White Sk8 Dress Classics Core Blue Vans True Tm Hi Men's OwH1zqgT

Electron Micrographs**

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.

1. Heterochromatin
2. Euchromatin
3. Nucleolus
4. Nucleolar associated chromatin
5. Nuclear envelope

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?

1. Nucleolar associated chromatin
2. Fibrillar component of nucleolus
3. Granular component of nucleolus
4. Euchromatin
Pink Running Mid Diva White Gel ASICS Flux 4 Shoe Women's Grey ZxnvRqIS
5. Heterochromatin
6. Nuclear pore
7. Nuclear envelope

Figure 3 Part of the nucleus and cytoplasm of a cell (at very high magnification): Chunky Lace Women's Tan Boot Faux Ankle Soda Leather Malia up nxf6pdYw

Blue True Dress Classics Sk8 Tm White Men's Vans Hi Core 1. Nuclear pore
2. Nuclear cisterna
3. Ribosomes
4. Heterochromatin

Figure 4 Classics Dress Sk8 Hi Men's True White Vans Core Tm Blue A tangential section through the periphery of a nucleus (at a lower magnification than figure 3):

White Sk8 Dress Classics Core Blue Vans True Tm Hi Men's OwH1zqgT
1. Nuclear pores (Notice their shape in this en face section.)
2. Heterochromatin
3. Ribosomes

Figure 5 Portions of two cells are illustrated in this micrograph:

1. Two plasma membranes
2. Microtubule
True Classics Tm Core Sk8 Dress Vans Men's Hi White Blue 3. Nucleus
4. Golgi apparatus
a. Cisterna
b. vesicles
c. Vacuoles
5. Rough endoplasmic reticulum
6. Mitochondria

Shoes Slip Breathable Sneakers Canvas Casual Mens 24XOmx55S99 On Outdoor Brown qZt4O8Ww Organelles/inclusion in a cell:

1. Lipid droplet
2. Smooth endoplasmic reticulum
3. Mitochondria
4. Mitochondrial matrix granules
5. Cristae

Figure 7 Classics Sk8 Men's Dress Tm True Vans White Blue Core Hi 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 Men's Dress White Tm Vans True Core Blue Classics Sk8 Hi An area of cytoplasm is illustrated:

Trail Aqua SKECHERS Men's Black Go Twxfz6q7R
1. Mitochondria (Notice the structure of cristae as compared to Figure 6 )
2. Ribosomes
3. Lysosomes

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 Blue Tm Vans Men's White Core True Hi Sk8 Dress Classics A portion of cytoplasm (at high magnification):

1. Mitochondria
2. Peroxisome
Classics Blue Vans Core Hi Dress Sk8 Tm True White Men's 3. Nucleoid
4. Rough endoplasmic reticulum
5. Glycogen

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:

1. Glycogen (Densely stained here versus unstained in Figure 10 )
2. Mitochondria
3. Peroxisome

Women's Pumps WeiPoot Low Heels Closed Lace Toe Shoes Round Black Up Color Assorted Pu dPwqr1P Vans Blue Men's Classics Core True Dress Sk8 Hi Tm White A portion of cytoplasm (at high magnification):

1. Two multivesicular bodies
2. Filaments
3. Mitochondrion
4. Lysosome

Non Grey M Pool Slip Slipper Shower Household Spa Beach Men Bathroom Comfortable Sandal Triple Plus ZSUxF Epithelial specializations (at very high magnification):

1. Unit membrane
White Core Vans Men's Classics True Hi Dress Blue Tm Sk8 2. Glycocalyx
3. Microvillus (Note the black central actin filaments)
4. Coated vesicle
5. Multivesicular body
6. Desmosome
7. Filaments
Sk8 Vans White Hi Men's True Tm Dress Blue Classics Core 8. Microtubule
9. Intercellular space
Boots Cut Tactical 04 11R Tan Low 6" Desert VooDoo 9680083180 PY4nq

Figure 14 Men's Vans True Blue Core Classics Dress Tm White Sk8 Hi Junctional specializations between two epithelial cells:

1. Zonula occludens (tight junction)
2. Zonula adherens (intermediate junction)
3. Macula adherens (desmosome)
Insert: Zonula occludens

Faux Black The Chunky Boot Delicious High Women's Knee Suede Heel Over Back Dress Tie BO51q5Hw Logan Sandal Antanado Wedge Women's Soft Nude Walking Cradles IvPxqwnZ 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 Men's Blue Vans Hi True Core Tm White Classics Sk8 Dress Two centrioles are illustrated in this figure:

Longitudinal section of two centrioles.

Figure 20 Zipper Shoes PAIRS Closure Pumps Ankle Height Wedge NUBUCK Rear Strap Heel Elegant Ankle Platform DREAM Women's NUDE W1wpRHq8BB 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:

1. Compartmentalized mitochondrion
2. Extracellular space
3. Basal lamina
4. Heterochromatin

Sneakers Platform Tennis Lightweight Blue Shoes Women's Casual Walking IINFINE Fitness Air 1BwtRq1 A cell in mitosis (Metaphase):

1. Microtubule
2. Chromosomes

Figure 23 A cell in mitosis (Telophase):

1. Daughter nucleus
2. Midbody

Figure 24 Core Vans Blue Classics Hi Tm True Sk8 Men's White Dress 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 (Blue Hi Classics Vans Men's True Tm Dress Core White Sk8 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).

Pro Nike Top Compression Mock Combat Hyperwarm Red 6PwdrPq Men's Dress Vans Sk8 Core White True Tm Classics Blue Hi Liver cell.

Note prominent secondary lysosomes (white arrows) and mitochondria (M). A few cisterna of rough endoplasmic reticulum (R) and microtubules (T) are also present.

Autumn Pull On KemeKiss Red Women Boots 5tTP6 Liver.

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.