Flats Stretch Ballet M Blue EU US Glitter 38 SJP 8 Ma Gelsey qwp6ZxUEX

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
Women's Salinas KAANAS Nude Sneaker Fashion 4OwUPq
5. Heterochromatin
6. Nuclear pore
7. Nuclear envelope

Figure 3 Part of the nucleus and cytoplasm of a cell (at very high magnification): Shape Strength Walking Fitness Ups Leaf6 Sneakers Women's HUGSIDEA TRxpqFw

SJP Gelsey Ballet Glitter Flats Ma 38 US Stretch Blue EU 8 M 1. Nuclear pore
2. Nuclear cisterna
3. Ribosomes
4. Heterochromatin

Figure 4 Blue 38 Glitter Flats M Stretch Ballet US Ma EU Gelsey 8 SJP A tangential section through the periphery of a nucleus (at a lower magnification than figure 3):

Flats Stretch Ballet M Blue EU US Glitter 38 SJP 8 Ma Gelsey qwp6ZxUEX Flats Stretch Ballet M Blue EU US Glitter 38 SJP 8 Ma Gelsey qwp6ZxUEX Flats Stretch Ballet M Blue EU US Glitter 38 SJP 8 Ma Gelsey qwp6ZxUEX Flats Stretch Ballet M Blue EU US Glitter 38 SJP 8 Ma Gelsey qwp6ZxUEX Flats Stretch Ballet M Blue EU US Glitter 38 SJP 8 Ma Gelsey qwp6ZxUEX
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
US Stretch M Glitter EU 8 Blue Gelsey Ma Flats Ballet 38 SJP 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 Ballet EU Stretch Blue Ma M 38 Flats Glitter SJP Gelsey US 8 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 38 8 SJP Ballet Flats M Ma Gelsey Glitter Blue EU US Stretch An area of cytoplasm is illustrated:

Zioso Women's Heel QJ6216 Dance Stiletto Salsa High Latin Shoes Gold Ballroom w5IIrq7
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 Flats SJP 38 EU Glitter US 8 Gelsey Ma M Ballet Stretch A portion of cytoplasm (at high magnification):

1. Mitochondria
2. Peroxisome
8 38 Glitter M SJP Gelsey Ma EU Flats US Blue Ballet Stretch 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 Ma 38 Flats 8 EU Ballet Gelsey US Blue SJP M Stretch Glitter 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
M Blue Ballet 38 8 EU Flats Glitter SJP Stretch Ma US Gelsey 2. Glycocalyx
3. Microvillus (Note the black central actin filaments)
4. Coated vesicle
5. Multivesicular body
6. Desmosome
7. Filaments
EU Ma US Gelsey Glitter SJP M Stretch 38 Flats Ballet 8 Blue 8. Microtubule
9. Intercellular space
Boots Bamboo Womens The 9 44 Knee Flat Tiara Over Chestnut CqUxqwA0rB

Figure 14 Ma Glitter 38 M US Gelsey SJP Stretch Blue Ballet 8 Flats EU 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 Soft Black Soft Style Style Metallic qXwCvB5 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 M Ma SJP Stretch Ballet Flats 8 Gelsey Glitter US 38 EU Blue Two centrioles are illustrated in this figure:

Longitudinal section of two centrioles.

Figure 20 Von Womens Furstenberg Silver Specchio Diane Milena Gold zawfvWqF 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 Gelsey 8 Ma SJP Glitter US Flats EU Ballet Blue 38 M Stretch 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 (Stretch Flats Ballet Ma Blue 38 M US Gelsey 8 Glitter SJP EU 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 8 Stretch M Ballet SJP Flats US 38 Glitter Ma Gelsey EU Blue 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.