A small green detour.
Roots, shoots, seeds, and the things plants quietly get done.
Ten questions, with the answers explained. Try them in your head, then open each answer when you're ready.
Play this quiz →QUESTION 1 / 10
Which gas do plants take in for photosynthesis?
- Neon
- Helium
- Hydrogen
- Carbon dioxide
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Carbon dioxide
Photosynthesis uses carbon dioxide and water to make sugars using light energy.
QUESTION 2 / 10
Which pigment gives most leaves their green color?
- Chlorophyll
- Hemoglobin
- Melanin
- Keratin
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Chlorophyll
Chlorophyll absorbs light for photosynthesis and reflects much of the green light.
QUESTION 3 / 10
Which plant part usually takes up water from soil?
- Pollen
- Roots
- Fruit
- Petals
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Roots
Roots absorb water and minerals and help anchor the plant.
QUESTION 4 / 10
Which part of a flowering plant develops from the ovary and contains seeds?
- Fruit
- Leaf vein
- Stem
- Root hair
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Fruit
The ovary develops into a fruit after fertilization in many flowering plants.
QUESTION 5 / 10
What is a cactus spine generally a modified form of?
- A leaf
- A root
- A fruit
- A seed
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A leaf
Cactus spines are modified leaves. The fleshy stem usually handles much of the photosynthesis.
QUESTION 6 / 10
What is the transfer of pollen to a flower's receptive surface called?
- Germination
- Erosion
- Pollination
- Fermentation
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Pollination
Pollination moves pollen to the stigma in flowering plants, enabling fertilization.
QUESTION 7 / 10
What do we call the start of growth from a seed?
- Condensation
- Migration
- Germination
- Molting
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Germination
During germination, a seed begins growing into a new plant.
QUESTION 8 / 10
Which of these plants is a grass?
- Maple
- Oak
- Bamboo
- Rose
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Bamboo
Bamboo belongs to the grass family, even though some species grow taller than trees.
QUESTION 9 / 10
Which tree is known for producing acorns?
- Willow
- Oak
- Birch
- Pine
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Oak
Acorns are the nuts of oak trees.
QUESTION 10 / 10
Which plant is grown to make linen?
- Tea
- Coffee
- Cotton
- Flax
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Flax
Linen is made from fibers in flax stems. Cotton comes from a different plant.