Steroids

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5 Terms

1
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Steroids

  • A type of lipid composed of 4 fused carbon rings

  • found in animal products

  • generally non polar and not water-soluble (hydrophobic)

  • different steroids have different arrangements of atoms and functional groups attached to their rings


Examples: Cholesterol estrogen, and Testosterone


<ul><li><p>A type of lipid composed of 4 fused carbon rings</p></li><li><p>found in animal products</p></li><li><p>generally non polar and not water-soluble (hydrophobic)</p></li><li><p>different steroids have different arrangements of atoms and functional groups attached to their rings</p></li></ul><p></p><p>Examples: Cholesterol estrogen, and Testosterone</p><p></p>
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Cholesterol

  • A type of steroid made by the body that also enters the body through our diet

  • make up part of the animal cell’s plasma membrane

  • Acts as a precursor for other steroids, such as estrogen and testosterone, and for bile salts


<ul><li><p>A type of steroid made by the body that also enters the body through our diet</p></li><li><p>make up part of the animal cell’s plasma membrane</p></li><li><p>Acts as a precursor for other steroids, such as estrogen and testosterone, and for bile salts</p></li></ul><p></p>
3
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Sex hormones (Estrogen and Testosterone)

  • Steroid hormones made from cholesterol

  • act as chemical messengers within our bodies

  • have the same basic 4 ring steroid structure but different attached groups

  • These differences affect their function


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HDL (High-Density Lipoprotein)

  • Known as good cholesterol

  • Carries excess cholesterol from the blood and tissues back toward the liver

  • helps remove excess cholesterol from the bloodstream


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LDL (Low-Density Lipoprotein)

  • Known as bad cholesterol

  • Carries cholesterol from the liver to body cells

  • Too much LDL cab cause cholesterol buildup in arteries

  • Can increase the risk of heart disease