Lipids, Fats and Oils
Über den Vortrag
Der Vortrag „Lipids, Fats and Oils “ von Georgina Cornwall, PhD ist Bestandteil des Kurses „The Macromolecules of Life“.
Quiz zum Vortrag
Which of the following is NOT correct about lipids?
- Lipids are saturated fats that have long hydrocarbon tails and multiple carbon-carbon double bonds.
- Lipids are nonpolymer macromolecules that are predominantly composed of hydrocarbon chains.
- Fats, oils, waxes, terpenes, steroids, and phospholipids are examples of lipids.
- A fatty acid in the cis configuration has two –R groups on the same side of the carbon-carbon double bond.
- Lipids are structural components that also help in energy storage and cell signaling.
Why are vegetable oils liquid at room temperature?
- The kinkiness in unsaturated hydrocarbon chains does not allow them to stack on top of each other, keeping vegetable oils in a liquid state at room temperature.
- Vegetable oils cannot solidify due to high molecular vibrations in the fully saturated hydrocarbon chains.
- Vegetable oils are liquid at room temperature due to the absence of a metal catalyst.
- Vegetable oils cannot solidify due to low molecular vibrations in the fully saturated hydrocarbon chains.
- Vegetable oils cannot solidify due to the larger number of hydrogen atoms in the fully saturated hydrocarbon chains.
Why are trans fats harmful to health?
- Trans fats increase low-density lipoprotein (LDL) cholesterol levels and lower high-density lipoprotein (HDL) cholesterol levels, increasing the risk of coronary artery disease and metabolism-related disorders.
- Trans fats lower LDL cholesterol levels and increase HDL cholesterol levels, increasing the possibility of brain hemorrhages.
- Trans fats lower LDL and HDL cholesterol levels in the blood, increasing the possibility of liver degeneration.
- Trans fats raise LDL and HDL cholesterol levels in the blood, increasing the risk of liver degeneration.
- Trans fats raise LDL and HDL cholesterol levels in the blood, increasing the risk of intestinal bleeding.
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Dozent des Vortrages Lipids, Fats and Oils
Georgina Cornwall, PhD
Dr. Georgina Cornwall is a Biology Instructor and currently works as an Instructional Designer in the private sector, developing interactive online training materials.
She obtained her PhD in Environmental, Population, and Organismic Biology at the University of Colorado, USA, in 2000, and has since taught a broad array of biology courses at various US universities.
She is an active promoter of hybrid/online teaching formats and interactive courses, and has received several awards for her engaging and innovative course design; e.g., she was named Adjunct Faculty of the Year at Colorado Mountain College in Aspen twice.
Within Lecturio, Dr. Cornwall teaches courses on Biology & Genetics.
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I loved the correlation with margarine and butter, it helps to understand and remember the topic.
