Let’s Look at Slides #2

Let’s Look at Slides #2

20170720_144550 - Copy

*Make sure you read the previous post*

The second part, going to do 22, let’s begin.

ABBREVIATION MEANING
wm Whole mount (entire specimen or organism)
st Stained
ls Longitudinal section
cs Cross-section
sec Section
sm Smear
sq Squashed preparation

19. Dragonfly Wings (w.m.):

20170722_100600

20170722_100630

40x

 

20. Earthworm (c.s.):

 

20170722_100728

40x

 

21. Feather (w.m.):

20170722_100909

Wow, that is the smallest feather I ever saw.

 

20170722_100856

40x

20170722_100938

100x

 

22. Fern Porthallia (w.m.):

A prothallium or prothallus is usually the gametophyte stage in the life of a fern or other pteridophyte. Occasionally the term is also used to describe the young gametophyte of a liverwort or peat moss as well.

The prothallium develops from a germinating spore. It is a short-lived and inconspicuous heart-shaped structure typically 2–5 millimeters wide, with a number of rhizoids (root-like hairs) growing underneath, and the sex organs: archegonium (female) and antheridium (male). Appearance varies quite a lot between species. Some are green and conduct photosynthesis while others are colorless and nourish themselves underground as saprotrophs.

20170722_101035

40x

20170722_101058

100x

 

23. Fern Porthallia and Sporangia (w.m.):

A sporangium (pl., sporangia) is an enclosure in which spores are formed. It can be composed of a single cell or can be multicellular. All plants, fungi, and many other lineages form sporangia at some point in their life cycle. Sporangia can produce spores by mitosis, but in nearly all land plants and many fungi, sporangia are the site of meiosis and produce genetically distinct haploid spores.

20170722_101149

40x (top)

20170722_101203

40x (bottom)

 

24. Fern Leaf-Sorus (w.m.):

A sorus (pl. sori) is a cluster of sporangia (structures producing and containing spores) in ferns and fungi.

In fungi and lichens, the sorus is surrounded by an external layer. In some red algae, it may take the form of a depression into the thallus.

In ferns, these form a yellowish or brownish mass on the edge or underside of a fertile frond. In some species, they are protected during development by a scale or film of tissue called the indusium, which forms an umbrella-like cover.

Sori occur on the sporophyte generation, the sporangia within producing haploid meiospores. As the sporongia mature, the indusium shrivels so that spore release is unimpeded. The sporangia then burst and release the spores.

The shape, arrangement, and location of the sori are often valuable clues in the identification of fern taxa. Sori may be circular or linear. They may be arranged in rows, either parallel or oblique to the costa, or randomly. Their location may be marginal or set away from the margin on the frond lamina. The presence or absence of indusium is also used to identify fern taxa.

20170722_101240

40x

 

25. Fish Blood Smear:

The dots are called Red blood cells (RBCs), also called erythrocytes, are the most common type of blood cell and the vertebrate’s principal means of delivering oxygen (O2) to the body tissues—via blood flow through the circulatory system. RBCs take up oxygen in the lungs, or gills of fish, and release it into tissues while squeezing through the body’s capillaries.

20170722_101402

400x

Wow! you could really see the red blood cells!

 

26. Fish Blood Smear #2:

Uh… There’s 2 in my case/box

I tried to look for the differences, but I don’t see any.

20170722_101430

27. Frog Epidermic Cell (sec.):

The epidermis is the outer of the two layers that make up the skin (or cutis; Greek δέρμα derma), the inner layer being the dermis. It provides a barrier to infection from environmental pathogensand regulates the amount of water released from the body into the atmosphere through transepidermal water loss (TEWL).The outermost part of the epidermis is composed of stratified layers of flattened cells, that overlies a basal layer (stratum basale) composed of columnar cells arranged perpendicularly.20170722_101542

20170722_101614

40x

20170722_101705

100x

 

28. Frog Liver (sec.):

 

20170722_101748

100x

 

29. Frog Lung (sec.):

 

20170722_101833

40x

20170722_101903

100x

 

30. Frog Showing Spermary (sec.):

A spermary is tThe male germ-gland or essential sexual organ, of whatever character; the sperm-gland, or spermatic organ, or seminal gonad, in which spermatozoa are generated, in its specialized condition in the higher animals known as the testis or testicle. The term is used in distinction from ovary, both spermaries and ovaries being gonads. Also spermarium. But still, I don’t what it is.

20170722_101929

20170722_101954

40x

20170722_102013

100x

 

31. Honeybee mouth parts (w.m.):

20170722_102031

20170722_102124

40x

 

32. Housefly Mouth parts (w.m.):20170722_102148

20170722_102239

40x

33. Human blood Smear:

20170722_102350

400x

Yay! the red blood cells!

34. Human Hair (w.m.):

 

20170722_102913

40x

20170722_103002

100x

 

35. Hydra (c.s.):

Hydra is a genus of small, fresh-water animals of the phylum Cnidaria and class Hydrozoa. They are native to the temperate and tropical regions. Biologists are especially interested in Hydra because of their regenerative ability and they appear not to age or die of old age.

 

20170722_103150

40x

 

36. Ipomoea Leaf (c.s.):

Ipomoea is the largest genus in the flowering plant family Convolvulaceae, with over 500 species. It is a large and diverse group with common names including morning glory, water convolvulus or kangkung, sweet potatobindweedmoonflower, etc.

20170722_103215

20170722_103242


40x

20170722_103303

100x

37. Ipomoea Root (sec.):

20170722_103318

20170722_103355

40x

20170722_103414

100x

Did you learn anything? Tell me in the comment section.

Sources:

https://en.wikipedia.org/wiki/Prothallium

https://en.wikipedia.org/wiki/Sporangium

https://en.wikipedia.org/wiki/Sorus

https://en.wikipedia.org/wiki/Red_blood_cell

https://en.wikipedia.org/wiki/Epidermis

http://www.finedictionary.com/Spermary.html

https://en.wikipedia.org/wiki/Hydra_(genus)

https://en.wikipedia.org/wiki/Ipomoea

About Dan the Young Scientist

Science is my Life!
This entry was posted in Experiments and Studies and tagged , , , , . Bookmark the permalink.

3 Responses to Let’s Look at Slides #2

  1. Hope you enjoyed this post!

    Like

  2. When I was a kid we use to look at everything under a microscope. We even pricked our fingers to see what our blood looked like! These slides are awesome!

    Liked by 1 person

What's your Opinion?

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s