[microbiology]Metabolism - Energy, Enzymes, and Regulation

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Metabolism: Energy, Enzymes, and Regulation에 관한 내용 정리 파워포인트 자료입니다.

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Chapter 8
Metabolism: Energy, Enzymes, and Regulation
Energy and Work
energy
capacity to do work or to cause particular changes
Types of work carried out by organisms
chemical work
synthesis of complex molecules
transport work
take up of nutrients, elimination of wastes, and maintenance of ion balances
mechanical work
movement of organisms or cells and movement of internal structures

Energy currency of cells
ATP
used to transfer energy from cell’s energy-conserving systems to the systems that carry out cellular work
The cell’s energy cycle
The Laws of Thermodynamics
thermodynamics
a science that analyzes energy changes in a collection of matter called a system (e.g., a cell)
all other matter in the universe is called the surroundings
Energy units
calorie (cal)
amount of heat energy needed to raise 1 gram of water from 14.5 to 15.5°C
joules (J)
units of work capable of being done by a unit of energy
1 cal of heat is equivalent to 4.1840 J of work

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