Exam 5 New Material Flashcards

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1
Q

Blastula

A

hollow mass of cells

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2
Q

Blastoderm

A

Actual layer of cells, enclosing the blastocoel

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3
Q

Blastocoel

A

Fluid filled central cavity

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4
Q

Gastrula

A

surface cells move inward to form this

cells begin to differentiate

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5
Q

The ten phyla are broken down under 4 categories

A

No tissue vs. true tissue (1)
Radial symmetry vs. bilateral symmetry (2)
body cavity type (3,4,5)
protostome vs deuterostome (6,7,8,9,10)

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6
Q

Parazoa vs Eumetazoa

A
Tissue: A group of cells functioning together with specialized functions
Lack symmetry
1. Porifera (Sponges)
Parazoa: lack tissue
Eumetazoa: true tissue
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7
Q

Radial Symmetry

A

diploblast
have endoderm (lining of the digestive tract) and ectoderm (the outer covering)
2. Cnideria (jellyfish)

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8
Q

Bilateral Symmetry

A

triploblast
have endoderm, ectoderm and mesoderm (muscles and most organs)
cephalization (concentration of nerves)

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9
Q

Coelom

A

fluid lined body cavity that separates the gut from the outer body wall, protects organs

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10
Q

Acoelomates

A

Do not have a coelom
FLATWORMS
3. Platyhelminthes

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11
Q

Coelomates

A

have a coelom

ANNELIDS

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12
Q

Pseudocoelomates

A

Combination of both
NEMATODES
4. Rotifera (rotifers)
5. Nematoda (roundworms)

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13
Q

Protostomes

A
mouth developed first
spiral
determinate cleavage (fate is determined)
6. Mollusks
7. Annelids
8. Arthropods
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14
Q

Deuterostomes

A
anus developed first
radial 
indeterminate (totipotent)- develop into anything
9. Echinoderms
10. Chordates
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15
Q

Protostome Coelomates

A

last 5 groups

Coelomate has the body cavity surrounded by tissue

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16
Q

Molluska

A
snails, octopuses, clams, sea slugs
muscular foot (movement), visceral mass (housing organs) and mantle (tissue layer)
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17
Q

Annelida

A

earthworms, leeches
begin to see segmentation
earthworms aerate soil and add nutrients

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18
Q

Arthropoda

A
most successful
insects, spiders, crustaceans 
exoskeleton made of chitin
- limits molting
true body segmentation
jointed appendages
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19
Q

Echinoderms

A
deuterstome coelomates
star fish, sea cucumbers, sea urchins
radial symmetry as an adult
bilateral symmetry at larval stage
tube feet- suction cup appendages
water vascular system
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20
Q

Cordata

A
fish, birds, mammals, reptiles, amphibians
Have:
Bilateral symmetry
Internal skeleton
Pharyngeal slits
Dorsal, hollow nerve chord
Notochord
Ventral heart
Tail
21
Q

3 subphyla of Chordates

A

Urochordates
-Sea squirts
- lose chordate features as an adult
Cephalochordates
-paedogenesis (sexual maturity in the larval stage
-as an adult, they show all chordate characteristics
Vertebrates
-cranium, vertebral column, cephalization

22
Q

Agnathans

A

first types of fish

hagfish and lamprey

23
Q

Condrichthyes

A

sharks and rays

skeleton made of cartilage

24
Q

Osteichtyhes

A

skeleton made of bone

ray finned

25
Q

Amphibians

A

first land vertebrates
Show:
Limbs, Lungs, Live in moist areas and Internal fertilization

26
Q

Reptiles

A

turtles, snakes, lizards
Amniotes (eggs)
skin made of keratin
Amniotic egg

27
Q

Birds

A

Arose from dinosaurs
feathers made of keratin
light, hollow bones
reduced organs

28
Q

mammals

A

modified skeleton
fur made of keratin
mammary glands

29
Q

Monotremes

A

Lay eggs (platypus)

30
Q

Marsupials

A

pouch young (kangaroos)

31
Q

Eutherians

A

placental (monkeys, cats, elephants)

32
Q

Altricail

A

young is less developed

33
Q

Precocial

A

young is more developed

34
Q

Cellular Respiration

A

Glycolysis, Krebs cycle, ETC (oxidative phosphorylation)

35
Q

NAD+ and FAD

A

oxidized form

36
Q

NADH and FADH2

A

reduced form

37
Q

Glycolysis

A
Glucose (6C) to pyruvate (2 3C)
in the cytosol of all cells
ADP becomes phosphorylated
Goes in: 1 glucose, 2 ATP, 4 ADP, 2 NAD+
Comes out: 2 pyruvate, 4 ATP, 2 NADH
Net: 2 pyruvate, 2 ATP, 2 NADH
38
Q

O2 isn’t present

A

goes to lactic acid fermentation
Get NAD+ back
Terminal electron acceptor: pyruvate

39
Q

O2 is present

A

regenerate NAD+

Electron acceptor: O2

40
Q

Krebs

A

Pyruvate gets transferred to acetyl CoA
Goes in: 1 acetyl CoA, 3 NAD+, 1 FAD, 1 ADP
Comes out: 3 NADH, 1 FADH2, 1 ATP
THIS PROCESS GOES AROUND TWICE

41
Q

Electron Transport Chain

A
NADH and FADH2 deliver high energy electrons
NADH dehydrogenase: strips the electrons
ATP Synthase: protein that transfers H+
Oxidative Phosphorylation
NET gain, 34 atp
42
Q

Photsynthesis

A

Light energy converts to chemical energy

43
Q

Stroma

A

space in the middle

44
Q

Granum

A

each specific stack of disks

45
Q

Thylakoid Disks

A

stacks of disks

46
Q

Light reactions

A
  1. Light hits Thykaloid
  2. Water gets broken down
    goes to ETC to decrease energy (Photosystem 2)
  3. Same process, but different pigmentation (Photosystem 1)
    NADP+ gets reduced to NADPH
    Overall gain: ATP, NADPH, O2
47
Q

Calvin cycle (Dark Reactions)

A

Goes in: ATP and NADPH

Comes out: Sugar, ADP, NADP+ and phosphate

48
Q

Fixation

A

CO2 attaches to one 5-carbon (RuBP)
The enzyme rubisco helps
CO2 enters through the stomata
Creates an unstable molecule, so divides into 2 3C molecules

49
Q

Reduction

A

2 3C molecules are phosphorylated by ATP and reduced by NADPH
BECOMES G3P
Gets recycled to RuBP, but some G3P leaves to become glucose