What are Abiotic Factors? Definition of Abiotic Factors Abiotic factors refer to the non-living physical and chemical elements in an ecosystem that influence and shape the conditions within which living organisms thrive and interact. Types of Abiotic Factors Here is the list of abiotic factors: Abiotic Factor Description Air A mixture of gases essential for … Read more
Ecological levels of organization Organism → Population → Community → Ecosystem → Biome → Biosphere Ecological Level 1 – Organisms Ecological Level 2 – Population Ecological Level 3 – Biological Community Types of Community Depending on how big they are and how independent they are, communities can be put into two groups: Major Community Minor … Read more
What is Soil? Soil Properties Distribution of soil layers Importance of Soil Soil Forming Factors Climate, organisms, relief, parent material, and time are the five major factors that influence the formation of soil. One may say that the local soil environment is determined by the relief, climate, and organisms, which work together to induce weathering … Read more
What is an Ecosystem? Ecosystem Definition An ecosystem is a complex interplay of living organisms and their physical environment, interacting as a functional unit. Characteristics of Ecosystem An ecosystem, as delineated by Smith (1966), possesses several distinct characteristics that underscore its significance in the realm of ecology: In essence, these characteristics elucidate the dynamic nature … Read more
What is a Producer? Types of Producers Phototrophs and chemotrophs are the two most common forms of primary producers. Phototrophs Word origin: photo– (light) + troph (nourishment) On occasion, the terms’secondary producers’ and ‘tertiary producers’ are employed. Animals that devour plants are secondary producers because they “generate” biomass for their predators. Likewise, carnivores that are … Read more
What are Decomposers? Definition of Decomposers Decomposers are organisms that break down dead or decaying organic matter into simpler substances, facilitating nutrient recycling in ecosystems. Common examples include fungi and bacteria. Types of decomposers Decomposers play a pivotal role in the biogeochemical cycling of nutrients within ecosystems. These organisms specialize in breaking down dead organic … Read more
What is Predation? – Predation Definition Characteristics of Predators 1. Physical adaptations 2. Diet and behaviour 3. Camouflage and mimicry 4. Venom 5. Electric fields 6. Physiology Types of Predators Predation comes in four main forms: 1. Carnivory Example of Carnivorous Predation 2. Herbivory Example of Herbivorous Predation 3. Parasitism Examples of Parasitic Predation 4. … Read more
Lentiviral transfection is a method for introducing genetic material into cells. It involves the use of lentiviruses, a type of retrovirus, to deliver the desired DNA into the target cells. Lentiviral transfection has a unique advantage over other transfection methods, in that it can infect both dividing and non-dividing cells, making it useful for a … Read more
Post-glycolysis processes Glycolysis is a process that involves: Glucose + 2 NAD+ + 2 ADP + 2 Pi → 2 pyruvate + 2 NADH + 2 H+ + 2 ATP Glycolysis could not continue indefinitely if all NAD+ was used up and glycolysis would cease. Organisms must be capable of oxidizing NADH back into NAD+ … Read more
Standard protein expression systems, including E. coli, frequently fail to generate folded, monodisperse, or functional eukaryotic proteins (see Small-scale Expression of Proteins in E. coli). Utilizing a eukaryotic system, such as mammalian cells, that includes the required folding and posttranslational machinery is highly advantageous for the expression of these proteins. Using polyethylenimine, we present strategies … Read more
