fungi Flashcards
explain the term asepsis
free from pathogens
explain the term sterility
free from organisms
name a nutrient added to the agar to enable the growth of leaf yeast
malt
describe the control you used in this investigation
agar plate without a leaf
suggest one way in which you could distinguish between edible and poisonous mushrooms
using a key
name any one example of an edible mushroom
field
name any one example of a poisonous mushroom
death cap
give a function for the stolon
aerial hyphae that allows fungus to spread quicker
give a function for the rhizoid
provide extra surface area for absorption
give a function of the sporangium
produces haploid spores
name the mode of nutrition used by rhizomes
saprophytic
the which kingdom does rhizopus belong to
fungi
what term is used to describe the nutrition of rhizopus
saprophytic
what is the term given to a collection of hyphae
mycelium
the zygospore can survive a long time in unsuitable conditions, what feature does it have that aids this survival
thick wall
give an example of an organism belonging to the same kingdom as rhizomes that is of benefit to humans
yeast
give on preparation scientists use when working with microorganisms in the laboratory
wipe surface with disinfectant
is leaf yeast a unicellular or a multicellular organism
unicellular
name the type of asexual reproduction in meat
budding
what is the purpose of malt in these plates
food
why was the underside of the leaf facing the agar
more yeast on the underside
describe two aseptic techniques that were carried out in this investigation to prevent growth of other molecules
-wipe surface with disinfectant
-wear gloves
state one correct disposal methods for these plates after the investigation
soaked in disinfectant
name the mode of nutrition used by rhizomes
saprophytic
discuss the importance in nature of the saprophytic
decomposer
name the horizontal hyphae and state their role
stolon - spreading the fungus
give a function of spores
produces new hyphae
describe one environmental condition which may stimulate sexual reproduction in this organisms
drought
describe in detail the process fo sexual reproduction in rhizopus
opposite strains of hypha, swelling form, production of progametangia, formation of gametangia
name the fungus other than yeast that you have studied
rhizopus
give one way rhizopus differs from yeast
multicellular
describe how th plates were stored, from introduction of the yeast source until yeast growth was visible not he agar
right side up for 24-48 hours upside down in incubator for 2-7 days
how did you identify the leaf yeast growing on the agar
pink colonies
suggest a reason why few or no leafy eats may have grown on the agar
pollution
how does the genetic make up of the new yeast cell relate to that of the parent cell
identical
give an advantage of asexual reproduction in organism s
rapid
give a disadvantage of asexual reproduction in organism
overcrowding
give on structural difference between fungi and plantae
fungi - have chitin
plantae - have cellulose
name the method of asexual reproduction in rhizopus
sporulation
