Catalog Search Results
1) Abiogenesis
Series
Biology essentials volume 010
Publisher
Bozeman Science
Pub. Date
[2011]
Language
English
Description
In this video lesson, Paul Andersen describes how life could have formed on our planet through natural processes. The progression from monomers, to polymers, to protocells, and finally to cells is described. The Miller-Urey experiment is described in detail as well as characteristics of the latest universal ancestor.--Publisher.
Series
Biology essentials volume 030
Publisher
Bozeman Science
Pub. Date
[2011]
Language
English
Description
In this video lesson, Paul Andersen explains important concepts that cannot be explained by simple Mendelian genetics. He begins with a discussion of polygenic inheritance and uses a simulation on height to show how a bell shape curve of phenotypes is produced. He then discusses the importance of linked genes and those that are found on the sex chromosome. A simple punnett square showing the inheritance of the color blind gene is included.--Publisher....
Series
Biology essentials volume 041
Publisher
Bozeman Science
Pub. Date
[2011]
Language
English
Description
In this video lesson, Paul Andersen begins with a discussion of brain lateralization and gives a brief demonstration of tests that were performed on split-brain individuals. He then discusses the major parts of a neuron and explains how action potentials are generated using voltage-gated ion channels. He explains how neurotransmitters transmit messages across a synapse and how these messages can be either inhibitory or excitatory.--Publisher.
4) Biodiversity
Series
Biology essentials volume 055
Publisher
Bozeman Science
Pub. Date
[2011]
Language
English
Description
In this video lesson, Paul Andersen explains the importance of biodiversity. He starts by describing how biodiversity can be species, genetic, or ecosystem diversity. He explains the importance of keystone species in an environment and gives two examples: the jaguar and the sea otter. He finishes with a quote from the father of biodiversity, E.O. Wilson.--Publisher.
Series
Biology essentials volume 042
Publisher
Bozeman Science
Pub. Date
[2011]
Language
English
Description
In this video lesson, Paul Andersen describes the four major biological molecules found in living things. He begins with a brief discussion of polymerization. Dehydration synthesis is used to connect monomers into polymers and hydrolysis breaks them down again. The major characteristics of nucleic acids are described as well as there directionality from 3' to 5' end. Protein structure is described as well as the structure of its monomers, amino acids....
Series
Biology essentials volume 020
Publisher
Bozeman Science
Pub. Date
[2011]
Language
English
Description
In this video lesson, Paul Andersen differentiates between biotic and abiotic factors. He explains how both abiotic and biotic factors can affect organisms at the level of the cell, the population and even the ecosystem. The complexities of biofilms, predator-prey relationships, and food webs are given as illustrative examples.--Publisher.
Series
Biology essentials volume 037
Publisher
Bozeman Science
Pub. Date
[2011]
Language
English
Description
In this video lesson, Paul Andersen discusses cell communication. He begins by explaining how he communicates with other individuals using various forms of electronic communication. He them explains how cells communicate when the distance between them is big, small, and zero. He explains how antigen presenting cells pass information on antigen structure by touching in the immune response. He explains how neurotransmitters are used to transfer and...
Series
Biology essentials volume 028
Publisher
Bozeman Science
Pub. Date
[2011]
Language
English
Description
In this video lesson, Paul Andersen explains how the cell cycle is used to create new cells. The creation of identical diploid daughter cells, through mitosis, is described. The creation of unique haploid daughter cells through meiosis is also described. The importance of cyclin and cyclin dependent kinases to regulate the cell cycle is included.--Publisher.
Series
Biology essentials volume 015
Publisher
Bozeman Science
Pub. Date
[2011]
Language
English
Description
In this video lesson, Paul Andersen explains how cells are selectively permeable with the help of their cell membrane. The main constituents of the cell membrane, including cholesterol, glycolipids, glycoproteins, phospholipids, and proteins are included. The fluid mosaic model is also illustrated. The cell wall in plants, bacteria, and fungi is also discussed.--Publisher.
Series
Biology essentials volume 043
Publisher
Bozeman Science
Pub. Date
[2011]
Language
English
Description
In this video lesson, Paul Andersen describes the structure and function of the major organelles in a eukaryotic cell. The endoplasmic reticulum, ribosomes, and golgi complex produce and store proteins in the cell. Lysosomes dissolve broken and invasive material. Vacuoles store material in plant cells. Mitochondria produce ATP through cellular respiration and chloroplasts use the energy of the sun to produce sugars.--Publisher.
