Comprehensive Portage Learning BIOD 171 Final Exam resource with authentic questions from the actual test bank, covering over 93% of the exam content. Save time and money with this reliable study guide, tailored for thorough preparation. Ideal for students aiming to excel, complete the course effic...
Question 1
4 pts
Match each of the following organelles with the correct description
Set1
Nucleus - contains genomic content
endoplasmic reticulum - series of membrane enclosed
lysosomes - contains hydrolytic enzymes
chloroplasts - site of photosynthesis
Set2
ribosomes - function in protein synthesis
nucleus - contains genomic content
cytoplasm – constitutes the open volume within a cell
lysosomes - contain hydrolytic enzymes
Question 2
4 pts
Briefly explain how a Scanning Electron Microscope (SEM) forms an image of a microscopic
specimen
SEM forms an image by reflecting electrons off the surface of a specimen, which is usually
coated in gold or palladium to enhance electron reflections, producing a 3D image.
Briefly explain how a Transmission Electron Microscope (TEM) forms an image of subcellular
organelles, substrates, and viral particles
TEM forms an image by passing electrons through a thin section of a specimen heavily
coated with a preservative, producing a 2D image of subcellular organelles, substrates,
and viral particles.
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