, that codes for the production of a specific protein. Genes have different alleles that provide variation.
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Answered by Tanisha P. • Biology tutor
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