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Related Concept Videos

Vitamins01:30

Vitamins

Vitamins, derived from the Latin word for life, are essential organic substances required in small quantities for optimal growth and overall well-being. Unlike other organic nutrients, vitamins don't act as sources of energy or building materials but rather facilitate these nutrients' utilization by the body. Vitamins are predominantly coenzymes, assisting enzymes in specific chemical actions, like the oxidation of glucose for energy involving B vitamins. Most vitamins are not produced in our...
DC Battery01:21

DC Battery

A conductor needs to be a component of a path that creates a closed loop or full circuit to have a continuous current flowing through it. A current starts to flow if an electric field is created inside an isolated conductor that is not part of a full circuit. The conductor quickly develops a net positive charge at one end and a net negative charge at the other. These charges generate an electric field opposite the direction of the applied electric field, which reduces the current. Eventually,...
Voltmeter01:18

Voltmeter

A voltmeter is an electrical device that measures the potential difference or voltage between two points. It is connected in parallel with the circuit element it is measuring. A parallel connection is used because elements in parallel experience the same potential difference. The voltmeter is represented by the symbol "V ".
An ideal voltmeter would have infinite resistance, so connecting it between two points in a circuit would not alter any of the currents. Real voltmeters always have finite...
Models, Theories, and Laws01:16

Models, Theories, and Laws

Scientists frequently use models to help them comprehend a specific collection of phenomena. In physics, a model is a condensed version of a physical system that is too complex to study thoroughly. One such example is the light wave model; unlike water waves, light waves are typically invisible to us. Nonetheless, it is helpful to think of light as being composed of waves, since investigations show that light behaves like water waves. Since it is impossible to visually see what is genuinely...
Anticoagulant Drugs: Vitamin K Antagonists and Direct Oral Anticoagulants01:18

Anticoagulant Drugs: Vitamin K Antagonists and Direct Oral Anticoagulants

Oral anticoagulants are vital tools in preventing and treating blood clotting disorders. This diverse class of medications can be categorized as vitamin K antagonists, exemplified by warfarin, and direct thrombin inhibitors (DTIs), such as dabigatran, as well as factor Xa inhibitors, including rivaroxaban.
Warfarin, a prominent vitamin K antagonist family member, exerts its effect by inhibiting the enzyme VKORC1 (vitamin K epoxide reductase complex 1). By hindering this enzyme, warfarin...
Protein Folding01:25

Protein Folding

Proteins are chains of amino acids linked together by peptide bonds. Upon synthesis, a protein folds into a three-dimensional conformation, critical to its biological function. Interactions between its constituent amino acids guide protein folding, and hence the protein structure is primarily dependent on its amino acid sequence.
Protein Structure Is Critical to Its Biological Function
Proteins perform a wide range of biological functions such as catalyzing chemical reactions, providing...

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Related Experiment Videos

Vitamin E: Textbooks require updating.

Angelo Azzi1, Jean-Marc Zingg

  • 1Institute of Biochemistry and Molecular Biology, University of Bern, 3012 Bern, Switzerland. angelo.azzi@mci.unibe.ch.

Biochemistry and Molecular Biology Education : a Bimonthly Publication of the International Union of Biochemistry and Molecular Biology
|June 4, 2011
PubMed
Summary
This summary is machine-generated.

Vitamin E

Related Experiment Videos

Area of Science:

  • Biochemistry
  • Nutrition Science

Background:

  • Vitamin E's discovery in 1922 predates extensive research into its functions.
  • Many current textbooks lack updated information on vitamin E, presenting incomplete or inaccurate details.
  • Textbooks often neglect vitamin E and its associated deficiency diseases.

Purpose of the Study:

  • To highlight recent advancements in understanding vitamin E's molecular functions.
  • To address the inaccuracies and omissions in current textbook descriptions of vitamin E.
  • To discuss diseases linked to vitamin E deficiency.

Main Methods:

  • Review of recent scientific literature on vitamin E.
  • Comparative analysis of textbook content versus current research findings.
  • Synthesis of information on molecular functions and deficiency diseases.

Main Results:

  • Significant new findings on vitamin E's roles have emerged since its discovery.
  • Existing textbook information on vitamin E is often outdated, incomplete, or incorrect.
  • The existence and implications of vitamin E deficiency diseases are frequently overlooked.

Conclusions:

  • There is a critical need to update educational materials regarding vitamin E.
  • Current understanding of vitamin E's molecular functions and deficiency-related diseases requires broader dissemination.
  • Accurate and comprehensive information on vitamin E is essential for proper nutritional guidance and clinical practice.