Quick Answer: What Are Physiological Characteristics?

What do biochemical tests determine?

Biochemical tests determine bacterial CO2 requirement, H2S production, urease activity, and growth inhibition by thionin or basic fuchsine, etc.

Commercial biochemical identification systems such as the API 20 NE® (BioMérieux) may be used..

What are cultural characteristics of bacteria?

Some bacteria express certain characteristics, such as the formation of pigment, more strongly at some temperatures than at others. The length of time for which the bacteria is incubated may also affect colonial characteristics such as colony size. The presence of other organisms can interfere with bacterial growth.

What are physiological characteristics of bacteria?

The physiological and biochemical features include data on growth at different temperatures, pH values, salt concentrations, or atmospheric conditions, and data on growth in the presence of various substances such as antimicrobial agents, the presence or activity of various enzymes, and with respect to metabolization …

How do you identify unknown bacteria?

Various steps involved in the identification of unknown bacteria are:Isolation: The importance of this step is to isolate pure colonies of bacteria. … Staining Reactions: … Biochemical reactions: … Indole test: … Methyl Red Test: … Voges Proskauer Test: … Citrate Utilization Test: … TSI:More items…

What are examples of physiological factors?

Physiological factors are things related to your physical body that affect your thinking. For example, when your body’s chemistry is off due to unbalanced nutrition, dehydration, alcohol, etc., the neurotransmitters that control your thinking processes can be affected.

How do you identify bacteria?

When identifying bacteria in the laboratory, the following characteristics are used: Gram staining, shape, presence of a capsule, bonding tendency, motility, respiration, growth medium, and whether it is intra- or extracellular.

What are biochemical characteristics?

The biochemical characteristics of a bacterium provide many traits that are useful for classification and identification. Analyzing the nutritional and metabolic capabilities of the bacterial isolate is a common approach for determining the genus and the species of the bacterium.

What are examples of physiological?

The definition of physiological is the normal functions of a living thing. An example of physiological is a person shedding skin. Of, or relating to physiology. Relating to the action of a drug when given to a healthy person, as distinguished from its therapeutic action.

What is a physiological process?

Physiological processes are the ways in which organ systems, organs, tissues, cells, and biomolecules work together to accomplish the complex goal of sustaining life. Physiological mechanisms are the smaller physical and chemical events that make up a larger physiological process.

What is the purpose of biochemical testing?

The purpose of biochemical tests is to study the organism of interest. Generally, a biochemical test is performed to study the presence or absence of…

What is meant by physiological changes?

Abstract. Physiological changes occur with aging in all organ systems. The cardiac output decreases, blood pressure increases and arteriosclerosis develops. The lungs show impaired gas exchange, a decrease in vital capacity and slower expiratory flow rates.

What is another word for physiological?

What is another word for physiological?biologicalcorporalcorporealfunctionalphysicalphysiologicanatomicalbodilyfleshlycarnal25 more rows

What is a physiological?

1 : of or relating to physiology. 2 : characteristic of or appropriate to an organism’s healthy or normal functioning the sodium level was physiological. 3 : differing in, involving, or affecting physiological factors a physiological strain of bacteria.

What is the difference between psychologically and physiologically?

Physiology covers both physical and chemical processes and is often studied alongside anatomy (the arrangement of the body). Psychology is also a study to do with the body, but this time it focuses on one specific area.

What is the principle of biochemical test?

2. (Sugar Fermentation Test) Aim: To determine the ability of microbes to ferment carbohydrates with the production of an acid and/or gas. Principle: Sugars are metabolized through different metabolic pathways depending on typesof microbial species and aerobic or anaerobic environment .

What is a physiological response?

Physiological response is an automatic reaction that triggers a physical response to a stimulus. … Many of us are also prone to more severe physiological responses to stimuli like stress that tap into what is colloquially known as the “fight or flight” response.

What does physiological cause mean?

Physiologic: Something that is normal, that is due neither to anything pathologic nor significant in terms of causing illness. For example, physiologic jaundice is jaundice that is within normal limits.

What are the biochemical test for bacteria identification?

Biochemical tests that investigate the enzymatic activities of cells are powerful tests in the identification of bacteria. In the research lab, a microbiologist would be begin by examining the cell morphology, colony morphology, Gram stain reaction, and environment from which the bacterium was isolated.