Cell fractionation Study guides, Revision notes & Summaries

Phosphorus has an atomic number of 15. This tells us that... - Answer-there must be 15 protons True or False: covalent bonds are stronger than ionic and hydrogen bonds because atoms that are joined with covalent bonds share electrons - Answer-True An e- in a hydrogen atom exists in the first valence shell. The valence e- of Aluminum exist in the 3rd shell. Which valence shell e- have higher potential energy and why? - Answer-the valence e- of aluminum, bc higher e- shells have higher energy...

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 & c...

Iteroparous Species that reproduce multiple times during their lives (ex: humans, dogs, Semelparous Species that reproduce only once in their life, but may produce MANY offspring during that one, Iteroparity A survivorship pattern related to reproductive patterns; often typical of organisms whose survival chances increase once they reach maturity, Semelparity A survivorship pattern related to reproductive patterns; often typical of organisms with type 3 survivorship, Phylogeny a synonym for ...

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

BMTCN TEST C QUESTIONS AND ANSWERS 2024 GRADED A+ Myeloid progenitors give rise to which of the following types of cells during hematopoiesis? A. NK cells B. Plasma Cells C. Erythrocytes D. T lymphocytes Ans- D. T lymphocytes Myeloid progenitors give rise to erythrocytes Which of the following would be an optimal donor choice for a 26-year-old Caucasian male with acute myeloid leukemia? A. A 35-year-old mother of four B. A 30-year-old male with a body mass index of 25 C. The ...

Cell theory - -All organisms are made of cells -The cell is the simplest collection of matter that can be alive -Cells are near the middle of the biological size range scanning electron microscope - Focus electrons onto the surface of a specimen, providing images that look 3-D Transmission Electron Microscopes - focus a beam of electrons through a specimen cell fractionation - Takes cells apart and separates the major organelles from one another centrifuges fractionate cells into their co...

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...

Which cell types have the lowest radiosensitivity: nerve cells muscle cells spermatids lymphocytes - nerve cells (except in fetal life, they are highly radiosensitive) Which cells are the most radiosensitive in the body - lymphocytes Which interaction between x-ray photons and matter involves a high energy photon and the ejection of an outer shell electron? photoelectric effect coherent scatter Compton scatter pair produciton - Compton scatter What is likely to occur if 250 mGy is ac...

BIOD 101 PRACTICE EXAM QUESTIONS WITH ANSWERS NEW GENERATIONS Organelles of the endomembrane system include all of the following EXCEPT: a. endoplasmic reticulum b. lysosomes c. mitochondria d. endosomes e. Golgi complex c. mitochondria Which one of the following is a FALSE statement about secretory pathways? a. materials produced in the endoplasmic reticulum may leave the cell by phagocytosis b. during constitutive secretion, materials are continually secreted from the cell c....

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