Nutrient Metabolism
Nutrient Metabolism - Related Videos
10:48
Nutrients in Aquatic Ecosystems
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2023
Source: Laboratories of Margaret Workman and Kimberly Frye - Depaul University Nitrogen and phosphorus are essential plant nutrients found in aquatic ecosystems and both are monitored as a part of water quality testing because in excess amounts they can cause significant water quality problems. Nitrogen in water is measured as the common form nitrate (NO3-) that is dissolved in water and readily absorbed by photosynthesizers such as algae. The common form of phosphorus measured is phosphate...
09:13
Hydroponics: A Versatile System to Study Nutrient Allocation and Plant Responses to Nutrient Availability and Exposure to Toxic Elements
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Cited by 102 •
2016
Here, we present an easy-to-follow protocol to establish a successful hydroponic system for plant nutrition studies. This protocol has been extensively tested in Arabidopsis and can easily be adapted to other plant species to study specific nutritional requirements or the effect of non-essential elements on plant growth and development.
10:19
An Introduction to Cell Metabolism
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2023
In cells, critical molecules are either built by joining together individual units like amino acids or nucleotides, or broken down into smaller components. Respectively, the reactions responsible for this are referred to as anabolic and catabolic. These reactions require or produce energy typically in the form of a “high-energy” molecule called ATP. Together, these processes make up “Cell Metabolism,” and are hallmarks of healthy, living cells.JoVE’s introduction to cell metabolism briefly...
01:19
Absorption of Nutrients
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2024
Absorption refers to taking dietary nutrients from the intestinal lumen for transportation throughout the body. After digestion in the small intestine, carbohydrates, proteins, and fats are broken down into simpler forms. These essential macronutrients and other vital substances, such as vitamins, minerals, and water, are then prepared for absorption into the bloodstream. Enterocytes, which are specialized polar epithelial cells, line the mucosa of the small intestinal walls. These cells...
13:31
Soil Nutrient Analysis: Nitrogen, Phosphorus, and Potassium
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2023
Source: Laboratories of Margaret Workman and Kimberly Frye - Depaul University In this experiment, three soil macronutrients are chemically extracted, combined with color-based reagents, then analyzed using color to determine the nutrient concentration present in the soil sample. Nitrogen, phosphorus, and potassium are the main components of soil fertilizer. These methods isolate each nutrient from the soil into a solution that can be analyzed using turbidity and color to determine the...
FAQs
Hormones and cellular energy status act as coordinating signals that adjust the relative activity of catabolic and anabolic pathways. When nutrient-derived energy or cellular demands change, this regulation helps direct biochemical resources toward energy production, macromolecule synthesis, or other cellular needs. Such coordination allows cells to respond to changing nutrient availability while supporting energy balance and homeostasis.
Catabolic pathways break nutrients into products that can serve more than one purpose: they may contribute to energy production or become raw materials for biosynthesis. Anabolic pathways then use available products to build macromolecules and other cellular components. This connection links nutrient breakdown with growth, repair, and regulation rather than treating degradation and synthesis as isolated processes.
Changing nutrient availability can alter which biochemical pathways cells emphasize and how they allocate metabolic products. Cells may need to adjust the balance between nutrient breakdown, energy generation, and synthesis of cellular materials. Investigating these shifts reveals how organisms adapt to their environment and helps explain the relationship between nutrient metabolism, cellular regulation, and homeostasis.
A pathway-focused investigation may follow carbohydrate processing through glycolysis and the citric acid cycle, alongside fatty acid oxidation for lipid utilization. Researchers can then consider how the resulting products support energy generation or enter anabolic processes. Examining these connected routes provides a framework for interpreting how different nutrient classes contribute to cellular activity and energy balance.
In nutrition research, nutrient metabolism provides a framework for examining how carbohydrates, fats, proteins, vitamins, and minerals support energy, cellular materials, and regulation. In exercise physiology, the same framework helps investigate how energy requirements relate to nutrient use. These applications connect biochemical pathways with broader questions about energy balance, adaptation, and organismal function.
Nutrient metabolism offers a way to examine how altered biochemical pathways may affect energy balance, cellular building blocks, regulatory molecules, and homeostasis. Studying pathway coordination, hormonal influence, and responses to nutrient availability can therefore support investigations of metabolic disorders and disease. The same principles also help relate cellular biochemical changes to organism-level consequences in biology.