fungi

Question 1

explain the term asepsis

Answer 1

free from pathogens

Question 2

explain the term sterility

Answer 2

free from organisms

Question 3

name a nutrient added to the agar to enable the growth of leaf yeast

Answer 3

malt

Question 4

describe the control you used in this investigation

Answer 4

agar plate without a leaf

Question 5

suggest one way in which you could distinguish between edible and poisonous mushrooms

Answer 5

using a key

Question 6

name any one example of an edible mushroom

Answer 6

field

Question 7

name any one example of a poisonous mushroom

Answer 7

death cap

Question 8

give a function for the stolon

Answer 8

aerial hyphae that allows fungus to spread quicker

Question 9

give a function for the rhizoid

Answer 9

provide extra surface area for absorption

Question 10

give a function of the sporangium

Answer 10

produces haploid spores

Question 11

name the mode of nutrition used by rhizomes

Answer 11

saprophytic

Question 12

the which kingdom does rhizopus belong to

Answer 12

fungi

Question 13

what term is used to describe the nutrition of rhizopus

Answer 13

saprophytic

Question 14

what is the term given to a collection of hyphae

Answer 14

mycelium

Question 15

the zygospore can survive a long time in unsuitable conditions, what feature does it have that aids this survival

Answer 15

thick wall

Question 16

give an example of an organism belonging to the same kingdom as rhizomes that is of benefit to humans

Answer 16

yeast

Question 17

give on preparation scientists use when working with microorganisms in the laboratory

Answer 17

wipe surface with disinfectant

Question 18

is leaf yeast a unicellular or a multicellular organism

Answer 18

unicellular

Question 19

name the type of asexual reproduction in meat

Answer 19

budding

Question 20

what is the purpose of malt in these plates

Answer 20

food

Question 21

why was the underside of the leaf facing the agar

Answer 21

more yeast on the underside

Question 22

describe two aseptic techniques that were carried out in this investigation to prevent growth of other molecules

Answer 22

-wipe surface with disinfectant
-wear gloves

Question 23

state one correct disposal methods for these plates after the investigation

Answer 23

soaked in disinfectant

Question 24

name the mode of nutrition used by rhizomes

Answer 24

saprophytic

Question 25

discuss the importance in nature of the saprophytic

Answer 25

decomposer

Question 26

name the horizontal hyphae and state their role

Answer 26

stolon - spreading the fungus

Question 27

give a function of spores

Answer 27

produces new hyphae

Question 28

describe one environmental condition which may stimulate sexual reproduction in this organisms

Answer 28

drought

Question 29

describe in detail the process fo sexual reproduction in rhizopus

Answer 29

opposite strains of hypha, swelling form, production of progametangia, formation of gametangia

Question 30

name the fungus other than yeast that you have studied

Answer 30

rhizopus

Question 31

give one way rhizopus differs from yeast

Answer 31

multicellular

Question 32

describe how th plates were stored, from introduction of the yeast source until yeast growth was visible not he agar

Answer 32

right side up for 24-48 hours upside down in incubator for 2-7 days

Question 33

how did you identify the leaf yeast growing on the agar

Answer 33

pink colonies

Question 34

suggest a reason why few or no leafy eats may have grown on the agar

Answer 34

pollution

Question 35

how does the genetic make up of the new yeast cell relate to that of the parent cell

Answer 35

identical

Question 36

give an advantage of asexual reproduction in organism s

Answer 36

rapid

Question 37

give a disadvantage of asexual reproduction in organism

Answer 37

overcrowding

Question 38

give on structural difference between fungi and plantae

Answer 38

fungi - have chitin plantae - have cellulose

Question 39

name the method of asexual reproduction in rhizopus

Answer 39

sporulation