Lecture 03 Flashcards
(34 cards)
Where does the energy come from to support human activities?
It comes from food which gives glucose, fructose, sucrose, protein, lipids and polysaccharides.
What is metabolism
A set of chemical reactions which transfer bio molecules and transfer energy.
Kinetic energy
energy of motion
Potential energy
stored energy
What are the laws of thermodynamics
laws that govern energy flow in biological systems
What are the requirements to be a cell
Cells need a membrane to separate inside of the cell from the outside.
A way to encode/transmit info
Need energy to support them
What does ATP stand for
Adenosine Triphosphate
What are the two components to ATP
- Adenosine - adenine and ribose
- Tri-phosphate
ATP phosphate is held together by what?
chemical bonds - each has different energy levels
What is ATP needed for
Active transport thus is needed for all daily activities
What is Metabolism
building/breaking of carbon sources to harness/release energy
What does ATP have to do with Metabolism
ATP can be formed/consumed in this
What are the two types of main trophs
Phototroph and chemotroph
What is a phototroph
organisms that get energy from sun light (plant)
by converting carbon dioxide and water to sugar and oxygen
What is an chemotroph
organism that needs to use chemical compounds for energy
by breaking down chemical compounds into foods
what are the two carbon source trophs
autotroph and heterotroph
what is a autotroph
feeds themselves using inorganic carbon sources
What is a heterotroph
energy in carbon from organic compounds
what type of troph is cyano bacteria
photoautotroph
What type of troph is most bacteria
Chemoheterotroph
What type of troph are plants
photoautotroph
What type of troph is sulfer-oxidizing
chemoautotroph
what type of troph are animals
chemoheterotroph
What type of troph is most green-nonsulfer bacteria
photoheterotroph
