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Describe the basic structure of a cell membrane?

Made of structrues called phospholipids with a polar, hydrophobic head region and a non-polar hydrophillic region. Formation of a bilayer. Contains cholesterol which binds to the fatty acid tails to add sten...
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Answered by Kaylan P. Biology tutor
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What is a hormone and what do they do?

A hormone is a chemical messenger which travels in the blood. Hormones cause other tissues and organs to either produce other hormones or carry out chemical reactions. Water-soluble hormones cause this by bi...
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Answered by Amber D. Biology tutor
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Could you help me to understand how DNA replication works?

In order to answer your question let's separate replication process into steps. Step 1: Unwinding of double-stranded DNA The first step of DNA replication involves binding of helicase enzyme that unwinds and...
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Answered by Raminta K. Biology tutor
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Why do we use aseptic techniques in laboratories?

Aseptic techniques prevent the contamination of a sample from other bacteria or pathogens. It is important to do this to ensure that the sample we are dealing with remains pure. Microorganisms are in the env...
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Answered by Emma B. Biology tutor
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What are the components and function of the autonomic nervous system in the human body?

There are 2 components, the sympathetic nervous system and the parasympathetic nervous system. They are a collection of nerves and neurotransmitters throughout the human body and present in both the central ...
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Answered by Pierce B. Biology tutor
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