BIOSC 0805 Lecture Notes - Lecture 1: Cellular Respiration, Blood Sugar, Homeostasis
7 Sep 2017
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Document Summary
Shared characteristics of life: life is organized. Eating, gaining nutrients: life requires materials and energy. Metabolism: all of the chemical reactions that occur within a cell/organism. Cellular respiration: energy transforming reactions that allow our cells. Photosynthesis is how plants make sugar, then we can eat it and make (specifically the mitochondria) to make atp from the nutrients we eat. Homeostasis: maintenance of near constant internal conditions through self- regulating mechanisms (body temp, blood sugar levels, etc. ), your body has to stay in a certain range. Many organ systems work together to monitor and regulate. Negative feedback regulation: most common body regulation to keep things at a steady level: living organisms respond to stimuli, living organisms can reproduce and develop. Reproduction: production of a new individual with genetic information from parent(s) Growth: increase in size and/or number of cells. Development: all the changes that occur within an organism from fertilization until death: living organisms have a shared evolutionary history.
