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Figuur 1 Drade van broodskimmel
Figuur 2 Sampioen met sporeplaatjies onder die “hoed”
Figuur 3 Die Botelus , nog ‘n eetbare swam

Wanneer ‘n mens swamme onder ‘n mikroskoop beskou, sien jy die klomp drade wat in alle rigtings groei. Dit lyk amper soos ‘n deurmekaar spinnerak. Elke draad het takke net soos ‘n boom. Elke tak het weer ‘n hele reeks nuwe takke. Aan die punte van sommige takke sit klein ronde balletjies. Hierdie balletjies is eintlik houers wat binnekant hol is en elkeen is propvol baie klein saadjies. Hulle word spore genoem en is so klein dat ongeveer ‘n duisend van hulle op ‘n speldekop sal pas.

Anders as groen plante het swamme nie lig nodig om voort te plant nie, maar wel lug, kos en water. ‘n Mens hoef nie swamsaadjies te plant nie; waar daar kos, lug en klammigheid is, sal die swamspore begin groei, bv. op ‘n klam handdoek. Daar is bv. altyd swamspore op ‘n vrug se skil, maar solank die vrug droog bly, kan die spore nie groei nie.

Swamme onder die mikroskoop

Opdrag 16

Kweek Van Broodskimmel

Jy gaan nou self swamme kweek. Neem twee snye witbrood en breek dit in die helfte deur. Vee met elke stukkie oor die vloer of oor die vensterbank om ‘n paar swamspore op te tel. Besprinkel die brood met water en wees versigtig om die brood nie te nat te maak nie, want dan sal dit breek. Plaas elke stukkie brood in ‘n digte houer en skroef die deksel op. Plaas die houers in ‘n warm, donker kas. Nou het die spore alles wat nodig is, naamlik kos (die brood), water en lug wat in die houer vasgevang is. Die warmte is nie noodsaaklik nie, maar dit sal die spore vinniger laat groei. Haal die houers na drie dae uit en beantwoord die volgende vrae:

KONTROLELYS JA NEE
Ek het die opdrag noukeurig uitgevoer? ______ ______
Was my opdrag suksesvol? ______ ______
Was daar ‘n donserige, wit groeisel op die brood? ______ ______
Was daar swart spore soos peperkorreltjies tussen die broodskimmel? ______ ______
Verskaf ‘n moontlike rede as jou eksperiment onsuksesvol was: ____________________________________________________________________ ____________________________________________________________________ ____________________________________________________________________ ____________________________________________________________________ ____________________________________________________________________ ____________________________________________________________________

(ii) Nut vir die mens

Benewens die feit dat sommige swamme as voedsel vir die mens dien, word dit ook as geneesmiddels gebruik. Die swam, Penisilline, maak skadelike bakterieë in die mens se liggaam dood en het ‘n wonderlike vriend van die mens geword.

Van al die swamme wat die mens gebruik, is die gisswam die bekendste. Hierdie swam help die mens om wyn te maak.

Opdrag 17

Gaan doen navorsing en vind uit hoe die gisswam daarin slaag om wyn te maak. Skryf twee paragrawe oor die werking en die ander nuttige gebruike van hierdie swam.

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‘n Voedselketting is ‘n nimmereindigende proses.

Kos is die medium waardeur materiaal verkry word om liggaamsweefsel op te bou. So word lewensenergie deur middel van die ketting oorgedra!

Assessering

Leeruitkomste 1: Die leerder is in staat om met selfvertroue op weetgierigheid oor natuurlike verskynsels te reageer, en om binne die konteks van wetenskap, tegnologie en die omgewing verbande te ondersoek en probleme op te los.

Assesseringstandaard 1.2: Dit is duidelik wanneer die leerder ondersoeke uitvoer en data versamel.

Leeruitkomste 2: Die leerders ken, interpreteer en pas wetenskaplike, tegnologiese en omgewingskennis toe.

Assesseringstandaard 2.3: Dit is duidelik wanneer die leerder inligting interpreteer.

Questions & Answers

I only see partial conversation and what's the question here!
Crow Reply
what about nanotechnology for water purification
RAW Reply
please someone correct me if I'm wrong but I think one can use nanoparticles, specially silver nanoparticles for water treatment.
Damian
what is the stm
Brian Reply
is there industrial application of fullrenes. What is the method to prepare fullrene on large scale.?
Rafiq
industrial application...? mmm I think on the medical side as drug carrier, but you should go deeper on your research, I may be wrong
Damian
How we are making nano material?
LITNING Reply
what is a peer
LITNING Reply
What is meant by 'nano scale'?
LITNING Reply
What is STMs full form?
LITNING
scanning tunneling microscope
Sahil
how nano science is used for hydrophobicity
Santosh
Do u think that Graphene and Fullrene fiber can be used to make Air Plane body structure the lightest and strongest. Rafiq
Rafiq
what is differents between GO and RGO?
Mahi
what is simplest way to understand the applications of nano robots used to detect the cancer affected cell of human body.? How this robot is carried to required site of body cell.? what will be the carrier material and how can be detected that correct delivery of drug is done Rafiq
Rafiq
what is Nano technology ?
Bob Reply
write examples of Nano molecule?
Bob
The nanotechnology is as new science, to scale nanometric
brayan
nanotechnology is the study, desing, synthesis, manipulation and application of materials and functional systems through control of matter at nanoscale
Damian
Is there any normative that regulates the use of silver nanoparticles?
Damian Reply
what king of growth are you checking .?
Renato
What fields keep nano created devices from performing or assimulating ? Magnetic fields ? Are do they assimilate ?
Stoney Reply
why we need to study biomolecules, molecular biology in nanotechnology?
Adin Reply
?
Kyle
yes I'm doing my masters in nanotechnology, we are being studying all these domains as well..
Adin
why?
Adin
what school?
Kyle
biomolecules are e building blocks of every organics and inorganic materials.
Joe
anyone know any internet site where one can find nanotechnology papers?
Damian Reply
research.net
kanaga
sciencedirect big data base
Ernesto
Introduction about quantum dots in nanotechnology
Praveena Reply
what does nano mean?
Anassong Reply
nano basically means 10^(-9). nanometer is a unit to measure length.
Bharti
do you think it's worthwhile in the long term to study the effects and possibilities of nanotechnology on viral treatment?
Damian Reply
absolutely yes
Daniel
how to know photocatalytic properties of tio2 nanoparticles...what to do now
Akash Reply
it is a goid question and i want to know the answer as well
Maciej
characteristics of micro business
Abigail
for teaching engĺish at school how nano technology help us
Anassong
How can I make nanorobot?
Lily
how did you get the value of 2000N.What calculations are needed to arrive at it
Smarajit Reply
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Source:  OpenStax, Natuurwetenskappe graad 6. OpenStax CNX. Sep 17, 2009 Download for free at http://cnx.org/content/col11080/1.1
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