Cell fractionation Study guides, Class notes & Summaries

Chapter 6 A Tour of the Cell This chapter introduces the topics of microscopy and cell fractionation, followed by a review of the cell and the major organelles and structures of eukaryotic cells. A challenge with this chapter is to keep this data from simply being a list of parts. In addition to the structure and function of individual organelles, questions probe student understanding of the cell as a dynamic, interconnected system: the flow of membrane and proteins in the endomembrane system...

Biology 1406 Chapter 6 Light Microscope - correct answer (microscope) where visible light is passed through the specimen and then through glass lenses. The lenses refract the light in such a way that the image of the specimen is magnified. Used to study organelles Parameters In Microscopy - correct answer Magnification is the ratio of an object's image size to its real size. Resolution is a measure of the clarity of the image. Contrast accentuates differences in parts of the sample. O...

What is the TD 5/5 for the kidney? 23 Gy What would a QA level 1 action item require? Inspection, but treatment can continue What is the backscatter factor at the level of Dmax? Tissue Air Ratio (TAR) What technique can be used to accomplish forced shallow breathing? Gating What are the parts of the oral cavity? Floor of the mouth, retromolar trigone, gingiva, anterior 2/3 of tongue, hard palate What is the tolerance for gantry & collimator angle indicators? 1.0˚ What does T1b...

RADT 1520 Exam Questions And Correct Solutions 2024 Update If a macromolecule has (a) _____, it will break down into smaller molecules - Answer -main-chain scission In vitro irradiation of macromolecules causes ____ damage to macromolecules. - Answer -repairable and reversible DNA is contained in the ____of the cell nucleus. - Answer -chromosomes Molecular lesions of DNA are called ____. - Answer -point mutations The disassociation of water molecules following irradiation is terme...

Light Microscopy - Answer The use of any kind of microscope that uses visible light to observe specimens Electron Microscopy - Answer uses a beam of electrons to create an image of the specimen Cell Fractionation - Answer The disruption of a cell and separation of its organelles by centrifugation. Cell Size and Surface Area - Answer A cells efficiency depends on its size. If the larger the cell the less efficient the cell is especially if it has a high surface area to volume rat...

What is the TD 5/5 for the kidney? - Answer-23 Gy What would a QA level 1 action item require? - Answer-Inspection, but treatment can continue What is the backscatter factor at the level of Dmax? - Answer-Tissue Air Ratio (TAR) What technique can be used to accomplish forced shallow breathing? - Answer-Gating What are the parts of the oral cavity? - Answer-Floor of the mouth, retromolar trigone, gingiva, anterior 2/3 of tongue, hard palate What is the tolerance for gantry & collimator angl...

What is the TD 5/5 for the kidney? - Answer-23 Gy What would a QA level 1 action item require? - Answer-Inspection, but treatment can continue What is the backscatter factor at the level of Dmax? - Answer-Tissue Air Ratio (TAR) What technique can be used to accomplish forced shallow breathing? - Answer-Gating What are the parts of the oral cavity? - Answer-Floor of the mouth, retromolar trigone, gingiva, anterior 2/3 of tongue, hard palate What is the tolerance for gantry & collimator angl...

1) When biologists wish to study the internal ultrastructure of cells, they can achieve the finest resolution by using A) a phase-contrast light microscope. B) a scanning electron microscope. C) a transmission electronic microscope. D) a confocal fluorescence microscope. E) a super-resolution fluorescence microscope. - correct answer C 2) The advantage of light microscopy over electron microscopy is that A) light microscopy provides for higher magnification than electron microscopy. B...

Describe how you would use a biochemical test to show that a solution contained a non-reducing sugar, such as sucrose. [3] - ANSWER,first reducing sugars test; boil with dilute HCl acid then Neutralise with NaHCǑ, add benedict and heat to 95 degrees C brick red ppt forms if reducing sugar is present Describe a chemical test you could carry out to show that a piece of coconut contains lipids. [3] - ANSWER(Crush in) ethanol / alcohol; Add (to) water (Order of adding is critical for this point)...

The Sensorimotor System Exam Questions and Answers What are "Labeled Lines"? ANSWER Distinct Pathways for each sensory dimension What is "Sensory Transduction"? ANSWER The conversion of electrical energy from a stimulus into a change in membrane potential (generator potential) in a receptor cell The process in which a receptor cell converts the energy in a stimulus into a change in the electrical potential across its membrane Generator Potential ANSWER Graded potential generated ...