About this Study Set
This study set covers Horticulture through
18 practice questions.
Fundamental facts about plant cultivation, gardening, and crop science. Every question includes the correct answer so you can learn as you go — pick any format above to get started.
Questions & Answers
Browse all 18 questions from the
Introduction to Horticulture study set below.
Each question shows the correct answer — select a study format above to practice interactively.
1
Which part of a plant is primarily responsible for absorbing water and nutrients from the soil?
-
A
Leaves
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B
Roots
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C
Flowers
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D
Stems
2
What is the process by which green plants use sunlight to synthesize nutrients from carbon dioxide and water?
-
A
Respiration
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B
Germination
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C
Photosynthesis
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D
Transpiration
3
Which of these is a common method of propagating new plants from an existing plant's stem?
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A
Cuttings
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B
Grafting
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C
Layering
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D
All of the above
4
What is the term for the outer covering of a seed?
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A
Cotyledon
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B
Seed coat
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C
Embryo
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D
Endosperm
5
Which essential element do plants primarily absorb from the air for photosynthesis?
-
A
Oxygen
-
B
Nitrogen
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C
Carbon dioxide
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D
Hydrogen
6
What is the primary function of the flower on a flowering plant?
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A
Reproduction
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B
Water storage
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C
Photosynthesis
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D
Structural support
7
Which of these is a botanical fruit, even though it is often treated as a vegetable in cooking?
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A
Carrot
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B
Potato
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C
Tomato
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D
Lettuce
8
What is the main purpose of mulch in a garden?
-
A
To add weight to the soil
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B
To retain soil moisture and suppress weeds
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C
To change the color of the flowers
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D
To repel all insects
9
What type of plant lives for more than two years?
-
A
Annual
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B
Biennial
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C
Perennial
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D
Deciduous
10
Which mineral nutrient is most commonly associated with promoting green, leafy growth in plants?
-
A
Nitrogen
-
B
Calcium
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C
Iron
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D
Potassium
11
What tool is most commonly used for trimming small branches or dead flower heads?
-
A
Shovel
-
B
Rake
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C
Pruning shears
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D
Hoe
12
Which of these is considered a 'bulb' plant?
-
A
Tulip
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B
Rose
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C
Sunflower
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D
Fern
13
What is the primary substance that gives plants their green color?
-
A
Xylem
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B
Chlorophyll
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C
Pollen
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D
Nectar
14
What is the correct term for the science and art of growing fruits, vegetables, and ornamental plants?
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A
Zoology
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B
Horticulture
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C
Geology
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D
Astronomy
15
Which soil component is known for having the smallest particles and holding the most water?
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A
Sand
-
B
Silt
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C
Clay
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D
Gravel
16
What is the process of removing excess or dead branches from a tree or shrub?
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A
Pollination
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B
Pruning
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C
Composting
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D
Germination
17
Which of these is an example of a tuber?
-
A
Onion
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B
Potato
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C
Carrot
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D
Garlic
18
What do plants release into the atmosphere as a byproduct of photosynthesis?
-
A
Oxygen
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B
Carbon dioxide
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C
Nitrogen
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D
Methane
