Unit 1 - Biological organization Flashcards
Cell processes, classification systems, features of organisms
MRS ^C GREN
Movement Reproduction Sensitivity Cells Growth Respiration Excretion Nutrition
What is a species?
A group of organisms capable of reproduction and producing fertile offspring
Plant Organism Features
- multicellular 2. Eukaryotic cells 3. Cell walls made of cellulose 4. Autotrophs
Animal Organism Features
- Multicellular 2. Eukaryotic cells 3. No cell wall 4. Heterotrophs
Fungi Organism Features
- Multicellular 2. Eukaryotic cells 3. Cell wall made of chitin 4. heterotrophs
Bacteria (Prokaryotes) Organism Features
- Unicellular 2. Prokaryotic cells 3. cell walls made of peptidoglycan 4. Autotrophs or Heterotrophs
Protoctists Organism Features
eg algae, slime moulds
- Unicellular 2. Eukaryotic cells 3. no cell wall 4. Heterotrophs or Autotrophs
Unicellular
cant see with the naked eye
Eukaryotic cells
contain a nucleus and organelles bound by plasma membrane
Prokaryotic cells
no membrane
Autotroph
produce their own food.
i.e. photosynthesis
Heterotroph
Does not make its own food.
Arthropod features
3
Jointed legs, segmented bodies, and a hard exoskeleton made of chitin.
insects
autotrophs
three body segments, six legs
aracnids
autotrophs
two body sections, eight legs
Crustaceans
autotrophs
two body segments and atleast eight legs
Myriapods
Arthropods
many segments, lots of legs
cotyledon, veins, vascualr bundles, roots, petals
Monocots
- one cotyledon 2. veins usually parallel 3. vascular bundles usually complexely arranged 4. Fibrous root system 5. floral parts usually in multiples of three
Dicots
- two cotyledon 2. veins usually net-like 3. vascular bundles usually aranged in a ring 4. taproot usually present 5. floral parts usually in multiples of four-five
Fern Classification
Do have a vascular system . Reproduce using spores
Flowering plants
Vascular tissue. Reprosuce using seeds found in fruits.
What are viruses limited to?
a protein coat and genetic material
