- Study guides, Class notes & Summaries

Which of the following are stereotypes of science that were discussed? Scientists work alone Most scientific work is done in laboratories Science is a collaborative discipline Scientists come from diverse ethnicities and backgrounds - correct answer Scientists work alone Most scientific work is done in laboratories How do claims relate to science? - correct answer Claims about the natural world are made all the time and science can evaluate these claims. Science can invest...

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10 pages

Written in 2024/2025

Grade A+

Rechga

Enrico's biological parents were both musicians, so he was born with a(n) __________ that included exceptional musical ability, but because he was never exposed to musical instruments or instruction when he was adopted, he never developed his musical ability. - correct answer genotype Errol's father carries two recessive genes for sickle-cell anemia, and Errol's mother carries two normal dominant genes. Therefore, Errol has inherited __________ from his parents. - correct answer...

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8 pages

Written in 2024/2025

Grade A+

Rechga

Describe the structure of a flagellum. How do flagella generate cell motility - correct answer fiberous appendage composed of protein subunits. Flagella rotates counter-clockwise to propel cell foward and clockwise to tumble and change directions. differentiate between the following types of movement observed on a wet mount or hanging drop slide; a. directional motility - correct answer rapid swimming and directional change differentiate between the following types of movement...

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2 pages

Written in 2024/2025

Grade A+

Rechga

Wavefunctions - correct answer a mathematical way of describing the wave-like nature of the electron in 3D schrodinger wave eqn - correct answer Ĥ is the Hamiltonian operator. -If we perform an operation on a wavefunction (si), we get the same wavefunction multiplied by a constant, e -si is an eigenfunction and E is an eigenvalue. eigenvalues are the possible values of a property. eigenfunctions describe the associated energy levels -eigen: characteristic (of the electron...

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10 pages

Written in 2024/2025

Grade A+

Rechga

Binary fission - correct answer Mitosis in bacteria and other unicellular organisms Double helix - correct answer Shape of a DNA molecule Pyrimidines - correct answer Cytosine and thymine Metaphase - correct answer Chromosomes line up along the equator of the cell Nucleotides - correct answer Monomers of DNA Backbone - correct answer Part of DNA made of sugar and phosphate groups Checkpoint - correct answer Occurs at the end of G1 and G2 to ma...

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9 pages

Written in 2024/2025

Grade A+

Rechga

methane bonding - correct answer 4 sp3 hybrids on the C overlapping with 4H (1s) how do C-C sigma bonds form - correct answer by head on overap of C(sp3 hybrids) resulting in a Cinfinity rotational axis -would be assumed that the overlap of the C(sp3) hybrids to form sigma bonds should be unaffected by rotation within the molecule why is a pi overlap distrupted by rotation - correct answer -overlap side on: don't overlap as well as sigma bonds -upon rotation, one coul...

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16 pages

Written in 2024/2025

Grade A+

Rechga

3 Medical radiation science professions - correct answer Diagnostic radiography Nuclear medicine Radiation therapy Type of radiation used in x-rays - correct answer X-rays Ionising Type of radiation used in CT - correct answer X-rays Ionising Type of radiation used in MRI - correct answer Magnetic Non-ionising Type of radiation used in Ultrasound - correct answer Sound waves Non-ionising Analogue radiography - correct answer Film placed under pa...

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4 pages

Written in 2024/2025

Grade A+

Rechga

Identify which activity should be avoided prior to starting an experiment in the microbiology laboratory. - correct answer wearing open toed shoes Only laboratories BSL-3 and higher require fire extinguishers, emergency showers and eye wash stations. - correct answer false What biosafety level is designated for organisms that don't usually cause disease in humans? - correct answer BSL-1 How many biosafety levels are there for selected infectious agents? - correct answe...

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5 pages

Written in 2024/2025

Grade A+

Rechga

What is the definition of forensic science? - correct answer The application of science to maters of the law. What case is described as being the "general acceptance rule" for the admission of scientific evidence? - correct answer Frye v. United States Frye requires that scientific evidence be generally accepted by other scientists in the same field or discipline to be admitted into court as evidence. For example, a drug chemist uses color tests as a means to screen drug sam...

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18 pages

Written in 2024/2025

Grade A+

Rechga

List the characteristics of life (9). - correct answer Order, Response, Reproduction, Adaptation, Growth and development, Regulation, Homeostasis, and Energy processing. Order - correct answer Organisms are highly organized. Even cells perform specialized functions. Sensitivity and Stimuli Response - correct answer Movement toward a stimulus is considered a positive response, movement away from a stimulus is considered a negative response. Reproduction (2) - correct answe...

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118 pages

Written in 2024/2025

Grade A+

Rechga

core concepts of biology - correct answer evolution, structure determines function, information, energy and matter, systems levels of organization - correct answer atoms, molecules, cells, tissues, organs, organism, population, community, ecosystem, biosphere eukaryotes - correct answer organisms made up of one or more cells that have a nucleus and membrane-bound organelles prokaryotes - correct answer cells that do not contain nuclei scientific method - correct a...

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6 pages

Written in 2024/2025

Grade A+

Rechga

What is the atomic number? - correct answer # of protons What is the atomic mass? - correct answer protons + electrons What is an atom with more protons than electrons called? - correct answer cation What is an atom with more electrons than protons called? - correct answer anion What is an isotope? - correct answer Atoms of the same element that have a different number of neutrons What occurs in a redox reaction? - correct answer During a Redox reacti...

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1 pages

Written in 2024/2025

Grade A+

Rechga