Environmental Temperature Regulation
Environmental Temperature Regulation - Related Videos
08:29
Regulating Temperature in the Lab: Applying Heat
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2023
Although many experimental assays are performed at room temperature (RT; ~20-25°C), it is not uncommon for experiments, or parts of experiments, to require some type of temperature regulation. This video discusses the different reasons for and temperatures at which a scientist may want to “keep things warm”. For example, sometime, cells need to be cultured in an environment close to body temperature (~37°C), protein structure needs to be modified (>56°C), or reagents and solutions need to...
08:07
Regulating Temperature in the Lab: Preserving Samples Using Cold
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2023
Preservation of laboratory samples, specimens, and reagents using extreme cold is routinely performed in biomedical research labs. This video will discuss some of the methods for keeping laboratory samples cold and will explain the correct cooling method to use for each experimental requirement. For example, cooling agents, such as ice and dry ice, are typically used when keeping samples cold during experiments. This video discusses the physical properties of the most commonly used cooling...
01:46
Epigenetic Regulation
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2019
Epigenetic mechanisms play an essential role in healthy development. Conversely, precisely regulated epigenetic mechanisms are disrupted in diseases like cancer. In most mammals, females have two X chromosomes (XX) while males have an X and a Y chromosome (XY). The X chromosome contains significantly more genes than the Y chromosome. Therefore, to prevent an excess of X chromosome-linked gene expression in females, one of the two X chromosomes is randomly silenced during early development.
02:58
Regulated Protein Degradation
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2020
It is vital to regulate the activity of enzymatic as well as non-enzymatic proteins inside the cell. This can be achieved either through creating a balance between their rate of synthesis and degradation or regulating the intrinsic activity of the protein. Both these regulation mechanisms play an essential role in the normal functioning of cells. Protein degradation plays two important roles in the cells. It helps to protect cells from misfolded or damaged proteins before they lead to a...
10:48
Aseptic Technique in Environmental Science
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2023
Source: Laboratories of Dr. Ian Pepper and Dr. Charles Gerba - The University of Arizona Demonstrating Author: Luisa Ikner Aseptic technique is a fundamental skill widely practiced in the field of environmental microbiology that requires a balance of mindfulness and practice in the laboratory. Proper use of this technique reduces the likelihood of bacterial or fungal contamination of reagents, culture media, and environmental samples. Aseptic technique is also vital to ensure data integrity and...
FAQs
These heat-transfer pathways move thermal energy in different ways. Conduction transfers heat through direct contact, convection through moving fluids such as air or water, radiation through emitted or absorbed energy, and evaporation through energy loss when liquid becomes vapor. Their combined effects determine how quickly an organism, cell, or biological system gains or loses heat in its surroundings.
Each component changes the movement or balance of heat. Insulation limits heat exchange, ventilation alters air movement, and shading reduces exposure to external heat sources. Heating adds thermal energy, whereas cooling removes it. Selecting among these approaches allows biological systems to maintain conditions that support activity, growth, reproduction, and metabolic function.
Behavioral adjustments allow organisms to respond actively when external conditions change. They can complement insulation, shading, ventilation, heating, or cooling by changing how an organism interacts with its surroundings. This combination is important because environmental temperature regulation depends not only on passive heat transfer but also on responses that help preserve biological homeostasis.
The outcome depends on the surrounding thermal conditions and on which heat-transfer pathways are most influential. Contact with other materials affects conduction, moving air or water affects convection, exposure to radiative sources affects radiation, and available liquid for evaporation affects evaporative cooling. These factors together influence whether suitable conditions for biological activity are maintained.
Researchers can manage thermal conditions around organisms, cells, or biological systems by using approaches such as heating, cooling, ventilation, insulation, or shading. The selected approach depends on the conditions needed for the study. Controlled thermal environments help examine effects on homeostasis, growth, reproduction, metabolic function, and responses to changing external temperatures.
Applications extend across ecology, animal physiology, plant science, laboratory culture, agriculture, and conservation. In each setting, thermal management can help maintain conditions required for biological performance or reveal how organisms respond to environmental change. The same principles therefore connect controlled laboratory systems with managed agricultural environments and natural populations.
Climate change can alter the external temperatures that organisms and biological systems experience. Understanding heat transfer, thermal management, and behavioral responses helps researchers examine how those changes affect survival, growth, reproduction, and metabolic function. This knowledge also supports conservation studies by linking environmental conditions with organismal performance and biological responses.