Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Feedback Inhibition

Feedback Inhibition

Biochemical reactions are occurring constantly in cells, converting starting substances to different products, usually with the help of enzymes that speed the reactions. Without enzymes, it would take far too long for most reactions to occur to be useful to the cell!

Feedback Loops

Feedback Loops

In most cases, excessive hormone production is prevented by negative feedback—a loop that starts with a stimulus inducing the release of a particular substance, like a hormone, to maintain a certain level before triggering a signal that results in a decrease in further release of the hormone.

Proofreading

Proofreading

Proofreading

Proofreading

Synthesis of new DNA molecules is carried out by the enzyme DNA polymerase, which adds nucleotides on the daughter strand complementary to the template DNA strand. DNA polymerase has a higher affinity to add the correct base and ensures fidelity during DNA replication. Furthermore, it exhibits proofreading activity during replication, using an exonuclease domain that cuts off incorrect nucleotides from the nascent DNA strand.
Errors During Replication are Corrected by the DNA Polymerase Enzyme

Allergic Reactions

Allergic Reactions

Contact-dependent Signaling

Contact-dependent Signaling

Contact-dependent signaling, as the name suggests, requires that communicating cells be in direct contact with each other. This is achieved either through receptor-ligand interactions or by specialized cytoplasmic channels that allow the flow of small molecules between cells. In animal cells, channels called gap junctions facilitate contact-dependent signaling in certain tissues, whereas, plasmodesmata perform a similar function in plants.
Gap Junctions
In animal cells, gap junctions are formed...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

Perioperative Antibiotics in Sialendoscopy: A Retrospective Cohort Study.

The Laryngoscope·2025

Same author

Rate of occult metastasis in lip squamous cell carcinoma: A systematic review and meta-analysis.

Head & neck·2024

Same author

Proposal for standardized ultrasound analysis of the salivary glands: Part 1 submandibular gland.

Laryngoscope investigative otolaryngology·2024

Same author

Traumatic Injuries of the Parotid Gland and Duct.

Otolaryngologic clinics of North America·2023

Same author

A modular surgical simulator for microlaryngoscopy using standard instruments and the carbon dioxide laser.

Laryngoscope investigative otolaryngology·2022

Same author

An Updated Patient-Centered Sialadenitis Instrument: The Obstructive Salivary Problem Impact Test (SPIT).

The Laryngoscope·2022

Search research articles

Related Experiment Video

Updated: May 22, 2026

Light/dark Transition Test for Mice

Light/dark Transition Test for Mice

Published on: November 13, 2006

Authors' reply

Celeste Gary¹, Evelyn A Kluka, Barry Schaitkin

¹Department of Otolaryngology Head Neck Surgery, LSU Health Sciences Center, New Orleans, LA.

Journal of Indian Association of Pediatric Surgeons

|April 25, 2012

Summary

No abstract available in PubMed .

Related Experiment Videos

Last Updated: May 22, 2026

Light/dark Transition Test for Mice

Light/dark Transition Test for Mice

Published on: November 13, 2006