Plant Science & Horticulture Final Exam
2026-2027 | 194 Questions with Answers |
Soil Science, Photosynthesis, IPM, Pruning
& Taxonomy
Description:
Master plant science for 2026-2027 with this complete 194-question exam covering
photosynthesis, soil pH, xylem, pruning, IPM, binomial nomenclature, and fruit crop
management.
Each question includes a correct answer and clear explanation. Perfect for horticulture
students, Master Gardener candidates, and university exam prep.
Download the full 2026-2027 study guide now and pass with confidence.
, Plant Science Exam 2026-2027: 194 Q&A
Section 1: Plant Organs and Structures
1. Which of the following is NOT an example of a plant organ?
A. Xylem
B. Leaf
C. Flower
D. Stem
Answer: A
Explanation: Xylem is a vascular tissue, not an organ. Leaves, flowers, and stems are true
plant organs composed of multiple tissues.
2. The basic structural and functional unit of a plant is the:
A. Cell
B. Epidermis
C. Root
D. Leaf
Answer: A
Explanation: The cell is the smallest living unit in plants, responsible for all basic life
processes.
3. Which of the following is an example of a plant with herbaceous (non-woody) stems?
A. Red oak
B. Azalea
C. Japanese maple
D. Daffodil
Answer: D
Explanation: Daffodils have soft, green herbaceous stems. Red oaks, azaleas, and Japanese
maples produce woody stems.
,4. An example of a plant with a fibrous root system is:
A. Carrot
B. Lawn grass
C. Pine tree
D. Oak tree
Answer: B
Explanation: Lawn grasses have fibrous root systems with many fine, branching roots.
Carrots have taproots; pines and oaks have woody taproot systems.
Section 2: Plant Physiology and Processes
5. Flowers can form fruits, while roots, stems, and leaves can form vegetables.
True
False
Answer: True
Explanation: Botanically, fruits develop from flowers. Vegetables are other plant parts
(roots, stems, leaves) used in savory culinary contexts.
6. Transpiration is the loss of water vapor through the:
A. Roots
B. Flowers
C. Stomata
D. Cuticle
Answer: C
Explanation: Stomata are pores in leaf epidermis through which water vapor exits during
transpiration.
7. Which term refers to plants making their own food?
A. Respiration
B. Transpiration
C. Photosynthesis
, D. Fermentation
Answer: C
Explanation: Photosynthesis is the process by which plants convert light energy into
chemical energy (sugars).
8. In which of the following cell types does cellular respiration occur?
A. Parenchyma
B. Epidermal
C. Meristematic
D. All of the above
Answer: D
Explanation: Cellular respiration occurs in all living plant cells because all require energy
for metabolism.
9. Xylem is the primary path for conducting:
A. Sugars from leaves to roots
B. Water and minerals upward from soil
C. Hormones from roots to shoots
D. Oxygen to root cells
Answer: B
Explanation: Xylem transports water and dissolved minerals from roots upward to shoots
and leaves.
10. Which of the following is NOT a plant that responds to shorter day length (short-day
plant)?
A. Dandelion
B. Knock Out rose
C. Chrysanthemum
D. Poinsettia
2026-2027 | 194 Questions with Answers |
Soil Science, Photosynthesis, IPM, Pruning
& Taxonomy
Description:
Master plant science for 2026-2027 with this complete 194-question exam covering
photosynthesis, soil pH, xylem, pruning, IPM, binomial nomenclature, and fruit crop
management.
Each question includes a correct answer and clear explanation. Perfect for horticulture
students, Master Gardener candidates, and university exam prep.
Download the full 2026-2027 study guide now and pass with confidence.
, Plant Science Exam 2026-2027: 194 Q&A
Section 1: Plant Organs and Structures
1. Which of the following is NOT an example of a plant organ?
A. Xylem
B. Leaf
C. Flower
D. Stem
Answer: A
Explanation: Xylem is a vascular tissue, not an organ. Leaves, flowers, and stems are true
plant organs composed of multiple tissues.
2. The basic structural and functional unit of a plant is the:
A. Cell
B. Epidermis
C. Root
D. Leaf
Answer: A
Explanation: The cell is the smallest living unit in plants, responsible for all basic life
processes.
3. Which of the following is an example of a plant with herbaceous (non-woody) stems?
A. Red oak
B. Azalea
C. Japanese maple
D. Daffodil
Answer: D
Explanation: Daffodils have soft, green herbaceous stems. Red oaks, azaleas, and Japanese
maples produce woody stems.
,4. An example of a plant with a fibrous root system is:
A. Carrot
B. Lawn grass
C. Pine tree
D. Oak tree
Answer: B
Explanation: Lawn grasses have fibrous root systems with many fine, branching roots.
Carrots have taproots; pines and oaks have woody taproot systems.
Section 2: Plant Physiology and Processes
5. Flowers can form fruits, while roots, stems, and leaves can form vegetables.
True
False
Answer: True
Explanation: Botanically, fruits develop from flowers. Vegetables are other plant parts
(roots, stems, leaves) used in savory culinary contexts.
6. Transpiration is the loss of water vapor through the:
A. Roots
B. Flowers
C. Stomata
D. Cuticle
Answer: C
Explanation: Stomata are pores in leaf epidermis through which water vapor exits during
transpiration.
7. Which term refers to plants making their own food?
A. Respiration
B. Transpiration
C. Photosynthesis
, D. Fermentation
Answer: C
Explanation: Photosynthesis is the process by which plants convert light energy into
chemical energy (sugars).
8. In which of the following cell types does cellular respiration occur?
A. Parenchyma
B. Epidermal
C. Meristematic
D. All of the above
Answer: D
Explanation: Cellular respiration occurs in all living plant cells because all require energy
for metabolism.
9. Xylem is the primary path for conducting:
A. Sugars from leaves to roots
B. Water and minerals upward from soil
C. Hormones from roots to shoots
D. Oxygen to root cells
Answer: B
Explanation: Xylem transports water and dissolved minerals from roots upward to shoots
and leaves.
10. Which of the following is NOT a plant that responds to shorter day length (short-day
plant)?
A. Dandelion
B. Knock Out rose
C. Chrysanthemum
D. Poinsettia
