Homeostasis and Negative/Positive Feedback
นอกจากการดูบทความนี้แล้ว คุณยังสามารถดูข้อมูลที่เป็นประโยชน์อื่นๆ อีกมากมายที่เราให้ไว้ที่นี่: ดูความรู้เพิ่มเติมที่นี่
Explore homeostasis with the Amoeba Sisters and learn how homeostasis relates to feedback in the human body. This video gives examples of negative feedback (temperature and blood glucose regulation) and positive feedback (events in childbirth). Handout available here: http://www.amoebasisters.com/handouts See table of contents below 👇
Table of Contents:
Intro 00:00
Homeostasis 0:21
Negative Feedback (and how this keeps homeostasis) 1:50
Positive Feedback 4:05
The Amoeba Sisters videos demystify science with humor and relevance. The videos center on Pinky’s certification and experience in teaching biology at the high school level. For more information about The Amoeba Sisters, visit:
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The Lac operon | Regulation of gene expression
The lac operon (lactose operon) is an operon required for the transport and metabolism of lactose in Escherichia coli and many other enteric bacteria. The lac operon allows for the effective digestion of lactose when glucose is not available through the activity of betagalactosidase. Gene regulation (regulation of gene expression) of the lac operon was the first genetic regulatory mechanism to be understood clearly, so it has become a foremost example of prokaryotic gene regulation. This lactose metabolism system was used by François Jacob and Jacques Monod to determine how a biological cell knows which enzyme to synthesize. Their work on the lac operon won them the Nobel Prize in Physiology in 1965.
Enzyme function and inhibition (with audio narration)
This was created over a couple of days to demonstrate how a simple animation can be used as a learning aid for scientific concepts that may be difficult for a student to grasp. The audio came out quieter than expected, so you may have to turn up your speakers slightly.
In the above animation, the normal enzyme catalytic cycle is shown and is followed by two types of inhibition by competitive and noncompetitive blockers.
Feel free to contact me if you have any questions or comments.
Competitive inhibition | Energy and enzymes | Biology | Khan Academy
Seeing how an inhibitor can “compete” for an enzyme with the intended substrate. This often happens at the active site, but the inhibitor could also bind at an allosteric site.
Watch the next lesson: https://www.khanacademy.org/science/biology/energyandenzymes/enzymeregulation/v/noncompetitiveinhibition?utm_source=YT&utm_medium=Desc&utm_campaign=biology
Missed the previous lesson? https://www.khanacademy.org/science/biology/energyandenzymes/enzymeregulation/v/enzymecofactorsandcoenzymes?utm_source=YT&utm_medium=Desc&utm_campaign=biology
Biology on Khan Academy: Life is beautiful! From atoms to cells, from genes to proteins, from populations to ecosystems, biology is the study of the fascinating and intricate systems that make life possible. Dive in to learn more about the many branches of biology and why they are exciting and important. Covers topics seen in a high school or firstyear college biology course.
About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using stateoftheart, adaptive technology that identifies strengths and learning gaps. We’ve also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content.
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ปฏิบัติการ Virology: Hemagglutination (HA) & Hemagglutination Inhibition (HI) Assays
ปฏิบัติการ Virology: Hemagglutination (HA) & Hemagglutination Inhibition (HI) Assays
ในวิชา PHA62201 Human Medical Science Laboratory II หรือ วิทยาศาสตร์การแพทย์ของมนุษย์ 2
จัดทำโดย
สำนักวิชาเภสัชศาสตร์ศาสตร์ ร่วมกับ ศูนย์เครื่องมือวิทยาศาสตร์และเทคโนโลยี มหาวิทยาลัยวลัยลักษณ์
CSEPR CSEWU WALAILAK RXWU Virology
Credit
Director and Screenwriter: Aruna Pr.
Camera Operator: Natee S. and Chaichana S.
Actor : Aruna Pr.
Editor: Natee S.
Support Team: Chanyaporn K. and Sasithorn P.
Music: Royalty Free Music by Bensound | Stock Musicwww.bensound.com
นอกจากการดูหัวข้อนี้แล้ว คุณยังสามารถเข้าถึงบทวิจารณ์ดีๆ อื่นๆ อีกมากมายได้ที่นี่: ดูบทความเพิ่มเติมในหมวดหมู่wiki tại đây