biotechnology (b) waste
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Biotechnology (b) Waste. SQA Questions. What you should know. ewage. eed. oxygen. When untreated s_______ is added to rivers bacteria f____ on and breakdown the sewage using up the ______. Fish and other animals ___ due to l___ of oxygen - PowerPoint PPT PresentationTRANSCRIPT
Biotechnology (b) Waste
SQA Questions
What you should know1. When untreated s_______ is added to rivers
bacteria f____ on and breakdown the sewage using up the ______. Fish and other animals ___ due to l___ of oxygen
2. U_______ sewage can spread c______, t______ and d_________
3. Sewage treatment includes its breakdown by d_____ microbes to products which are h__________ to the e___________.
4. C__________ breakdown of sewage is only possible in a_________ conditions as anaerobic respiration is much less e________ and only p________ digests the sewage.
ewageeed
oxygendie ack
ntreated holerayphoid ysentery
ecayarmless nvironmentomplete
erobicfficient
artially
5. Sewage contains many t_____ of waste so a r_____ of microbes is needed to break it down c________
6. During sewage treatment oxygen is provided by either t_______ the sewage over f_______ beds or bubbling c_________ air through the sewage
7. Microbes can improve (u_______) waste into useful products such as p_______ food from microbes grown on waste s_____ and m______ (biogas) from domestic waste dumps. Industry can make m_______ from this upgraded waste
ypes
ange
ompletely
rickling ilter
ompressed
pgrade
rotein
ugar ethane
oney
water
typhoid cholera dysentery
Microbes get energy
aerobic
Range of microbes used
8. Microbes can take l___ g_____ waste with little e______ or p______ and convert it to high grade material with h___ energy and/or high p_______
9. A______ and m______ are products of fermentation
10. Fermentation fuel is r________ whereas f_____ fuels are non renewable
11. Under s______ conditions, microbes can reproduce very rapidly by a_______ means
12. Microbes may be h_______ to provide p_____ rich f____ for animals or h_______
ow radenergy protein
igh
rotein
lcohol ethane
enewable
ossil
uitablesexual
arvested rotein
ood umans
13.When working with b________ in the lab you must use s_______ techniques to k__ microbes or p_______ c___________ e.g. washing surfaces with d___________ and h________ to a very high t___________
14.Bacteria can produce r__________ spores which can o_______ be killed by s______ cleaning at ____ °C
15.Microbes breakdown o______ matter to get e_______ and are important in the recycling of c______ and n________
acteria
terile
ill revent
ontamination
isinfectant eating
emperature
esistant
nly
team 125
rganic
nergy
arbon itrogen
Recycling
Nitrogen Cycle 1
Nitrates
Animal protein
Nitrites
Nitrogen fixing bacteria
Denitrifying bacteria
Nitrogen fixing bacteria
decay bacteria
decay bacteria
eats
nitrifying bacteria
nitrifying bacteria
Nitrogen fixing bacteria
decay bacteria
denitrifying bacteria
Nitrogen fixing bacteria
Animal protein
Nitrites
5132
Nitrates
Nitrifying bacteria
E eating
F uptake by roots
D nitrogen fixing
B denitrification
C decay and decomposition
Carbon cycle
Animal CHO
fuels
eats
RESPIRATION
photosynthesis
death death
Plant CHOburning
Photosynthesis
RESPIRATION
eats
death death
photosynthesis
respiration
respiration
Respiration by decay microbes
burning
eats
death
Dead bodies
Fossil fuels