GENERAL BIOLOGY: EXAM 1 QUESTIONS
WITH DETAILED VERIFIED ANSWERS
Atom Ans: Fundamental building block of all matter
Molecule Ans: Two or more atoms
Cell Ans: Basic form of life; smallest unit of life
Organ Ans: A grouping of tissues engaged in a collective task
Tissue Ans: Specialized cells organized in a pattern
Organelle Ans: Structure that carries out a specialized metabolic
function within a living cell
Organ System Ans: A set of organs engaged in a collective task that
keeps the body functioning properly
Organism Ans: Individual that consists of of one or more cells
Population Ans: Grouping of the same species
Community Ans: All populations of all species in a given area; looks at
interaction between the species
Ecosystem Ans: All biotic and abiotic things; a community interacting
with its environment
Biosphere Ans: All ecosystems on the planet
*Gaia Theory: planet is one big organism
Characteristics of Life Ans: All living things:
1) Are made up of cells *
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2) Have different levels of organization
3) Obtain and convert energy from environment *
4) Respond to their environment *
5) Get larger and more complex throughout life
6) Reproduce *
7) Adapt to their environment; Homeostasis *
Carbohydrates Ans: 1:2:1 CH2O
- Monosaccharides: simple sugars (glucose)
- Oligosaccharides: few sugars (sucrose)
- Polysaccharides: complex carbs; storage & structure (starch)
*Biologically important molecule
Proteins Ans: Composed of amino acid monomers
- Complex
- 3D enzymes
- Diverse
*Biologically important molecule
Lipids Ans: Non polar; doesn't dissolve in H2O
- Triglycerides: monomers of fatty acids & glycerol
- Phospholipids: bipolar molecule
- Steroids: 4 carbon rings