Lecture 29

Question 1

What is microbial ecology

Answer 1

The study of interrelationships among microorganisms and their environments

Question 2

What is a microbiome

Answer 2

all microorganisms and their genes within a particular environment

Question 3

What is the chemical energy in bonds used for

Answer 3

commonly ATP
released by the breaking of bonds and used to form bonds
release of energy does redox reactions

Question 4

What are the anabolic and catabolic processes of microbiology

Answer 4

Food is broken down into products - catabolic
this energy is used in the formation of new bonds as
monomers are made into macromolecules and other cellular components - anabolic
this process can reverse to break bonds and get energy

Question 5

What is Bacteria redox

Answer 5

the basis for energy transfer
every reaction has opposite
energy from oxidation shuttled through intermediate (NAPH/NADPH)

Question 6

What are the four types of Trophic and what does a trophic mean

Answer 6

a trophic describes an organisms energy source and carbon source
there are photo (light)
Chemo (chemical) - organic - glucose and inorganic H2S (hydrogen sulfide)
hetero ( from another) decomposer need fixed carbon
Auto (self - from CO2) - fix CO2
this makes photoautotrophs - algae, plants
chemoautotrophs - some bacteria
photoheterotrophs some bacteria
chemoheterotrophs - aerobic respiration
animal, fungi, bacteria
anarobic - few animals, protozoa, archaea

Question 7

What are the two types of photosynthesis

Answer 7

cyclic and non-cyclic

Question 8

What is non-cyclic photophosphorylation

Answer 8

electron flow — H2O –> PSII –> PSI –> NADP+

generates O2, ATP and NADPH

Question 9

What is cyclic photophosphorylation

Answer 9

PSI can work in the absence of PSII

generates ATP but no O2 (anoxygenic)