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November Assessments 2021: Quick Glance Questions - Coggle Diagram
November Assessments 2021:
Quick Glance Questions
chapter 4 (soil formation and classification)
Igneous rock : granIte
SeDimentary rock: SanDstone/ limeStone
Metamorphic:
(s) liMestone -> Marble
(s)Shale -> Slate
(i)Granite -> Gneiss
soil profiles
O ~ organic matter
A ~ topsoil
B ~ subsoil
C ~ contains parent material
R ~ bedrock
podzol profile:
O horizon
A1
A2
B2
iron pan
C
chapter 30 (pigs)
oestrus cycle: 21 days
duration of oestrus 2-3 days
gestation 115 days
biosecurity (reduces risk of disease).
all visitors must disinfect their shoes with iodine at a disinfection point.
not to allow access to visitors frequently, especially other pig farmers - not to cross contaminate
all-in/all-out pig movement
disinfection all areas -after movement and farrow, etc
vaccinations
intensive vs extensive farming : lowland vs mountain, more labor more costs,etc
sheep (28 & 29)
breeding strategy
mountain draft ewe (declined fertility) crosserd with a prolific (bluefaced leister) producing a crossbred mule, which can be further crossed with a terminal sire (suffolk/texel) for Easter/ Mid season lambs
infiltration experiment
set up a x2 filter funnel on a retort stand,
compacted soil in one and uncompacted soil in the other,
beakers below,
using a graduated cylinder with equal amounts of water - pour the water onto each soil smaple
time how quickly the first drop comes thrrough the soils
or
measure the amount of water that has passed through at given periods of time.
organic matter % of soil sample amnd convert to organic carbon
weigh the mass of soil sample (including crucible)
put the crucible on a pipe clay triangle on a tripod stand
heat below with a Bunsen burner - the humus (OM) should glow red as it burns and smoke will be produced
continue to burn until there is no more smoke
remove crucible with tongs and reweigh the mass.
calculate the % of OM in soil
mass of organic matter
__
x 100/1
mass of original soil sample
chapter 9 (plant physiology )
xylem: transports water and minerals
vessels and tracheids
phloem: transports food
photosynthesis
makes their own food
breaks CO2 apart:
light
water and co2 -----> glucose and oxygen
chlorophyll
repiration
takes place in the mitochondria
is the catabolic reaction to produce energy.
aerobic repiration requires oxygen
glucose + oxygen -----> co2 + water + energy
chapter 10 (applied plant genetics)
progeny testing: the comparison of an animal/plant's offspring with another's offspring under the same conditions
ear to row:
50-100 plants are selected based on their phenotypes(physical apperance) and open pollinate.
seeds are harvested seperatly.
rows are evaluated on desirable traits - superior plants are identified
selected plants open pollinate.
small progency rows are grown again
genotyping: determinging differences in genetic make up (genotype) by examining DNA
Genome: complete set of DNA
selective breeding:
disease/pest/drougt resistance
yield
flavour
genotype = genetic make up
phenotype = physical apperance
genetic modification:
alteration of an organism's DNA for improvement
transgenic species: any organism that has part of the DNA of another - through genetic engineering
cisgenic: organism modified with DNA from same species/closely related species
link to cisgenic: organism modified with DNA from same species
genome editing: the use of any technology that allows a change to an organism's DNA.
subgenic: alteration of the genotype by removal/addition of DNA (not from other species)
esthics and economics:
access to technology
crop testing
increased production
benifits to biodiversity
effect on food chain
environmental impact