CERTIFIED ARBORIST ACTUAL EXAM | COMPLETE AND GRADED QUESTIONS AND
ANSWERS 2026 LATEST UPDATED | 100% GRADED CORRECT | 100% GUARANTEED TO
PASS | GET A+
1. Leaves: The "food factories" of trees are:
2. Photosynthesis: This process combines Co2 and water in a reaction driven
by light to produce sugars:
3. Transpiration: The loss of water vapor from the leaves is called:
4. Stomata: Small pores, between guard cells on the undersides of leaves and
green plant parts, through which gases are exchanged and water loss is
regulated.
5. Xylem: Water and dissolved essential minerals are transported within the
tree in this tissue:
6. Phloem: This tissue conducts carbohydrates:
7. Compartmentalization Of Decay In Trees: CODIT stands for:
8. Wall 1: Vertical spread of decay is resisted by this wall, plugging xylem
vessels:
,9. Wall 3: Lateral spread of decay is inhibited by this wall, activating ray cells:
10. Wall 4: This wall is formed by new wood tissue and is the strongest:
11. Wall 2: Inward spread of decay is inhibited by this wall:
12. Buckeye, Horsechestnut: Name a palmately compound leaf species:
13. 1: A compound leaf with multiple leaflets will have how many buds?
14. Acer: In the scientific name Acer saccharinum, which is the genus?
15. Beech Family: Fagaceae is what?
16. Oaks, Magnolia: Name a tree species with an alternate leaf arrangement:
17. True: True/False: Soil can hold water so tightly that the ability of tree roots
to absorb the water is restricted:
18. Acidic: On the pH scale, less than 7 is:
19. Alkaline: Iron and Manganese may be in a chemical form that is
unavailable to trees if the soil is:
20. Alkaline: On the pH scale, more than 7 is:
21. Cation Exchange Capacity: CEC stands for:
, 22. False: True/False: Most soil organisms cause disease or decay in tree
roots:
23. False: True/False: It is better to water shallow and more frequently:
24. Antitranspirants: These are materials sprayed on plants to reduce water
loss through transpiration:
25. Evapotranspiration: This is the measure of the rate of water use by plants
and evaporation from soil:
26. Early morning, late evening: These two times of day are the most
beneficial to water plants:
27. True: True/False: Soil surfaces can be compacted by irrigation hitting it:
28. 2.5: A 50-pound bag of 20-10-5 fertilizer contains how many pounds of
Potassium?
29. Slow-release: These types of fertilizers are released over a long period of
time:
30. Chlorosis: Yellowing between the leaf veins is called:
ANSWERS 2026 LATEST UPDATED | 100% GRADED CORRECT | 100% GUARANTEED TO
PASS | GET A+
1. Leaves: The "food factories" of trees are:
2. Photosynthesis: This process combines Co2 and water in a reaction driven
by light to produce sugars:
3. Transpiration: The loss of water vapor from the leaves is called:
4. Stomata: Small pores, between guard cells on the undersides of leaves and
green plant parts, through which gases are exchanged and water loss is
regulated.
5. Xylem: Water and dissolved essential minerals are transported within the
tree in this tissue:
6. Phloem: This tissue conducts carbohydrates:
7. Compartmentalization Of Decay In Trees: CODIT stands for:
8. Wall 1: Vertical spread of decay is resisted by this wall, plugging xylem
vessels:
,9. Wall 3: Lateral spread of decay is inhibited by this wall, activating ray cells:
10. Wall 4: This wall is formed by new wood tissue and is the strongest:
11. Wall 2: Inward spread of decay is inhibited by this wall:
12. Buckeye, Horsechestnut: Name a palmately compound leaf species:
13. 1: A compound leaf with multiple leaflets will have how many buds?
14. Acer: In the scientific name Acer saccharinum, which is the genus?
15. Beech Family: Fagaceae is what?
16. Oaks, Magnolia: Name a tree species with an alternate leaf arrangement:
17. True: True/False: Soil can hold water so tightly that the ability of tree roots
to absorb the water is restricted:
18. Acidic: On the pH scale, less than 7 is:
19. Alkaline: Iron and Manganese may be in a chemical form that is
unavailable to trees if the soil is:
20. Alkaline: On the pH scale, more than 7 is:
21. Cation Exchange Capacity: CEC stands for:
, 22. False: True/False: Most soil organisms cause disease or decay in tree
roots:
23. False: True/False: It is better to water shallow and more frequently:
24. Antitranspirants: These are materials sprayed on plants to reduce water
loss through transpiration:
25. Evapotranspiration: This is the measure of the rate of water use by plants
and evaporation from soil:
26. Early morning, late evening: These two times of day are the most
beneficial to water plants:
27. True: True/False: Soil surfaces can be compacted by irrigation hitting it:
28. 2.5: A 50-pound bag of 20-10-5 fertilizer contains how many pounds of
Potassium?
29. Slow-release: These types of fertilizers are released over a long period of
time:
30. Chlorosis: Yellowing between the leaf veins is called:
