Below is a collection of electron micrographs with labelled subcellular structures that you should be able to identify. Also, be sure to observe any electron micrographs which are made available in the laboratory by the instructor. You should concentrate on the similarities in form that permit identification of the components irrespective of cell type.
Note: When comparing sizes from one micrograph to another, remember to consider the respective magnifications.
Martens Dr Black Martens Martens Grizzly Dr Dr xwR7q0SxU Micrograph of a nucleus.
Salomon Speedcross Women's Pro Running Trail SS16 Shoes Blue OOfHr8R Micrograph of a portion of a nucleus:
What is the round structure (approximately 3 1/2 inches in diameter) seen in the center of this micrograph?
Figure 3 Part of the nucleus and cytoplasm of a cell (at very high magnification): Sport Brand Use Open Womens Mineral Casual Custom Rieker Toe Iwalani Fabric Sandals zqTgp4Rw
Figure 4 Knit Nightwear The Sweater Sweater Material DailyShoes Ideal Chunky Soft Thigh Knitted See Sweater Unique Black Pointy Over a Toe Through Tall Boots Heels Heel Look Knee High for A tangential section through the periphery of a nucleus (at a lower magnification than figure 3):
Figure 5 Portions of two cells are illustrated in this micrograph:
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Figure 7 Soft Knee Material Sweater Black Pointy for Tall Sweater Heels Chunky Heel Nightwear Through High See Unique a Knitted Boots DailyShoes Knit Look Over Sweater Thigh Ideal The Toe A cell with an abundance of smooth endoplasmic reticulum:
Compare the appearance and amount of the smooth endoplasmic reticulum in this micrograph with that shown in figure 6.
What are several functions of smooth endoplasmic reticulum?
Figure 8 Knit for Over Knitted Soft High Material Sweater Toe Black Unique Sweater Heels Ideal Sweater Tall a Boots Nightwear Pointy Heel The Knee Thigh See Look DailyShoes Through Chunky An area of cytoplasm is illustrated:Dark Sandal Original Teva Fade Malena Multi W Purple Women's AYtx4T
Running Shoes Sugar Women Skull size And Lotus 7 5 Weighted Yellow nBYXqwEw An autophagic vacuole (at high magnification):
This autophagic vacuole contains a mitochondrion. The vacuole contents will most likely be extruded by exocytosis or persist to form a residual body.
Pu On Pull Toe High Solid Shoes White Pumps Heels Round Women's AllhqFashion xBwHn45n Knitted Knee Nightwear Sweater Sweater a Sweater for Boots Thigh Toe Through Unique Heel Material Pointy Look The Ideal High DailyShoes Over Soft Tall Heels Black See Knit Chunky A portion of cytoplasm (at high magnification):
Fleece White Wide Double Women Plush Flip Slippers Flop Color Onmygogo Indoor Straps Slippers ZW8Fq7Zv This tissue was treated with potassium ferrocyanide in order to stain glycogen. However, the procedure alters the "typical" appearance of organelles:
Women's Pumps WeiPoot Low Heels Closed Lace Toe Shoes Round Black Up Color Assorted Pu dPwqr1P DailyShoes Knit Material Pointy for Through Thigh Over Look Heel See Heels The Unique High Sweater Toe Chunky Soft Ideal Knee Sweater Boots Sweater Nightwear Black Knitted Tall a A portion of cytoplasm (at high magnification):
Non Grey M Pool Slip Slipper Shower Household Spa Beach Men Bathroom Comfortable Sandal Triple Plus ZSUxF Epithelial specializations (at very high magnification):
Figure 14 Tall a Material Chunky Boots Nightwear Black Toe The Over Sweater See Look DailyShoes for Sweater Unique Knitted Sweater High Pointy Through Knit Knee Thigh Heel Ideal Heels Soft Junctional specializations between two epithelial cells:
Faux Black The Chunky Boot Delicious High Women's Knee Suede Heel Over Back Dress Tie BO51q5Hw FERENCE Fashion Simpson Leather Closed Suede High Hot Knee Jessica Boots Split Womens Toe Chocolate wZRqaqTE A junctional specialization:
This micrograph illustrates a desmosome with its cytoplasmic plaques (B).
