Electron microscopy Study guides, Revision notes & Summaries

Quiz 3 Part 1 of 8 - Chapter 3 18.0 Points Question 1 of 31 3.0 Points In an electron microscope, what type of cells are used?  A. dead, processed cells  B. live and fresh cells  C. live, processed cells  D. dead, but fresh cells Feedback:The processing and prep for electron microscopy kills the cells, and it is usually done in a vacuum. Review microscopy in Chapter 3. Question 2 of 31 3.0 Points Which is typically the most prominent organ

Light microscopy CORRECT ANSWER - Uses visible light to examine microscopic-sized objects that cannot be seen by the naked eye. - Allows finer detail than the naked eye. Electron microscopy CORRECT ANSWER - Visualize objects much smaller than those resolved optically. - Use accelerated electrons instead of light photons. - Samples are fixed with chemicals to cross-link molecules to preserve their structure. Fluorescent stains CORRECT ANSWER - Used with light microscopy. - Fluorescence ...

Quiz 3 Part 1 of 8 - Chapter 3 18.0 Points Question 1 of 31 3.0 Points In an electron microscope, what type of cells are used?  A. dead, processed cells  B. live and fresh cells  C. live, processed cells  D. dead, but fresh cells Feedback:The processing and prep for electron microscopy kills the cells, and it is usually done in a vacuum. Review microscopy in Chapter 3. Question 2 of 31 3.0 Points Which is typically the most prominent organelle in a eukaryotic cell? ...

Bio principles unit 2 brooks questions and answers graded A+ all organisms are made of cells and come from cells Cell theory When the cell size (INCREASES or DECREASES), the membrane gets smaller compared to cell volume. increases the study of cells Cytology "how can cork float" Took sections, looked under microscope and found that they had tiny chambers (aka cells) Robert Hooke Part of electromagnetic spectrum via sun, delivering energy that can be recorded as waveleng...

IB Biology Review with Complete Solutions cell theory -All living things are composed of cells -cells come from preexisting cells -Cells are smallest unit of life Challenges to cell theory: muscle fibres -They are fused cells, so they're long and have multiple nucleus -challenges cells are autonomous units Challenges to cell theory: Giant algae -certain species may grow large -challenges idea cells are microscopic and larger organisms are composed of many Challenges ...

Quiz 3 Part 1 of 8 - Chapter 3 18.0 Points Question 1 of 31 3.0 Points In an electron microscope, what type of cells are used?  A. dead, processed cells  B. live and fresh cells  C. live, processed cells  D. dead, but fresh cells Feedback:The processing and prep for electron microscopy kills the cells, and it is usually done in a vacuum. Review microscopy in Chapter 3. Question 2 of 31 3.0 Points Which is typically the most prominent organelle in a eukaryotic cell?

Light Microscopy CORRECT ANSWER Used alongside differential staining i. Gram Staining: identifies gram (+) or gram (-) ii. Fluorescent stains: used to study molecule interaction/aggregation in certain tissue, cell, etc. 1. GFP used to study protein localization Cryo-electron microscopy CORRECT ANSWER Used to visualize objects (e.g. individual atoms) and finer structural cellular details much smaller than those resolved optically Cryo-electron tomography CORRECT ANSWER Creates 3D visua...

BIO 353 test 1 multiple choice -ASU questions & answers 2024 A student in a cellular biology laboratory is faced with the task of detecting protein X in muscle cells taken from a rat. The tissue is required to be live while under analysis. Which type of microscopy should be employed? a) Phase contrast light microscopy b) Transmission electron microscopy c) Scanning electron microscopy d) Fluorescence microscopy e) None of the above - ANSWER-d) Fluorescence microscopy Which...

What are the different types of microscopy and staining and when are they used? CORRECT ANSWER Types of microscopy include: light microscopy- used primarily to get an idea of the form of the bacteria, used in combination with staining to get an idea of Gram positive and Gram negative protein. Green fluorescent is used to observe cell occurrences like binary fission and movement of proteins. Electron microscopy is very detailed at getting an idea of what is occurring inside and outside of the ce...

CIH Review Questions and Answers Latest updated 2023 Log A^B = B Log A Log A = X → 10× = A Log (AB) = Log A + Log B Log (A/B) = Log A - Log B Define PCM Phase Contrast Microscopy used for asbestos samples in air Define PLM Polarized Light Microscopy Used for bulk asbestos analysis Define SEM Scanning Electron Microscopy Can be used for asbestos analysis Used infrequently Define TEM Transmission Electron Microscopy Used for finding...