Bio 111 Lab Practical 2 Flashcards
Fetal Pig Inner Anatomy
-Trachea (larger tube, above heart)
-Esophagus (thinner tube, to right of trachea)
-Heart (obvious)
-Lungs (on either side of the heart)
-Diaphragm (layer of muscle beneath heart and lungs)
-Liver (large, dark colored three lobed organ beneath diaphragm)
-Gall bladder (small round organ under the left lobe of the liver)
-Stomach (to the right of the liver)
-Spleen (thin organ beneath the stomach)
-Large intestine (thicker, shorter intestine)
-Small intestine (longer, thinner intestine beneath large intestine)
-Urinary bladder (last organ, sac-like)
Fetal Pig Oral Anatomy
-Incisor (tooth at top of hard palate)
-Canine (beneath incisor)
-Hard Palate (ridged palate closest to snout)
-Soft Palate (beneath hard palate)
-Nasopharynx (opening at bottom of soft palate)
-Epiglottis (flap of skin that covers nasopharynx)
Alternation of Generations
-Plant life cycle includes haploid gametophyte and diploid sporophyte
Gametophyte
-produces gametes (eggs/sperm) by mitosis
-haploid (n)
Sporophyte
-produces spores by mitosis
-diploid (2n)
Plant life cycle
Gametophyte (haploid)->Gametes->Fertilization->Sporophyte(diploid)->Meiosis->Spores(haploid)->Germination->Gametophyte
Bryophytes
-mosses
-non-vascular
-gametophyte dominant
-tall budding stems are sporophytes
-base, stereotypical moss is gametophyte
Thallus
-flat, leaf like gametophyte of liverwort
Moss Antheridia
-‘male’ part of moss
-produces sperm
-thicker, filled in ovals among finger-like parts
Moss Archegonia
-‘female’ part of moss
-produces egg
-tall, filled in spindles with clear space for egg in middle
Parts of Moss Antheridia
-sterile jacket (outer casing of filled in oval)
-sperm (the dark specks filling in the oval)
Parts of Moss Archegonium
-neck (thinner top portion)
-ventor (space for egg in center)
-egg (speck in middle of space)
-stalk (bottom portion)
Moss Capsule
-contains haploid spores
-‘bud’ at top of tall stalks of moss plant
Moss Protonemata
-young gametophyte formed from spores
-look like sperm in image
Full Moss Anatomy Image
-Gametophyte (bottom part of moss, looks spiny, root structure)
-Sporophyte (top, stalk parts of moss plant)
-Foot (where tall stalks rise out of base moss)
-Seta (stalk part of top moss plant)
-Capsule (‘bud’ at top of tall stalk parts of moss plant)
-Operculum (top ‘cap’ of capsule)
-Caplyptra (point at top of capsule bud)
Ferns
-vascular plant
-no seeds
-diploid (2n) sporophyte dominant
Sori
-dots on underside of fern leaf
-produce spores
-looks like sideways balloon with circles (spores) in it in microscope image
Megaphylls
-leaf of fern/underside of leaf of fern
Fern Gametophyte
-‘heart’ shaped, dyed blue in most images
-contain both antheridia (male, at bottom of ‘heart’, shown as small dots in microscope image) and archegonia (female, in top ‘crease’ of ‘heart’, shown as larger, thicker dots in microscope image)
-Rhizoids (root like structures at bottom of ‘heart)
Fern Gametophyte with Sporophyte Image
-gametophyte (dyed blue, heart shaped)
-sporophyte (green ‘wormie’ growing out of ‘heart’)
-base of ‘wormie’ is archegonia where sporophyte zygote formed
Gymnosperms
-pine tree as example
-vascular
-has seeds (pine cones)