Biology Test 1

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Author:
PattyLove
ID:
38101
Filename:
Biology Test 1
Updated:
2010-09-28 17:36:19
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Biology Test
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Biology Test 1
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  1. Why is there a debate over whether a virus is a living thing?
    • They can’t metabolize
    • Or respond to stimuli
    • Or reproduce on its own-has to enter a host’s cell and have the host replicate for them.
  2. Domain Archaea
    • Characteristics
    • * Single celled
    • * Prokaryotic Cell- Lacks a nucleus and other membrane-bound organelles
    • * Circular DNA and small ribosomesCell membrane and cell wall

    • Differences for Bacteria
    • * Ether bonds
    • * No fatty acids
    • * Has histones on DNA
    • * Introns on DNA
  3. Domain Bacteria
    • Characteristics
    • * Single celled
    • * Prokaryotic Cell- Lacks a nucleus and other membrane-bound organelles
    • * Circular DNA and small ribosomes
    • * Cell membrane and cell wall

    • Differences from Archaea
    • * Ester bonds
    • * Fatty acids
    • * No histones
    • * No introns
  4. Domain Eukarya
    • Eurkaryotic cells- contain membrane bound organelles
    • Many have cell wall of cellulose or chitin
    • Membrane based on fatty acids
    • Contains Kingdoms Protista, Plantae, Fungi, and Animalia
  5. Kingdom Plantae
    1. Mosses
    2. Ferns
    3. Gymnosperms
    4. Angiosperms
    Kingdom Plantae Characteristics of all: Cell wall with cellulose, choroplasts, not all are photosynthetic, but at least have accessory pigment

    • 1. Mosses:
    • * Non-Vascular
    • * Seedless Plants
    • * Spores and gametes

    • 2. Ferns:
    • * Vascular
    • * Seed-producing plants
    • * Spores and gametes

    • 3. Gynosperms:
    • * Cone Plants
    • * Vascular
    • * seed-producing
    • * Naked seeds

    • 4. Angiosperms:
    • * Flowing plants
    • * Flowers and seed surrounded by a fruit

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