Questions & Answers
Browse all 25 questions from the
Horticulture Basics study set below.
Each question shows the correct answer — select a study format above to practice interactively.
1
Which part of the plant grows underground and absorbs water and nutrients?
-
A
Stem
-
B
Root
-
C
Leaf
-
D
Flower
2
What is the primary source of energy for most plants?
-
A
Water
-
B
Soil
-
C
Sunlight
-
D
Oxygen
3
Which of these is a vegetable that grows underground as a root?
-
A
Carrot
-
B
Lettuce
-
C
Tomato
-
D
Cucumber
4
What do plants release into the air that humans need to breathe?
-
A
Carbon dioxide
-
B
Nitrogen
-
C
Oxygen
-
D
Helium
5
Which of these is a fruit that grows on a tree?
-
A
Broccoli
-
B
Apple
-
C
Potato
-
D
Spinach
6
What is the green pigment in leaves that helps plants absorb sunlight?
-
A
Chlorophyll
-
B
Carotene
-
C
Xanthophyll
-
D
Anthocyanin
7
Which term describes the process of plants losing water through their leaves?
-
A
Photosynthesis
-
B
Transpiration
-
C
Germination
-
D
Pollination
8
What structure protects the seeds of a flowering plant?
-
A
Root
-
B
Stem
-
C
Fruit
-
D
Leaf
9
Which of these garden tools is used for digging small holes?
-
A
Rake
-
B
Trowel
-
C
Hose
-
D
Wheelbarrow
10
What is a plant that completes its entire life cycle in one growing season called?
-
A
Perennial
-
B
Biennial
-
C
Annual
-
D
Deciduous
11
Which gas do plants primarily absorb from the air for photosynthesis?
-
A
Oxygen
-
B
Carbon dioxide
-
C
Hydrogen
-
D
Argon
12
What is the process called when a seed begins to grow into a plant?
-
A
Germination
-
B
Pollination
-
C
Fertilization
-
D
Pruning
13
Which part of the plant is responsible for reproduction by producing seeds?
-
A
Root
-
B
Flower
-
C
Stem
-
D
Bark
14
What is added to soil to help plants grow by providing extra nutrients?
-
A
Sand
-
B
Fertilizer
-
C
Rocks
-
D
Water
15
Which of these is considered an evergreen tree?
-
A
Maple
-
B
Oak
-
C
Pine
-
D
Elm
16
What kind of plant requires support to climb up a structure?
-
A
Shrub
-
B
Vine
-
C
Grass
-
D
Tree
17
Which insect is most famous for pollinating flowers?
-
A
Ant
-
B
Bee
-
C
Fly
-
D
Mosquito
18
What are plants that live for more than two years called?
-
A
Annuals
-
B
Perennials
-
C
Biennials
-
D
Ephemeral
19
Which of these is the edible part of a broccoli plant?
-
A
Roots
-
B
Flowers
-
C
Seeds
-
D
Leaves
20
What is the main purpose of mulch in a garden bed?
-
A
To attract pests
-
B
To keep soil moist
-
C
To kill plants
-
D
To provide light
21
Which of these is a succulent plant known for storing water?
-
A
Aloe Vera
-
B
Fern
-
C
Maple
-
D
Moss
22
What is the term for the study and cultivation of fruits, vegetables, and flowers?
-
A
Zoology
-
B
Geology
-
C
Horticulture
-
D
Physics
23
Which garden tool is best used for collecting fallen leaves?
-
A
Hoe
-
B
Rake
-
C
Shovel
-
D
Pruner
24
What layer of the Earth supports plant growth?
-
A
Bedrock
-
B
Soil
-
C
Core
-
D
Mantle
25
Which of these is a common herb used in cooking?
-
A
Basil
-
B
Rose
-
C
Tulip
-
D
Dahlia
