Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Osmoregulation in Insects01:47

Osmoregulation in Insects

Malpighian tubules are specialized structures found in the digestive systems of many arthropods, including most insects, that handle excretion and osmoregulation. The tubules are typically arranged in pairs and have a convoluted structure that increases their surface area.
Weak Acid Solutions04:02

Weak Acid Solutions

Few compounds act as strong acids. A far greater number of compounds behave as weak acids and only partially react with water, leaving a large majority of dissolved molecules in their original form and generating a relatively small amount of hydronium ions. Weak acids are commonly encountered in nature, being the substances partly responsible for the tangy taste of citrus fruits, the stinging sensation of insect bites, and the unpleasant smells associated with body odor. A familiar example of a...
Polyprotic Acids03:38

Polyprotic Acids

Acids are classified by the number of protons per molecule that they can give up in a reaction. Acids such as HCl, HNO3, and HCN that contain one ionizable hydrogen atom in each molecule are called monoprotic acids. Their reactions with water are:
pH Scale02:41

pH Scale

Hydronium and hydroxide ions are present both in pure water and in all aqueous solutions, and their concentrations are inversely proportional as determined by the ion product of water (Kw). The concentrations of these ions in a solution are often critical determinants of the solution’s properties and the chemical behaviors of its other solutes. Two different solutions can differ in their hydronium or hydroxide ion concentrations by a million, billion, or even trillion times. A common means of...
Strong Acid and Base Solutions03:22

Strong Acid and Base Solutions

A strong acid is a compound that dissociates completely in an aqueous solution and produces a concentration of hydronium ions equal to the initial concentration of acid. For example, 0.20 M hydrobromic acid will dissociate completely in water and produces 0.20 M of hydronium ions and 0.20 M of bromide ions.
Water: A Bronsted-Lowry Acid and Base02:30

Water: A Bronsted-Lowry Acid and Base

The reaction between a Brønsted-Lowry acid and water is called acid ionization. For example, when hydrogen fluoride dissolves in water and ionizes, protons are transferred from hydrogen fluoride molecules to water molecules, yielding hydronium ions and fluoride ions:

You might also read

Related Articles

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

Sort by
Same author

The intracellular bacteria of the cockroach in relation to symbiosis.

The Journal of parasitology·2010
Same author

EXPERIMENTS ON THE VISIBILITY OF THE POLYHEDRAL VIRUSES.

The Journal of experimental medicine·2009
Same author

ON THE ISOLATION, CULTIVATION AND CLASSIFICATION OF THE SO-CALLED INTRACELLULAR "SYMBIONT" OR "RICKETTSIA" OF PERIPLANETA AMERICANA.

The Journal of experimental medicine·2009
Same author

METHODS FOR THE PURE CULTURE OF CERTAIN PROTOZOA.

The Journal of experimental medicine·2009
Same author

CULTIVATION AND CLASSIFICATION OF "BACTEROIDES," "SYMBIONTS," OR "RICKETTSIAE" OF BLATTELLA GERMANICA.

The Journal of experimental medicine·2009
Same author

BIOCHEMICAL STUDIES ON THE VIRUS AND THE INCLUSION BODIES OF SILKWORM JAUNDICE.

The Journal of experimental medicine·2009

Related Experiment Video

Updated: Jun 19, 2026

Studying the Activity of Neuropeptides and Other Regulators of the Excretory System in the Adult Mosquito
11:30

Studying the Activity of Neuropeptides and Other Regulators of the Excretory System in the Adult Mosquito

Published on: August 24, 2021

HYDROGEN ION CONCENTRATIONS IN THE BLOOD OF INSECTS.

R W Glaser1

  • 1Department of Animal Pathology of The Rockefeller Institute for Medical Research, Princeton, N. J.

The Journal of General Physiology
|October 30, 2009
PubMed
Summary
This summary is machine-generated.

Insect blood pH typically ranges from 6.4 to 8.0 across various species. This study found no link between insect blood pH, age, or developmental stage (metamorphosis).

More Related Videos

A Precise and Quantifiable Method for Collecting Hemolymph from Small Arthropods
03:39

A Precise and Quantifiable Method for Collecting Hemolymph from Small Arthropods

Published on: April 28, 2023

Bioassays for Monitoring Insecticide Resistance
06:30

Bioassays for Monitoring Insecticide Resistance

Published on: December 30, 2010

Related Experiment Videos

Last Updated: Jun 19, 2026

Studying the Activity of Neuropeptides and Other Regulators of the Excretory System in the Adult Mosquito
11:30

Studying the Activity of Neuropeptides and Other Regulators of the Excretory System in the Adult Mosquito

Published on: August 24, 2021

A Precise and Quantifiable Method for Collecting Hemolymph from Small Arthropods
03:39

A Precise and Quantifiable Method for Collecting Hemolymph from Small Arthropods

Published on: April 28, 2023

Bioassays for Monitoring Insecticide Resistance
06:30

Bioassays for Monitoring Insecticide Resistance

Published on: December 30, 2010

Area of Science:

  • Entomology
  • Insect Physiology
  • Biochemistry

Background:

  • The physiological parameters of insects are crucial for understanding their ecological roles and responses to environmental changes.
  • Blood pH (hemolymph pH) is a key indicator of metabolic status and homeostasis in insects.

Purpose of the Study:

  • To determine the normal pH range of insect blood across different species.
  • To investigate potential correlations between insect blood pH and factors such as age and metamorphosis.

Main Methods:

  • Collected hemolymph samples from various insect species, including grasshoppers, houseflies, roaches, Malacosoma americanum, and Bombyx mori.
  • Measured the pH of hemolymph samples using standard laboratory techniques.

Main Results:

  • Observed a general hemolymph pH range of 6.4 to 8.0 across the studied insect species.
  • Specific ranges noted: grasshoppers and houseflies (7.2–7.6), roaches (7.5–8.0), Malacosoma americanum (6.4–7.4), and Bombyx mori (6.4–7.2).
  • No statistically significant correlation was found between hemolymph pH and the age or metamorphic stage of the insects.

Conclusions:

  • Insect hemolymph pH exhibits variability but generally falls within a defined range (6.4–8.0).
  • Age and metamorphosis do not appear to be significant factors influencing hemolymph pH in the observed insect species.
  • These findings contribute to the baseline physiological data for common insect species.