WSET DIPLOMA D1 CHAPTER 1, 2025
EXAM GRADED A+ WITH ACTUAL
QUESTIONS AND CORRECT ANSWERS
Number of known grape varieties in the world - Over 1,000
Majority of global grape varieties belong to what species - Vitis Vinifera
Vitis Vinifera is indigenous to where - Eurasia
What grape varietal species is indigenous to Eurasia - Vitis Vinifera
Where are North American grape species used for production? - New York state
What is the main function of N. American grape species globally? - Rootstocks
for grafting vitis vinifera onto
What are the most important N. American grape species (4)? - Vitis Labrusca
Vitis Riparia
Vitis Berlandieri
Vitis Rupestris
Anatomy of the Vine (4) - Main shoots
One-year-old wood
, Permanent wood
Roots
What are the major structures of the main shoots - Stem
bud
leaves
lateral shoots
tendrils
Inflorescences / grape bunches
What does the canopy refer to? - Main shoots and their major structures
Where do main shoots grow from? - Buds retain from prior year
What does the stem do for its structures (3)? - Structure components attach to
Transports water and solutes to/from structures
Store of carbohydrates
What are in the solutes in stems? - Sugars and minerals
What are nodes on a stem? - Swellings where structures are attached
What are internodes? - Length of stem between nodes
What does lignify mean? - Green shoots become woody, rigid, and turn brown
EXAM GRADED A+ WITH ACTUAL
QUESTIONS AND CORRECT ANSWERS
Number of known grape varieties in the world - Over 1,000
Majority of global grape varieties belong to what species - Vitis Vinifera
Vitis Vinifera is indigenous to where - Eurasia
What grape varietal species is indigenous to Eurasia - Vitis Vinifera
Where are North American grape species used for production? - New York state
What is the main function of N. American grape species globally? - Rootstocks
for grafting vitis vinifera onto
What are the most important N. American grape species (4)? - Vitis Labrusca
Vitis Riparia
Vitis Berlandieri
Vitis Rupestris
Anatomy of the Vine (4) - Main shoots
One-year-old wood
, Permanent wood
Roots
What are the major structures of the main shoots - Stem
bud
leaves
lateral shoots
tendrils
Inflorescences / grape bunches
What does the canopy refer to? - Main shoots and their major structures
Where do main shoots grow from? - Buds retain from prior year
What does the stem do for its structures (3)? - Structure components attach to
Transports water and solutes to/from structures
Store of carbohydrates
What are in the solutes in stems? - Sugars and minerals
What are nodes on a stem? - Swellings where structures are attached
What are internodes? - Length of stem between nodes
What does lignify mean? - Green shoots become woody, rigid, and turn brown
