1 - Life: Biological Principles & the Science of Zoology Flashcards
What is zoology?
Scientific study of animal life
What are the defining properties of life?
- The body of a living organism is highly organized
- Living organisms can process energy
- Living organisms respond to stimuli
- Living organisms can reproduce
- DNA is transmitted from one generation to the next
- Living organisms grow and develop
- All living organisms can move
- Living organisms undergo genetic changes over time
SOMEREDGrow
Stimuli, Organized, Move, Evolution, Reproduce, Energy, DNA, Grow
How is the cell organized
Monomeric units –> macromolecules –> organelles (supramolecule complexes) –> cell
How are organisms organized
Cells –> tissues –> organs –> organ systems –> organisms
Which are the simplest animals
Porifera/sponges ; just cells
What animals are just tissues
Cnidaria (cylinterates)
These animals utilize sunlight. Give examples
Autotrophs (plants, algae, cyanobacteria)
Is photosynthesis anabolic or catabolic?
Anabolic (build up)
Is cellular respiration anabolic or catabolic? How?
Catabolic (breaking down)
Glucose is broken down, ATP is released
This is anything that can make a living organism react
Stimulus
This is when animals stick together in cold
Huddling (emperor penguins)
Differentiate asexual and sexual
Asexual - 1 parent, identical, no gametes
Sexual - sperm + egg, recombination
What is the relationship of genes, DNA, and chromosome
genes make up DNA
DNA becomes chromosome when undergoing cellular division
Differentiate animal growth vs development
Growth: increase in cell number, size
Development: more broad term, all changes
What is ecdysis
Shedding