Biology 155 Chapter 1 Exam Questions And
Answers 100% Pass
Living systems are - ANS The most complex chemcial systems on earth
Life is constrained by the - ANS Properties of chemistry and physics
Characteristics of all living things - ANS 1. Cellular organization
2. Ordered complexity
3. Sensitivity
4. Growth, development and reproduction
5. Energy utilization
6. Homeostasis
7. Evolutionary adaption
Cellular organization - ANS All organisms consist of one or more cells.n they carry out the
basic activities of living. Bounded by a membrane that separates it from its surroundings
Ordered complexity - ANS All living things are big complex and highly ordered.
Sensitivity - ANS All organisms respond to stimuli. Plants grow toward a source of light and
the pupils of your eye dilate when you walk into a dark room
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Growth, development, and reprod - ANS All organisms are capable of this and posses
hereditary molecules that are passed to offspring
Energy utilization - ANS All organisms take in energy and use it to perform many kinds of
work. Every muscle in your body is powered by energy from diet
Homeostasis - ANS Constant internal conditions that are different from their environment.
Evolutionary adaption - ANS All organisms interact with others and the non living
environment in ways that influence survival
Hierarchical organization #1 - ANS -cellular level: atoms, molecules, organelles, cells
Organisimall level: tissues, organs, organ systems
Atoms - ANS Fundamental element of matter
Clusters of atoms - ANS Molecules
Organelles - ANS Complex biological molecules assembled into tiny structure inside cells
Cell - ANS Basic unit of life
Tissue - ANS Groups of similar cells that act as a functional unit
Organs - ANS (Grouped fissure) body structures composed of several different tissues that
act as a structural and functional unit
Organ system - ANS Grouped organs... Nervous system