WSET DIPLOMA D1 EXAM 110 QUESTIONS & CORRECT ANSWERS LATEST 2025

WSET DIPLOMA D1 EXAM 110 QUESTIONS &
CORRECT ANSWERS LATEST 2025



Number of known grape varieties in the world - ANSWER-Over 1,000


Majority of global grape varieties belong to what species - ANSWER-Vitis Vinifera


Vitis Vinifera is indigenous to where - ANSWER-Eurasia


What grape varietal species is indigenous to Eurasia - ANSWER-Vitis Vinifera


Where are North American grape species used for production? - ANSWER-New
York state


What is the main function of N. American grape species globally? - ANSWER-
Rootstocks for grafting vitis vinifera onto


What are the most important N. American grape species (4)? - ANSWER-Vitis
Labrusca
Vitis Riparia
Vitis Berlandieri
Vitis Rupestris


Anatomy of the Vine (4) - ANSWER-Main shoots

, One-year-old wood
Permanent wood
Roots


What are the major structures of the main shoots - ANSWER-Stem
bud
leaves
lateral shoots
tendrils
Inflorescences / grape bunches


What does the canopy refer to? - ANSWER-Main shoots and their major
structures


Where do main shoots grow from? - ANSWER-Buds retain from prior year


What does the stem do for its structures (3)? - ANSWER-Structure components
attach to
Transports water and solutes to/from structures
Store of carbohydrates


What are in the solutes in stems? - ANSWER-Sugars and minerals


What are nodes on a stem? - ANSWER-Swellings where structures are attached