SI Biology SI session Lab. Practice for Final Part III Spring 2010 Dr. Hughey’s Bio 3 (Lab.) Designed by Pyeongsug Kim ©2010 sibio@att.net

Designed by Pyeongsug Kim, ©2009 Phylum _____________ Genus _____________ Coniferophyta Pinus A) B) What is botanical name in each picture? What does it produce? A - B - Microsporangiate strobili-produce pollen Megasporangiate(ovulate) strobili – bearing megasporangia Designed by Pyeongsug Kim, ©2009

Designed by Pyeongsug Kim, ©2009 What does this structure (botanical) name? Microsporangiate strobili What does this structure produce? Pollen Label. A: B: C: A Microsporophyll Microsporangia Pollen B C Designed by Pyeongsug Kim, ©2009

Designed by Pyeongsug Kim, ©2009 #3 The botanical name of the structure? Megasporangiate(ovulate) strobili Label. A: B: C: D: E: F: Ovulriferous scale Megasporocyte Nucellus(megasporangia) Integument Micropyle Sterile bract Designed by Pyeongsug Kim, ©2009

Designed by Pyeongsug Kim, ©2009 What is common name and botanical name in the structure? Pollen; immature male(micro); gametophytes(n) How many cells are included in each structure? A 4-celled What is the function of A on the structure? Aid in dispersal by wind What is the name of the structure? Germinating pollen.; Microgammetophyte(n). Are the sperms seen in the structure? Nope! The sperms DO NOT appear until the female gametophyte is mature. Designed by Pyeongsug Kim, ©2009

Designed by Pyeongsug Kim, ©2009 What is the structure the arrow points? function? Pollen tube; fuses with egg cell and conveys the sperms. What type of tissue system is the picture? Ground tissue system What type of tissue is seen? Function? Sclerenchyma What is the name of structure of the purple star shape? Sclereid; strengthen, support, storage Designed by Pyeongsug Kim, ©2009

What type of tissue system is in a) & b)? Vascular system #8 D b) a) C B What type of tissue system is in a) & b)? Vascular system What type of tissue is in a) & b)? a) Phloem b) Pholem Label. A: C: B: D: Sieve-tube elements (mature) Companion cells P-Protein(Phloem-protein) Parenchyma Which one can be seen in angiosperm? in gymnosperm? a) b) Designed by Pyeongsug Kim, ©2009

Designed by Pyeongsug Kim, ©2009 Phylum _____________ Genus _____________ Cycadophyta Cycas Phylum _____________ Genus _____________ Cycadophyta Zamia Designed by Pyeongsug Kim, ©2009

Designed by Pyeongsug Kim, ©2009 Is this monocot? Eudicot? How do you know? Eudicot; two cotyledons are present What stage is this embryo in? A- B- Heart stage Torpedo stage A B #11 Designed by Pyeongsug Kim, ©2009

Designed by Pyeongsug Kim, ©2009 Label. A: B: C: D: E: F: G: H: A H Stigma Anther Filament Ovary Receptacle Sepal Style Petal B G C D F E Some part is collectively called: “carpel(pistil).” Which part? A,G,& D “stamen.” Which part? “corolla.” Which part? “calyx.” Which part? B &C a bundle of H a bundle of F Designed by Pyeongsug Kim, ©2009

Briefly define the following terms. Hypogynous- Perigynous- Epigynous- Incomplete flower- Imperfect flower- Pistilate(Carpellate) – Staminate - whorls attached below the ovary. stamens and petals adnate to the calyx, forming a tube (hypanthium) at the base of the ovary. whorls attached above the ovary. A flower lacking sepals, petals, stamens, or pistils. A flower lacking either stamens or carpels. An imperfect flower having only pistils(carpels). An imperfect flower having only stamens

Designed by Pyeongsug Kim, ©2009 A Actinomorphic? Zygomorphic? A: B: Actinomorphic Zygomorphic Write the term of ovary position in each. A: B: C: Epigynous Perigynous Hypogynous Designed by Pyeongsug Kim, ©2009

Designed by Pyeongsug Kim, ©2009 What part of flower are seen in the slide A) & B)? A Anther Which one is mature or immature? How do you know? B A)-immature B)-mature Pollen grains can be seen in slide B and the wall of microsporangia is open. A A) C D Label A- B(little dots) – C- D- E- Filament Microsporocytes(2n) Microsporangia Pollen grains Pollen grain sac B) E What produce in each C & E? C: produce microsporocytes(2n) E: produce pollen Designed by Pyeongsug Kim, ©2009

Designed by Pyeongsug Kim, ©2009 What is the picture? Germinating pollen grain A Label A- B- C- B Pollen grain Sperms Tube nucleus C What is the botanical name? Microgametopyte(n); (Mature male gametophyte(n)) What happens inside? Form two sperms and pollen tube. What is double fertilization? the union of one sperm(n) with egg(n); the other sperm with two polar nuclei Designed by Pyeongsug Kim, ©2009

Determine weather each flower is Monocot or Eudicot. How do you know? B Determine weather each flower is Monocot or Eudicot. How do you know? A- Monocot;3 petals, 3 setals, 6 stamens B- Eudicot; 5 petals, 5 setals, 5 stamens Designed by Pyeongsug Kim, ©2009

Designed by Pyeongsug Kim, ©2009 How many types of flowers are seen? What are they? Two: Ray flowers, disk flowers; Name the family of this flower. Asteraceae Designed by Pyeongsug Kim, ©2009

Designed by Pyeongsug Kim, ©2009 A In the following picture, which part of the flower are cut by cross section? Ovary B How many locules are seen? 5 locules C Label. A: B: C: Ovarian wall,Ovules Placenta Locules What type of placentation? Axile Which one develops into seed? ovules D What is the ovary position in each fruit when it is in the flower stage? Superior ovary (Hypogynous) Designed by Pyeongsug Kim, ©2009

Designed by Pyeongsug Kim, ©2009 What type of placentation each? A: B: C: Parietal Axile Free Central Designed by Pyeongsug Kim, ©2009