Series
Biology essentials volume 044
Publisher
Bozeman Science
Pub. Date
[2011]
Language
English
Description
In this video lesson, Paul Andersen explains how cells differentiate to become tissue specific. He also explains the role of transcription factors in gene regulation. The location of a cell within the blastula ultimately determines its fate. The SrY gene is an important external stimuli in human development. The heat shock factor is also discussed as an example of an environmental stimuli.--Publisher.
12) Communities
Series
Biology essentials volume 046
Publisher
Bozeman Science
Pub. Date
[2011]
Language
English
Description
In this video lesson, Paul Andersen explains the major classification terms in ecology and how a community can be measured by species composition and species diversity. The symbiosis of leaf cutter ants is included. The lesson ends with a discussion of population growth.--Publisher.
13) Ecosystems
Series
Biology essentials volume 047
Publisher
Bozeman Science
Pub. Date
[2011]
Language
English
Description
In this video lesson, Paul Andersen explains how ecosystems interact with biotic and abiotic factors. He explains and gives examples of food chains and food webs. He shows how limiting factors eventually lead to logistic growth. Real data from Yellowstone Park is used to show how populations interact. He ends the lesson by showing how human impacts can eventually lead to changes within an ecosystem.--Publisher.
Series
Biology essentials volume 014
Publisher
Bozeman Science
Pub. Date
[2011]
Language
English
Description
In this video lesson, Paul Andersen explains how living organisms exchange matter with the environment. The importance of the surface area to volume ratio is emphasized using a simple mathematical model. The essential components for life (water, carbon, nitrogen and phosphorus) are described. Each of these is are vital to the four major macromolecules. A brief description of the biogeochemical cycles is also included.--Publisher.
15) Enzymes
Series
Biology essentials volume 048
Publisher
Bozeman Science
Pub. Date
[2011]
Language
English
Description
In this video lesson, Paul Andersen explains how enzymes are used to break down substrates. The correct shape of the active site allows a key/lock fit between the enzyme and the substrate. The enzyme catalase is used to break down hydrogen peroxide. The importance of cofactors and coenzymes is emphasized. Competitive and allosteric inhibition is also included.--Publisher.
Series
Biology essentials volume 005
Publisher
Bozeman Science
Pub. Date
[2011]
Language
English
Description
In this video lesson, Paul Andersen describes three main characteristics of life that are conserved in all organisms on the planet. The universal genetic code, the central dogma of biology, and shared metabolic pathways give us details of the original universal ancestor. He also explains how eukaryotic cells gained complexity through infolding of the cell membrane and endosymbiosis.--Publisher.
Series
Biology essentials volume 013
Publisher
Bozeman Science
Pub. Date
[2011]
Language
English
Description
In this video lesson, Paul Andersen details the processes of photosynthesis and respiration. Autotrophs use the light reactions and the Calvin cycle to convert energy from the Sun into sugars. Autotrophs and heterotrophs use cellular respiration to convert this sugar into ATP. Both chemosynthesis and fermentation are discussed. The evolution of photosynthesis is also discussed.--Publisher.
18) Gene regulation
Series
Biology essentials volume 031
Publisher
Bozeman Science
Pub. Date
[2011]
Language
English
Description
In this video lesson, Paul Andersen explains how genes are regulated in both prokaryotes and eukaryotes. He begins with a description of lac and trp operons and how they are used by bacteria in both positive and negative response. He also explains the importance of transcription factors in eukaryotic gene expression.--Publisher.
Series
Biology essentials volume 003
Publisher
Bozeman Science
Pub. Date
[2011]
Language
English
Description
In this video lesson, Paul Andersen describes genetic drift as a mechanism for evolutionary change. A population genetics simulator is used to show the importance of large population size in neutralizing random change. The near extinction of the northern elephant is used as an example of the bottleneck effect. The high incidence of total colorblindness due to a typhoon that hit the small island of Pingelap is also included.--Publisher.
Series
Biology essentials volume 033
Publisher
Bozeman Science
Pub. Date
[2011]
Language
English
Description
In this video lesson, Paul Andersen explains how changes in the genotype of an individual can affect the phenotype. He explains how mutations can be neutral, beneficial, or harmful. He also explains how mistakes in the cell cycle can lead to disorder, sterility, or new species.--Publisher.
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