Cell fractionation Study guides, Class notes & Summaries
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CSU LIFE 102 FINAL EXAM QUESTIONS & ANSWERS SOLVED 100% CORRECT!
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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...
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ARRT BOARD EXAM Q&A
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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...
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BIO242 Exam 2 Spring 2024 Comprehensive Questions and Answers 100% Accuracy | Updated 2024
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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 ...
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ARRT BOARD EXAM QUESTIONS AND ANSWERS
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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 ...
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BMTCN TEST C QUESTIONS AND ANSWERS 2024 GRADED A+
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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 ...
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Biology 1406 Exam 2 Review (chapters 6,7,8) with 100% correct answers
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Biology 1406 Exam 2 Review (chapters 6,7,8) with 100% correct answersName the scientists who first studied cells and mention their contributions. - correct answer Robert Hooke: first person to view cells, first person to build a microscope. Antonie van Leeuwenhoek: first person to view living cells (bacteria, pond water) .Matthias Schleiden and Theodore Schwann (1830): proposed the cell theory (all living things are composed of cells) still true except for viruses. 
 
Who was the first scientist...
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LSU Biol 1201 LiCata Exam 2 Questions and Answers with complete solution
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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...
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AQA A-Level Biology Questions with Answers | Graded A
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AQA A-Level Biology Questions with Answers | Graded A 
Glucose is absorbed from the lumen of the small intestine into epithelial cells. Explain 
how the transport of sodium ions is involved in the absorption of glucose by epithelial 
cells. (5 marks) [Unit 1, June 16] - Correct Answer ️️ -1. Na+ ions leave epithelial cell 
and enter blood; 
2. (Transport out is by) active transport / pump / via carrier protein using ATP; 
3. So, Na+ conc. in cell is lower than in lumen (of gut); 
4. Sodium/N...
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Campbell Biology Ch. 6 - 7 Test Bank questions and correct answers
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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...
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ARRT SAFETY REVIEW QUESTIONS WITH 100% CORRECT ANSWERS!!
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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...