Unit 8Db Microscopic Fungi

Fill-in-the-blank practice flashcards covering Unit 8Db Microscopic Fungi concepts, including yeast structure, respiration, budding, and experiments.

Ringworm was thought to be caused by worms until the 1840s, when __________ used a microscope to discover a fungus in the 'rings'.

David Gruby

Louis Pasteur (1822–1895) used a microscope to show that ethanol was not produced without __________.

yeast

In the diagram of a yeast cell shown below, the structure labeled surrounding the cell membrane is the __________.

Cell Wall

The anaerobic respiration of microorganisms is called __________.

fermentation

The word equation for aerobic respiration in yeast is glucose + oxygen $\rightarrow$ __________ + water.

carbon dioxide

The word equation for anaerobic respiration (fermentation) in brewing is glucose $\rightarrow$ carbon dioxide + __________.

ethanol

Unicellular yeasts reproduce using __________, which is a type of asexual reproduction where a daughter cell grows out of a parent cell.

budding

In yeast budding, the mark remaining on the parent cell where a previous bud separated is called a __________.

scar left by previous bud

To grow and reproduce, yeast cells need resources such as moisture, sugar, and __________.

warmth

Something that slows down or stops a process, such as sugar running out for a yeast population, is called a __________.

limiting factor

On a yeast population growth curve, as glucose starts to run out, population growth slows down and the line on the graph becomes __________.

level

In an experiment testing for carbon dioxide production by yeast, the presence of carbon dioxide turns __________ cloudy.

limewater

In the investigation into rising dough, the recipe requires mixing $10\,\text{g}$ of sugar, $3.5\,\text{g}$ of yeast, and $100\,\text{g}$ of bread flour with __________ of water.

$$120\,\text{cm}^3$$

Thread-like structures that make up the main body of a fungus and absorb nutrients from the environment are called __________.

hyphae

A network of hyphae that forms the vegetative part of a fungus is called a __________.

mycelium