Cell fractionation Study guides, Class 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...

BIO 213 EXAM 3 GMU LATEST UPDATE 100% PASS active transport energy required Active transport moves substances across a concentration gradient, requires energy, involves uniporters, symporters, and antiporters Antoni Van Leeuwenhek discovered microbial world using a simple lens apical membrane faces the lumen of outside of the body Autocrine signals diffuse to and affect the cells that make them ex: is a tumor cell autophagy lysosomes digest cell material basolateral memb...

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 ...

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...

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 ...

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...

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 ...

Biology 1406 Exam 2 Review (chapters 6,7,8)Name 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 to view cells/build a mic...

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...

BIO-181 Quiz 2 GCULight Microscopy - correct answer The use of any kind of microscope that uses visible light to observe specimens Electron Microscopy - correct answer uses a beam of electrons to create an image of the specimen Cell Fractionation - correct answer The disruption of a cell and separation of its organelles by centrifugation. Cell Size and Surface Area - correct answer A cells efficiency depends on its size. If the larger the cell the less efficient the cell is especially i...