FCSE 3120 Lecture 1: BMS110 Section C
▪ BMS110 Section C
▪ What is Life?
▪ Chapter 1
▪ Important Concepts
▪ What Characterizes Life? (1.1)
▪ What is Homeostasis? (1.1)
▪ How do we Classify Life? (1.2)
▪ Where do humans fit into the picture? (1.2)
▪ What are the levels of organization? (1.2)
▪ How do we study science? (1.3)
▪ What is the scientific method? (1.3)
▪ What is a Theory? (1.3)
▪ Where do we obtain scientific information?
▪ The 9 Characteristics of Life (1.1)
▪ A high degree of organization
▪ Containing materials only in living organisms
▪ Acquiring and using energy
▪ Maintaining homeostasis (constant internal environment)
▪ Sensing the environment
▪ Responding to external stimuli
▪ Adapting to the environment
▪ Altering the environment
▪ Reproducing
▪ The Characteristics of Life (1.1)
▪ The 5 basic Characteristics of Life
▪ Several basic characteristics allow us to distinguish between living things (biotic) and nonliving
objects (abiotic)
1. ____________________________________________
2. ____________________________________________
3. ____________________________________________
4. ____________________________________________
5. ____________________________________________
▪ 1) Take in Energy & Material
▪ Uses energy from the environment
1. Maintenance of organization requires energy
2. Energy sources = plant and animals
• Herbivore - only eats plants
• Carnivore - mainly eat animals
• Omnivore - eat both plants and animals
3. Food -> Nutrients -> Molecules -> Broken down for energy and to make new molecules
4. Energy required to do work = movement/motion
▪ 2) Sense and respond to changes
▪ Respond to internal and external stimuli
▪ Adaptive modification to a particular way of life
▪ 3) Reproduce & Grow
▪ Reproduction
1. Cells exist only from preexisting cells = Cell theory
2. All living things have parents
3. Creates a copy to ensure continuation of kind
4. Organisms only produce same organism
• Exception: Mule, Liger, Zorse (males all sterile)
• Growth and Development
5. Growth - increase in size and number
• Egg -> Embryo -> Child -> Teenager -> Adult
6. Development - includes the repair after injury
▪ Reproduction of a Cell
▪ DNA contains Genes
▪ DNA is duplicated to daughter cells
Document Summary
Bms110 section c, what is life, chapter 1. Exception: mule, liger, zorse (males all sterile: growth and development, growth - increase in size and number. Eukaryote: eubacteria & archaebacteria, no nucleus, prokaryote, all single cell, archaean = ancient, biological classification is logical (1. 2, taxonomy identifies . Domesticus: human biology is structured and logical (1. 2, natural organization emerges from the structure of organisms. It is a system based on increasing structural complexity. Tissue - group of cells: organ - group of tissues/function together, organ system - several organs, organism, population, community. Limitations: scientific conclusions may change or be modified as our understanding and technology increases, science is a systematic study of nature, scientific method. _____________some aspect of nature: ask a question about the observation or identify a problem to explore, develop a ______________, make a prediction. Factors that can be changed in an experiment. Test whether and how they affect the outcome: common biological theories.