BIO 101 Exam 1
What is Biology? Answer- Study of life; encompasses everything
-biomolecular biology and technology have brought around a new era for biology
What are the major characteristics of Life? Answer-
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BIO 101 Exam 1
What is Biology? Answer- Study of life; encompasses everything
-biomolecular biology and technology have brought around a new era for biology
What are the major characteristics of Life? Answer- 1) reproduction (DNA (deoxyribose nucleic acid); double helix shape; stores genetic info)
2) Cellular respiration (used to create energy) (metabolism; need it to perform basic functions of life; food (carbs, proteins, lipids/fats, vitamins/minerals)
3) adaptation/evolve (over large periods of times traits of organizations)
modified
4) Growth and development (DNA lays out the "plan")
5) organization (very specific; organization of organs/structure)
6) cells (basic building blocks of life; need only one to be considered living)
7) respond (response to stimuli (light, touch, heat, etc.); need in order to survive)
What is a cell? Answer- - basic building blocks of life
- not always apparent; first seen with a microscope
- cells were discovered by Hook in 1655
- first cells discovered were from cork
- theory wasn't generally accepted due to the challenge of trying to convince people of this drastic change
What is cell theory? Answer- - proposed in 1800's
- Lowest level of structure performs all characteristics of life
- arise from previously existing cells
What is metabolism? Answer- - energy breakdown; needed for food
- glucose is the "best"
- C6H12O6 (formula for glucose)
- breaks (catabolic reaction) down to car
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