VEN 003 Exam Questions and Answers Fully Solved Latest Version 2025-2026
7 Ways Wine Can be Classified - Answers Color, Grape Variety, Price, Place of Origin Sweetness,
CO2, and Alcohol level
What Kind of Wines are Taxed Higher than Still Wines? - Answers Sparkling and dessert
Alcohol taxation in the US includes... - Answers Federal Excise Tax + State Tax
Table Wine - Answers Refers only to the alcohol concentration of 14% or less
Mead - Answers -Fermented beverage
-Made with honey
What type of climate is best for wine? - Answers Mediterranean Climate
Alcohol - Answers -ethyl alcohol
-ethanol
European Wine Grape - Answers Vitis Vinifera
Cabernet Sauvignon - Answers Red wine grape variety, Bordeaux Region (France)
Pomace - Answers seeds and skin after pressing
Yeast - Answers -Microbes
-Fungus
-One single cell
Pinot Nior - Answers -Red Grape
-Burgundy, France
-Important component of champagne
-Grown in coolest regions of CA
Sauvingnon Blanc - Answers -White Wine Grape
-Bordeaux and Loire Valley, France
-Wines from this grape can be called Fume Blanc
Reisling - Answers -White Wine Grape
-Germany
,-Not widely grown in CA
Raisin Grape - Answers -Thompson Seedless
Vitis Labrusca - Answers -Concord grape
-Used to make grape juice and jelly
Muscafinia Rotundifolia - Answers -Southeastern grape species used for fresh fruit and jelly
-Immune to Pierce's Disease
Phylloxera - Answers -An insect that attacks the roots of grapevines
-Native to the U.S. but was taken to Europe in the 1800s where it killed a large percentages of
vineyards and vines
Hybrid Direct Producers - Answers -Cross of European wine grapes with American grape
species
-Resistant to phylloxera can be achieved but wine quality was low
Wine Yeast - Answers -Saccharomyces cerevisiae
-exists naturally
-Out-competes wild yeast in a mixed fermentation
Grafting - Answers -Physically attaching a vinifera top (scion) to a rootstock from an American
species
Powdery Mildew - Answers -Disease that affects the leaves and fruit
-Widespread in both CA and Europe
-Controlled by dusting or spraying the vines with sulfur or by applying fungicides
Downy Mildew - Answers -Serious fungal disease prominent in Europe
-Rarely occurs in CA
Botrytis - Answers -Fungus that infects the fruit cluster and causes bunch rot
-Can produce a rich sweet wine
"Noble root"
When does the vine cycle begin in CA? - Answers April 1st
Veraison - Answers -Onset of ripening
, -Begins when berries start to develop color and soften
When is fruit harvested? - Answers Around September 15th
Fermentation Equation - Answers C6H123O6 --> 2CH3CH2OH + 2CO2
glucose Zenthonal 2CO2
Log Phase - Answers When the culture begins to grow exponentially.
How To Calculate Ethanol Yield - Answers Multiply initial sugar concentration by 0.55 = final
alcohol %
Lactic Acid Bacteria - Answers -Grows well under low oxygen
-Can sometimes cause undesirable compounds
-Found on surface of grape and leaves
Brettanomyces - Answers -A wild yeast
-Makes wine unpleasant to drink
-Ethanol tolerant
-SO2 sensitive
-Developed mostly in red wines
Acetic Acid Bacteria - Answers -Acetobacter Species
-"Vinegar Bacteria
-Required O2
-SO2 sensitive
What decides when the time of harvest is? - Answers Sugar and acid concentrations of the
grapes
Lag Phase - Answers When the yeast adjusts to its new environment.
Chardonnay - Answers -Main White Wine Grape
-Important component of Champagne and sparkling wines
-Widely grown in CA
Budding - Answers When a daughter cell forms and separates from the mother cell leaving a
budscar.
7 Ways Wine Can be Classified - Answers Color, Grape Variety, Price, Place of Origin Sweetness,
CO2, and Alcohol level
What Kind of Wines are Taxed Higher than Still Wines? - Answers Sparkling and dessert
Alcohol taxation in the US includes... - Answers Federal Excise Tax + State Tax
Table Wine - Answers Refers only to the alcohol concentration of 14% or less
Mead - Answers -Fermented beverage
-Made with honey
What type of climate is best for wine? - Answers Mediterranean Climate
Alcohol - Answers -ethyl alcohol
-ethanol
European Wine Grape - Answers Vitis Vinifera
Cabernet Sauvignon - Answers Red wine grape variety, Bordeaux Region (France)
Pomace - Answers seeds and skin after pressing
Yeast - Answers -Microbes
-Fungus
-One single cell
Pinot Nior - Answers -Red Grape
-Burgundy, France
-Important component of champagne
-Grown in coolest regions of CA
Sauvingnon Blanc - Answers -White Wine Grape
-Bordeaux and Loire Valley, France
-Wines from this grape can be called Fume Blanc
Reisling - Answers -White Wine Grape
-Germany
,-Not widely grown in CA
Raisin Grape - Answers -Thompson Seedless
Vitis Labrusca - Answers -Concord grape
-Used to make grape juice and jelly
Muscafinia Rotundifolia - Answers -Southeastern grape species used for fresh fruit and jelly
-Immune to Pierce's Disease
Phylloxera - Answers -An insect that attacks the roots of grapevines
-Native to the U.S. but was taken to Europe in the 1800s where it killed a large percentages of
vineyards and vines
Hybrid Direct Producers - Answers -Cross of European wine grapes with American grape
species
-Resistant to phylloxera can be achieved but wine quality was low
Wine Yeast - Answers -Saccharomyces cerevisiae
-exists naturally
-Out-competes wild yeast in a mixed fermentation
Grafting - Answers -Physically attaching a vinifera top (scion) to a rootstock from an American
species
Powdery Mildew - Answers -Disease that affects the leaves and fruit
-Widespread in both CA and Europe
-Controlled by dusting or spraying the vines with sulfur or by applying fungicides
Downy Mildew - Answers -Serious fungal disease prominent in Europe
-Rarely occurs in CA
Botrytis - Answers -Fungus that infects the fruit cluster and causes bunch rot
-Can produce a rich sweet wine
"Noble root"
When does the vine cycle begin in CA? - Answers April 1st
Veraison - Answers -Onset of ripening
, -Begins when berries start to develop color and soften
When is fruit harvested? - Answers Around September 15th
Fermentation Equation - Answers C6H123O6 --> 2CH3CH2OH + 2CO2
glucose Zenthonal 2CO2
Log Phase - Answers When the culture begins to grow exponentially.
How To Calculate Ethanol Yield - Answers Multiply initial sugar concentration by 0.55 = final
alcohol %
Lactic Acid Bacteria - Answers -Grows well under low oxygen
-Can sometimes cause undesirable compounds
-Found on surface of grape and leaves
Brettanomyces - Answers -A wild yeast
-Makes wine unpleasant to drink
-Ethanol tolerant
-SO2 sensitive
-Developed mostly in red wines
Acetic Acid Bacteria - Answers -Acetobacter Species
-"Vinegar Bacteria
-Required O2
-SO2 sensitive
What decides when the time of harvest is? - Answers Sugar and acid concentrations of the
grapes
Lag Phase - Answers When the yeast adjusts to its new environment.
Chardonnay - Answers -Main White Wine Grape
-Important component of Champagne and sparkling wines
-Widely grown in CA
Budding - Answers When a daughter cell forms and separates from the mother cell leaving a
budscar.
