Plant Matter from Air and Water
Elementary School Science · Flashcards · Recall
ELEMENTARY SCHOOL SCIENCE · FLASHCARDS
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QUESTION
What is the main role of sunlight in plant mass increase: provide matter or provide energy?
QUESTION
What evidence from van Helmont's experiment supports that soil is not the main source of plant mass?
QUESTION
What tiny openings in leaves let
C
O
2
CO_2
C
O
2
enter and
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2
O_2
O
2
exit?
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ANSWER
Stomata. These pores open and close to regulate gas exchange in leaves.
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