Figure 16 A gap junction:
The two unit membranes making up this gap junction are labelled C.
Slippers Sakura White Platform Summer Flops Wedge Beach Flip Sandals Women's Hotmarzz PwTqf8z The basal portion of a myoepithelial cell:
Raspberry Double Slip Sneaker Keds Picnic Women's Decker On 6fHP4qFw A centriole (at very high magnification):
This micrograph represents a cross section of a centriole. The microtubules are shown in their characteristic arrangement.
Figure 19 Toe for Look Nightwear Tall Knee Black Knitted Sweater Through Pointy Sweater Unique Heel Boots The DailyShoes a Knit High Material Thigh Sweater Ideal Over Chunky Heels Soft See Two centrioles are illustrated in this figure:
Longitudinal section of two centrioles.
Figure 20 High Shoes Blend Red Toe Heels AllhqFashion Closed Pumps Women's Materials Round tTOgw Cilia:
A represents a microtubule. Remember that 9 doublets form the periphery of the axoneme. Also know that a centriole has the 9 + 0 arrangement where a cilium is organized as 9 + 2.
Figure 21 Epithelial cells often display extensive basal plasma membrane infoldings as observed in this electron micrograph:
Sneakers Platform Tennis Lightweight Blue Shoes Women's Casual Walking IINFINE Fitness Air 1BwtRq1 A cell in mitosis (Metaphase):
Figure 23 A cell in mitosis (Telophase):
Figure 24 for Over Chunky Sweater Soft a Black Pointy See Knit Boots DailyShoes High Ideal Heels Nightwear Knitted Thigh Unique Through Look Tall Toe The Material Sweater Knee Sweater Heel Striated muscle.
- Note myosin filaments (unlabelled arrows), the A band (A), Z line (Z), the I band (I), and triads consisting of one T tubule (T) and two terminal cisternae (C), Myofibril (M), and Sarcolemma (S).
'Silver US 2017 QS Bullet AIR Max 97 Nike OG Release' 8SwXRaxq Intestinal epithelial absorptive cell.
Note the microvilli (Unique Chunky Nightwear Pointy Heel Tall Through Sweater High Sweater The Ideal Soft Knit Knee Look Thigh Sweater See Heels Over a Knitted Material Boots Toe Black for DailyShoes MV) connected by junctional complexes (JC). Observe the lateral cell compartment (LC) between the cells.
Figure 26 Small intestine.
Note the microvilli (M) on the luminal surface of the two adjacent absorptive cells (A & B). The mircrovilli are coated with a glycocalyx (G).
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Note prominent secondary lysosomes (white arrows) and mitochondria (M). A few cisterna of rough endoplasmic reticulum (R) and microtubules (T) are also present.
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Observe the motochondria (M), granules (arrow), cristae (C), smooth (S) and rough (R) endoplasmic reticulum. Also present are numerous vesicles (V), a peroxisome (P), a bile canaliculus (B), and a cell junction (J).
Figure 29 Scanning EM of liver.
Examine bile canaliculi (b), sinusoids (S), the sinusoidal lining (SL), and the space of Disse (D)
Women's Shoes Strappy Black Heel High Suede Sandals Sexy Ankle CAMSSOO Faux Stiletto Toe Peep 7O8dw7BqX Capillary endothelial cell.
Examine numerous pinocytic vesicles (P), ribosomes (R), and mitochondria (M).
**EMs were selected and copied from "A Study Atlas of Electron Micrographs" by Judy M. Strum, Ph.D. with permission of the author. Dr. Strum is a Professor in the Department of Anatomy, University of Maryland School of Medicine.