Shatin Tsung Tsin Secondary School

Biology Panel

Biological Photos

Photomicrographs

 

A.      Plant histology

1.        Cell division

2.        Plant tissues

3.        Root

4.        Stem

5.        Leaf

6.        Flower

7.        Aquatic plants

8.        Xerophytic plants

 

B.       Animal histology

1.        Digestive system

2.        Circulatory system

3.        Respiratory system

4.        Reproductive system

5.        Integumentary system

6.        Skeletal system

7.        Nervous system

 

*********************************************************************

 

*Cell division

      Mitosis, root tips of Vicia faba, L.S. (shoot tip 132, apical meristem 133, interphase 138, prophase 139, metaphase 140, anaphase 137, 142, telophase 143)

 

Return to top

 

*PLANT TISSUES

      Parenchyma

      Typical parenchyma, T.S. (cortex & pith of dicot stem 77, cortex of root 111)

      Modified parenchyma, T.S. (mesophyll cells & epidermal cells 28)

      Modified parenchyma, T.S. (aerenchyma 129)

      Collenchyma

      Hypodermis of stem, T.S. (77, 79)

      Mid-rib of leaf, T.S. (upper & lower parts 55, 52)

      Sclerenchyma

      Fibres, T.S. (dicot stem 77, 74 & monocot stem 120, 121)

      Sclereids, T.S. (astrosclereids in hydrophytic leaf 48)

      Xylem

      Primary xylem, T.S. (dicot stem 77, 78, monocot stem 118, 121, dicot root 112, 114)

      Secondary xylem, T.S. (91, 92)

      Xylem vessel, L.S. (98)

      Phloem

      Phloem tubes, L.S. (104, 105, 106, 107)

      Cork, T.S. (80, 82, 93), lenticels, T.S. (85)

 

Return to top

 

*Root

      Dicot root, young, Helianthus, T.S. (110, stele 111)

      Dicot root, young, Rannunculus, T.S. (112, stele 113, 114)

      Dicot root, young, Vicia faba, T.S. (stele 116, root hair117)

 

Return to top

 

*STEM

      Dicot stem, young, Helianthus, T.S. (75, 77, vascular bundles 76, 78, hypodermis 79)

      Dicot stem, young, Lamium, T.S. (89, collenchyma 90)

      Dicot stem, old, Ribes, T.S. (80, 81, 82)

      Dicot stem, old, Sambucus, T.S. (84, 86, 87, 88, lenticel 85)

      Dicot stem, 2-year, Tilia, T.S. (91, 93, 94, 95, 96, 97, pith 92)

      Dicot stem, L.S. showing various cell types (98)

 

Return to top

 

*LEAF

      Dicot leaf epidermis, Vicia faba, W.M. (60, 61, 62, guard cells 63)

      Monocot leaf epidermis, Allium, W.M. (64, 65)

      Stomata (30), sunken stomata, T.S. (38)

      Monocot leaf, T.S. Iris, T.S. (66)

      Monocot leaf, T.S. (67, 68)

      Dicot leaf, T.S. (69, 70)

      Dicot leaf, Pelargonium, T.S. (25)

      Dicot leaf, Ligustrum, T.S. (31, 32, 33, 26, 27, 28, 29, 30)

      Mesophytic dicot leaf, T.S. (55, 56, 57, 58, 59)

      Sun leaf, T.S. (34), Shade leaf (3H12e not taken yet)

 

Return to top

 

*AQUATIC PLANTS

      Aquatic leaf, Nymphaea, T.S. (124, upper epidermis 125, guard cells at upper epidermis 128, lower epidermis127)

      Aquatic leaf, T.S. (48, 49, 50, 51, 52, guard cells at upper epidermis 54)

      Aquatic stem, T.S. Elodea (129, 130, aerenchyma/lacuna 131)

 

Return to top

 

*Xerophytic plants

      Xerophytic leaf, Erica, T.S. (36, 37)

      Xerophytic leaf, Ficus, T.S. (38, 39, sunken stomata 40)

      Xerophytic leaf, Nerium, T.S. (41, 42, 43, 44, 45, 46, 47)

      Xerophytic leaf, Pinus, T.S. (not yet taken)

 

Return to top

 

*Digestive system

      Ileum, T.S. (goblet cells 3,4)

      Ileum, villi, T.S. (5)

      Duodenum, T.S.  (Brunner’s gland, crypts of Lieberkuhn 6,7)

 

Return to top

*Circulatory system

      Artery, T.S.  (147, 154, 156)

      Vein, T.S. (152)

      Artery & vein, T.S. (150)

 

Return to top

 

*Reproductive system

      Testis, T.S. (seminiferous tubules 12, 15, sperms 158 )

      Ovary, T.S. (17, stroma 18, oocyte 19, 22, developing follicles 21, 20)

 

Return to top

 

*Integumentary system

      Scalp, T.S. (8, hair follicles/arrector muscle/sebaceous gland 11)

 

Return to top